The lymph ducts in the thoracic cavity drain into the: a) inferior vena cava. ??????? ??????????? ???????? Place the following structures in the order in which a drop of blood would travel through the right side of the heart, beginning with the superior and inferior venae cavae and ending with the lungs. Inferior vena cava b. Aortic arch c. Superior vena cava d. Pulmonary arteries. ???????????? ?????? . have read stuff from. ????. ? ????????! Structure Description Notes; ischium (N486, TG3-04) the "V"- shaped bone that forms the posteroinferior part of the pelvis: . Greater, Lesser, and Least Splanchnic nerves (pass through crura) 5. Ok I know one mnemonic for that:- I ate (8) ten eggs AT twelve. ????? ????? (a) descending aorta (b) pulmonary arteries (c) coronary arteries (d) posterior intercostal arteries (e) internal thoracic arteries. B. Aorta. ?????? ??????????? Scientist who work in the life sciences could contribute new developments to medicine. a) lumbar arteries b) internal iliac arteries c) external iliac arteries d) renal arteries e) posterior intercostal arteries. Where is the medial arcuate ligament is attached to? ???????? Recent Posts. At what level; does the IVC pass through the diaphragm? ?, ???????? ???????! ?? a) bronchi b) pulmonary arteries c) pulmonary veins d) hepatic veins e) superior vena cava. ????????? ?????????? ????! ????. The IVC is the only structure that directly passes through the central tendon of the diaphragm muscle. Sympathetic trunk lies posterior to the MAL. It bears a resemblance to an equilateral triangle. Blood from the systemic cephalic circulation enters the heart through the ___ at the ___. a. Which region of the male urethra passes through the urogenital diaphragm? ??? ????????? b. pulmonary semilunar valve, What vessel supplies blood primarily to the small intestines: a. renal artery b. inferior mesenteric artery c. superior mesenteric artery d. gastric artery, Is blood oxygenated or deoxygenated in each of the following vessels? Superior Mesenteric Artery c. Inferior Mesenteric Artery d. Renal Vein e. Superior Mesenteric Vein, Blood enters the heart from the systemic circulation through which of the following blood vessels? ; 6 Enumerate the branches of a typical intercostal . Which of the following options is correct? ??? The inferior vena cava, esophagus, descending aorta, and vagus nerve must all pass through the diaphragm on their way to the lower sections of the body. long, flexible tube-like structure called the esophagus. ? ????? Your style is so unique in comparison to other folks I All of the following structures pass through the diaphragm except the _____. ????????? ????? ?????? ????! ???????! The diaphragm is innervated by the a) Right ventricle, pulmonary artery, and left atrium b) Left ventricle, aorta, and inferior vena cava c) Right atrium, aorta, left ventricle d) Superior vena cava, right atrium, and le. The structures that pass through the aortic hiatus are the aorta, the azygous vein and the thoracic duct. ????? ???????? ??? The attachments of diaphragm can be divided into peripheral and central attachments. ???????? ???? ??????? ; ??????????? A. Auricle. ????????? (a) right lung (b) heart (c) azygos vein (d) esophagus (e) descending aorta. A broken neck, after all, is still quite . What structures pass through the esophageal hiatus other than the esophagus? The capillaries of the intestinal submucosa lead directly to the a. hepatic artery b. vena cava c. pulmonary circuit d. descending aorta e. hepatic portal circulation. ??????? ?? ?????? ???????? Structures Passing Through Diaphragm Mnemonic. Post published: May 26, 2021; Structures Passing Through Diaphragm Mnemonic Search this website. Difference between Hypertrophic Scar and Keloid. Browse over 1 million classes created by top students, professors, publishers, and experts. ??? ???????? ?? ?????????? Since one function of the diaphragm is to provide passageway for structures from the thorax to the abdomen, its surface has several openings: caval opening (vena caval foramen), esophageal hiatus, and . ?????? ??????? At what level does the esophagus pass through the diaphragm? ??????. ?, ??????? ???? ??????? Arrange them in order from the highest to the lowest blood pressure. ???????????? ?????? ???????? ? Discover the diaphragm location, how it allows for respiration, and secondary functions. ?????????? The vertebral bodies of LI and LII (medial). 125?? The thickening of the fascia of the muscle Quadratus Lumborum. Structures passing through the parotid gland Parotid duct (Stensen Duct) Vascular supply Arterial supply Venous drainage Lymphatic drainage Innervation Histology Embryology Disorders of the parotid gland Parotid gland stones (Sialolithiasis) Parotid gland inflammation (Parotitis) Suppurative sialadenitis Parotid gland surgery Sources + Show all ?????? Which of the following is the largest artery of the systemic circuit? Sympathetic trunk, 3,4 pass deep to the medial arcuate ligament. ??????? ? It's hard to remember their relation. (a) inferior vena cava. There are three openings in the diaphragm, allowing structures to pass between the thoracic and abdominal cavity. c. small cardiac vein. Structures passing through three major openings of the diaphragm. 4 shows the 3D FEM of the building, in which beams and columns were modeled using two-node frame elements while RC slabs were modeled using four-node shell elements and diaphragm constraint was applied at each floor level. ??? ?? Structures passing through: Oesophagus. high-frequency current; A61B18/14 Probes or electrodes therefor ????????? A. Aorta. ???????? ???????? ???????????? and Part of the pancreas is the: a) superior mesenteric artery b) celiac artery c) Inferior mesenteric artery d) abdominal artery. ?????? ??????? ??????? ????? ?, ?? ?, ? . ? What structure lies posterior to the medial arcuate ligament? Structures passing through: (1)Venal caval hiatus: IVC, branches of the right phrenic nerve. ???? The deoxygenated blood is brought back from the lower limbs to the heart by the a. superior vena cava. There are a number of openings in the diaphragm through which structures pass between the thorax and abdomen. What is the lateral arcuate ligament and what is its attachment? ??????? ??? ???????????? ???????????? ??????? ; ???????? ?????????? ????? ??????????? ?????? D. Coronary sinus. Inferior Vena Cava and right phrenic nerve through the caval opening. Trace the flow of blood from the inferior vena cava to the aorta, naming the major blood vessels, valves, and chambers in the pathway. c. internal jugular vein. Common iliac c. Superior vena cava d. External iliac e. Brachiocephalic f. Femoral g. Popliteal h. Inferior vena cava, Collected lymph is drained into the venous system via the: a) subclavian arteries b) superior vena cava c) subclavian veins d) brachiocephalic veins. ????????? Left crus of the diaphragmatic crura. For one, it has openings (hiatuses) that allow for structures to pass through from the upper to lower trunk. The membranous urethra is the shortest and narrowest part of the male urethra. What sort of relation? ?????????. d. brachiocephalic vein. The male urethra is often divided into 3 segments on the basis of its investing structures: prostatic urethra, membranous urethra, and spongy (or penile) urethra. Its more environmentally friendly than coffee, has just enough caffeine for gentle stimulation, and even offers tea drinkers calming effects thanks to the natural amino acid L-theanine. It consists of the levator ani muscles on either side. C. Pulmonary trunk. ????????????? actually a nice and useful piece of info. All of the following structures pass through the diaphragm except the d) trachea. The blood vessel supplying oxygenated blood to the stomach, spleen, liver, gall bladder. ????????????? ????????????. ?????????? ????? ??????????? There are three large openings one for the aorta, one for the esophagus, . First Aid Step 1 Proposed Errata and Suggestions List of Submitted Student Feedback, Submit Errata or Suggestions for First Aid Step 1, First Aid / USMLE-Rx Student Ambassador Program, Mnemonic Monday: Structures of the Diaphragm, Surviving Step 1: Creating a USMLE Study Schedule, https://drive.google.com/file/d/1Y0zYtrRCia9jfU-BH3WPIbhph6HvwDRl/view?usp=sharing, https://drive.google.com/file/d/12UGUi1eb4vB_-VAklwchUhrlKM8233go/view?usp=sharing, https://tsn.ua/ru/ukrayina/ukrainskie-shkolniki-stali-luchshimi-v-mire-po-matematike-1469223.html, Mnemonic Monday: Sensory and Motor Anatomy Afferent vs Efferent. The right and left common iliac arteries branches off of the _______. ?????? First Aid and Starbucks The Perfect Study Companions, ScholarRx Announces Partnership with National Association of Medical Spanish, What to Expect When You Are ExpectingYour First Week of Medical School, Join the ScholarRx Student Advisory Council. (???????? phone Georgia. A. Anterior cerebral artery B. Basilar artery C. Circle of Willis D. Ductus deferens E. Ductus venosus F. Foramen ovale G. M, Blood in the superior vena cava will enter the ______. ??????? It has hiatuses for the passage of the inferior vena cava ( caval hiatus ), esophagus ( esophageal hiatus ), and the aorta ( aortic hiatus ) at the 8th, 10 th, and 12th thoracic vertebrae respectively. The pelvic diaphragm is this dome-shaped set of structures, which we're looking down at. ??? A person blueberry resources 433mg, and even 721 {percent|%|per cent|pct|percentage|per-cent|p . 0.5 - 0.75 inches (12 - 19 mm) in length and is the section of the urethra that passes through the male urogenital diaphragm. The diaphragm has several openings through which structures can transverse from one cavity to another (see Fig. c. aorta. ???????? : ?????? ????? ???? But, youll want to allow process these products upon his lingo and time-frame. ?????? Esophagus (T10) 3. ????????? ????????? The bodies of the vertebrae LI to LIII and intervening intervertebral discs, The bodies of the vertebrae LI and LII and intervening intervertebral discs. Superior vena cava c. Azygos vein d. Inferior vena cava e. Internal thoracic vein f. Right brachiocephalic vein, Which of the following supplies blood to the liver? Nice stuff, simply nice! The roof diaphragm is rigid in its own plane and mass at the roof is uniformly distributed. Identify the three 'passageways' through the diaphragm, the aortic hiatus, esophageal hiatus, and caval foramen. o Minor Openings: These are unnamed. ?? ??? ???? ?????! The diaphragm is a musculotendinous structure with a peripheral attachment to a number of bony structures. Male urethra and its segments. ??? (a) pulmonary vein (b) All of these choices are correct (c) pulmonary artery (d) atrioventricular valve. ? ????????????? d. umbilical vein. ??????? Structure The esophagus begins at the throat (pharynx) and travels to the stomach, passing through the diaphragm en route. One can remember this with the mnemonic " I 8 10 EGGs AAT 12 ": ????? ???? ??????????? whoah this weblog is great i love studying your articles. The esophagus enters the stomach at the _______. ??????????. ||how to draw easiest way of DIAPHRAGM || STRUCTURES passing through diaphragm|| PART-1 physio gainer 269 subscribers Dislike Share 380 views Nov 19, 2021 physio gainer @physio gainer. ??????. May 26, 2021. ????? Smaller and shorter than the right crus, it arises from the bodies of L1-L2 . A. ductus venosus empties into superior vena cava B. ductus arteriosus empties into the aorta C. the fossa ovalis is a shunt between the atria D. ligamentum arteriosum is found between the pulmona, Starting with the superior and inferior vena cava, trace the flow of blood through the heart to the lungs and back (pulmonary Circuit) to the aorta (where it leaves the heart for the rest of the body). (a) fundus (b) cardia (c) pyloris (d) duodenum (e) None of these. The water vapor in your breath cools suddenly when it reaches the much colder outside air. ?????? 200?. . A. Pectinate muscles. 1: Breath on a cold day. ???? 4. ??? ?????? ? ?????? A) Coronary arteries B) Pulmonary artery C) Pulmonary veins D) Cardiac veins, Blood in the superior vena cava will enter the {Blank}. ??????????? Through the right crus of the diaphragm at the level of TX, just to the left of aortic hiatus. As long as your bullet's path is aimed at the center of the vital zone, this shouldn't be a problem. When the diaphragm contracts, the chest cavity enlarges, allowing for inhalation to occur. ?? ?????? What structures pass through the aortic hiatus other than aorta? When the. ?????? ??????????? pain in your lower ribs. ?????? Which of the following is NOT an artery? ? If these boxes are separated by $1.0 \mathrm{~m}$, estimate the gravitational force between them. This structure is also the physical division between the thoracic cavity and the abdominal cavity. ??????? Trace the pathway of blood in vessels from the superior mesenteric vein to the superior mesenteric artery. ???? (d) Femoral artery. ????????? You've got this midline raft, this ligamentous midline where the two halves of the levator ani muscle attach. ?????? ????????????? ???????? a. aorta b. pulmonary trunk c. inferior vena cava d. coronary sinus e. pulmonary veins. ??????? d. foramen ovale. ??????????????? D. Chordae tendineae. ???????? ??????? ???????? ???? ???? ????? ????????? ?????! ????. Application, Admit card, Syllabus, Exam date & Result. Contents 1 Structure 2 Clinical significance 3 See also 4 References 5 External links Structure [ edit] It is located in the right crus, one of the two tendinous structures that connect the diaphragm to the spine. The posterior and anterior vagal nerves are also found passing through this hiatus. Receives blood from all areas superior to he diaphragm, except the lungs a) Superior vena cava b) Exterior jugular vein c) Axillary artery d) Subclavian vein e) Pulmonary artery. Pulmonary arteries have partial pressure of CO_2 relative to arteries. Veins of the Azygos system pass through crura (R ascending lumbar v [azygos], L ascending lumbar v [hemiazygos]) 6. ??????????? ?????? (3) C-shaped cartilages keep structure Y open during breathing. ?????????? D) vena cava. ????????????? ????? ?????? Which fascia of the muscle thickens to form the medial arcuate ligament? ???????? ??? Trace the movement of blood from the knee to the heart using the following veins. IVC (T8) 2. Which of these vessels enters the right ventricle? (a) Nose (b) Trachea (c) Esophagus (d) Lung (e) Alveolus. a) nutrient artery b) periosteal artery c) epiphyseal artery d) metaphyseal artery. ????????????? ? Name all structures (vessels, heart chambers, and others) passed through. d. lies mostly to the right of the midline of the sternum. D) coronary sinus. ??????? ???????? ?????? ??????. ?????????? ??????? ?????! ????????? (a) sinuatrial node (b) atrioventricular node (c) atrioventricular bundle (d) chordae tendineae (e) papillary muscles. ??????? D. Life science could lead to the development of better computer technology. c) external jugular veins. D. Chordae tendineae. Abdominal Examination Signs. 2. . E. Fossa ovalis. prostatic urethra: passes through center of prostate gland. ????? Life science could change what the student knows about rocks and geology. ??????????? ?? ???????????? ???????! A. ?, ??? What structures anchor the diaphragm is anchored to the lumbar vertebrae? ????? C) pulmonary veins. Inferior hemiazygos vein which pierce the left crus. Heres one for the diaphragm that will help you not only in orienting yourself in the lab, but also in identifying cross-sectional levels on x-rays in the future. Finally, the aortic hiatus is located between the two crura at the . What you cant assume is that all green tea is created equal, therefore all tastes the same. The arteries that supply blood to the diaphragm are 5 pairs of intercostal arteries, inferior phrenic arteries, superior phrenic arteries, and subcostal arteries. The following is a list of some of the blood vessels of the systemic circuit: aorta, arterioles, venules, inferior vena cava, capillaries, large veins, small arteries. The diaphragm is the physical division between the thoracic and abdominal cavities. Diaphragm and chest wall anatomy with some clinical correlates Adugna Dagne 2.7k views Blood vessels and lymphatic of the thoracic wall Dr. Mohammad Mahmoud 18k views Intercostal muscles ana 202 obaje godwin sunday 1.4k views Intercostal muscles Dr Asma Lashari 524 views Thoracic wall Mohamed El Fiky 11.9k views thoracic wall Atheer Ahmed Each kind connected with tumors vaccine utilizes a precise same essense: This vaccine, that contains unknown growth muscle or possibly antigens, stimulates the patients bodys defense mechanisms, that will leads to particular body cells that will get rid of cancer debris and forestall goes back in the cancer. The cardiac muscle is supplied with blood by the a. renal arteries. The diaphragm (in yellow oval) is visible as a sheet of skeletal muscle, which separates the thoracic and abdominal cavities. ?????? ?, ?.?. Which of the following options is correct? ???????? d) Aorta. ?? C. Inferior vena cava. ?, ??????? ??????? ??????. The diaphragm is a musculotendinous structure that separates the thoracic cavity from the abdominal cavity. ????. B. Venae cava (superior and inferior). ?? The IVC traverses the diaphragm at the T8 level. ?????????? Which of the following options is correct? Left ventricle b. c) Pulmonary trunk. All other trademarks and copyrights are the property of their respective owners. ??????????? It is attached anteriorly to the xiphoid process and costal margin, laterally to the 11th and 12th ribs, and posteriorly to the lumbar vertebrae. Associated structures - pass through openings in the diaphragm or pierce the diaphragm (phrenic nerves) This will sometimes mean aiming through the neck area or part of the shoulder. this info, you could aid them greatly. ??????? c. Aorta. (a) Superior Mesenteric artery. A. nose B. trachea C. esophagus D. lungs E. alveolus. (D) Superior cerebral artery. chest, shoulder, back, or abdominal pain. It has three peripheral attachments: ??????????? ?? ??? ??????? Which of the following is the main artery of the pulmonary circuit? ? ???????? ????????? ???????. The diaphragm has 3 main hiatuses - the hiatus of the inferior vena cava (IVC), the esophageal hiatus, and the aortic hiatus. Pig and Human Anatomy Comparison Obviously, ????? ???????????? (C) Anterior inferior cerebellar artery. Which of the following are involve directly in pulmonary circulation? ?? Which of the following options is correct? b) Inferior vena cava and superior vena cava. ???? Blood returns from the lungs during pulmonary circulation via the a. pulmonary artery. *Inferior vena cava *Hepatic portal vein *Superior mesenteric artery *Capillary beds of intestines *Aorta. ????????? a. superior vena cava, right ventricle b. superior vena cava, right atrium c. Jugular vein, left atrium d. Inferior vena cava, left ventricle, Which of the following statements about the circulatory system is false? ???????? ??????????? ? 1-1B). ??? ???????? When the diaphragm contracts, the chest cavity enlarges, allowing for inhalation to occur. Brainscape helps you realize your greatest personal and professional ambitions through strong habits and hyper-efficient studying. Major Openings There are 3 referred to as major openings, viz. ??? ?????? ????????? The esophagus, abdominal aorta, vena cava all traverse the diaphragm to get from the chest to the abdomen. ? The relation of structures that pass through the diaphragm? The diaphragm has 3 main hiatuses the hiatus of the inferior vena cava (IVC), the esophageal hiatus, and the aortic hiatus. ??????? These problems guide a person to anxiety exposure discovered and/or denied with their particular associate. a) Left ventricle; aorta; tricuspid valve b) Right ventricle; superior vena cava; bicuspid valve c) Right atrium; superior vena cava; bicuspid valve d) Left atrium; aorta; tricuspid valve e). ?????? In the middle figure, the inferior fascial layer of the urogenital diaphragm has been removed. (e) pulmonary trunk. ?? The diaphragm arises from a line that goes right around the inside of the lower thoracic aperture, with one interruption, here. ; 3 Name the structures that pass through the superior thoracic aperture (thoracic inlet). Which of the following structures contracts to pump blood through the ascending aorta? ????. This aperture is located in the central tendon at the level of T8. Learn faster with spaced repetition. ????????? b) junction of the internal jugular vein and subclavian vein. You are given two boxes containing electrons, with $1.0 \mathrm{~g}$ of electrons in each box. ???????????? . ?????? e) Left coronary artery. ?????? ???? This is the opening for the esophagus, the esophageal hiatus. ???????. ??????? Write more, thats all I have to say. ? ??????? ???? What vitamin deficiency causes this disorder? Pulmonary trunk. ??????????? The lungs reside in the thoracic cavity, and therefore the trachea does not pass through the diaphragm, which is the inferior border of the thoracic cavity. The mediastinum contains all of the following structures except the _______. c. left brachiocephalic vein. ???????? A. right ventricle - pulmonary trunk B. left atrium - aorta C. left ventricle - superior vena cava and inferior vena cava D. right atrium - aort, Label the following parts of the heart in the figure. d. brachiocephalic vein. ??????????? ?? b. is posterior to the trachea. What structures pass through the central tendon of the diaphragm? Three important structures pass through the diaphragm: the esophagus, and the two main blood vessels of the lower half of the body, the inferior vena cava, and the descending aorta. ALL specimens: Identify the three 'passageways' through the diaphragm, the aortic hiatus, esophageal hiatus, and caval foramen. (b) Renal arteries. ?, ? ???-???? ? b. coronary arteries. Three important structures pass through the diaphragm: the esophagus, and the two main blood vessels of the lower half of the body, the inferior vena cava, and the descending aorta. Assume the boxes are both very small so that you can use the point-particle approximation. This causes the water vapor to condense into a fog of tiny droplets of liquid water. ? ? Provide a hypothesis that explains why bird watchers have noted an increase in the falcon population in recent years. The length is usually around 25 cm (9 to 10 inches) in adults. ???? ??? ); ????????? (A) Vertebral artery. What is one way that the field of life science could affect the everyday life of the student? ?????? (2) Bacteria are filtered by cilia when air passing through structure Y. ??????? (See DG Fig. ???????. ???????? ; 2 Name the structures forming boundaries of superior thoracic aperture (thoracic inlet). The three structures you are looking for are the Asophagus, the Descending Aorta and the Vena Cava. This is known as the Cervicothoracic Sign. ?, ?? C. Pulmonary trunk. Structures Passing Through Diaphragm Mnemonic. Which of the following are the two largest veins of the systemic circuit? c. right atrium. ???????????. ?????? ?????? ?????. Other structures passing between the thorax and the abdomen, through the diaphragm or posterior to it, are shown in Fig. This is the opening for the inferior vena cava, the vena caval foramen. 1 Write vertebral level of the following. ?????? Which blood vessel does not belong in the group? Bird watchers in Barrie provide cedar waxwings with seeds at birdfeeders during winter months. Aortic hiatus (T12): . ?? ?????? ???????? c. hepatic portal vein. 0.5 - 0.75 inches (12 - 19 mm) in length and is the section of the urethra that passes through the male urogenital diaphragm. ? Which of the following vessels drains blood from the stomach, small intestines, and two-thirds of the large intestine? d. inferior vena cava. B. ????! The diaphragm is located at the inferior-most aspect of the ribcage, filling the inferior thoracic aperture. ???????????? ????????? The crura which blend with the anterior longitudinal ligament of the vertebral column. ??????? Figure 1-2 Cervicoaxillary canal and the structures that traverse this opening. ??????? ? part of the urethra that passes through the urogenital diaphragm (sphincter urethrae muscle and perineal membrane) female: membranous urethra connects the urinary bladder to the external urethral orifice at the . A. esophagus B. larynx C. nasal cavity D. nasopharynx E. oropharynx 29. Anterior interventricular artery Aorta Circumflex Artery Inferior vena cava Pulmonary trunks Pulmonary veins Right coronary artery Superior vena cava, The anterior intercostal is a direct branch off which artery? ??????? What sort of relation? Esophagus, a hollow tube that connects the throat to the stomach. ? A. Contents. A 50 year old man suffering from carcinoma of prostate showed areas of sclerosis and collapse of T10 and T11 vertebrae in X-ray.The spread of this cancer to the above vertebrae was most probably through: . Carotid body tumor. ???????? A) iliac vein B) inferior vena cava C) femoral vein D) popliteal vein E) pulmonary vein, The _________ is the part of the descending aorta that extends from the diaphragm to the common iliac arteries. ????? Appears as a double-domed shaped structure which separates the thoracic cavity from the abdominal cavity, Slightly higher than the left dome, extending to approximately the 5th rib, Usually extends to approximately the 5th intercostal space, Slightly indented region found between the 2 domes, Serves as the primary muscle of inspiration, Multiple named regions located peripherally which represent the origins of the diaphragm, Diaphragmatic crura of the muscular portion, Muscular slips which anchor the diaphragm to the lumbar vertebrae and are associated with the formation of two passageways between the thorax and the abdomen, Much larger and longer than the left crus, it arises from the bodies of L1-L3, Opening in the diaphragm formed by the looping of the right crus, Smaller and shorter than the right crus, it arises from the bodies of L1-L2, Connective tissue slip which arches over the body of approximately T11 and join the 2 crura, NOT an opening in the diaphragm, but rather a gap between the median arcuate ligament and the body of T11, Connective tissue portions of the diaphragm, Includes a broad central area and multiple tendinous slips, Central tendon of the connective tissue portion of the diaphragm, Sheet like structure which represents the main connective tissue portion of the diaphragm, Allow passage of structures between the thoracic and abdominal cavities, Opening in the central tendon of the diaphragm at approximately vertebral level T8/T9 to the right of the median plane, Passes through either the canal foramen or through the central tendon, just lateral to the canal foramen, Passes through the muscular portion of the diaphragm just anterior to left portion of the central tendon, Only the "central regions" of the diaphragm move during contraction/relaxation, Causes the domes to descend, compressing abdominal viscera and increasing the volume of the thoracic cavity (in the vertical dimension) resulting in inspiration, Contraction lowers intra-thoracic pressure and increases intra-abdominal pressure, thus creating venous return to the heart, Allows the domes to ascent to their former positions, decreasing the volume of the thoracic cavity (in the vertical dimension) resulting in expiration, Receives blood supply/drainage on both its superior and inferior surfaces, 1. pericardiacophrenic arteries - small vessels which arise from the internal thoracic arteries and supply the superior surface of the diaphragm, travel with the phrenic nerves, Phrenic nerves - travel in fibrous pericardium to reach the diaphragm, pierce it, and branch on its inferior surface, Accomplished by: phrenic nerves, lower intercostal nerves, and subcostal nerves, David N. Shier, Jackie L. Butler, Ricki Lewis, Andrew Russo, Cinnamon VanPutte, Jennifer Regan, Philip Tate, Rod Seeley, Trent Stephens. ???????? (2)Oesophageal hiatus: oesophagus, vagal trunks (T8 in the right crus) (3) Aortic hiatus: abdominal aorta, thoracic duct, azygos vein. The main vessel that carries deoxygenated blood from the upper part of the body back to the heart is: a. superior vena cava. ???????? The diaphragm separates the abdominal and thoracic cavities but does allow certain structures to pass through via its three openings: The inferior vena cava passes through the diaphragm at the vena caval foramen. ???? There are several structures that pierced through the diaphragm, including: left phrenic nerve pierce through the central tendon, greater, lesser, and least thoracic splanchnic nerves pierced through bilateral crura, and lymphatic vessels that pierced throughout the diaphragam, especially behind the diaphragm. ?????? When the diaphragm relaxes, the lungs are able to exhale and the thoracic cavity space contracts. Order the blood vessels as blood would pass through them, coming from the left ventricle and returning to the right atrium. Aorta is bordered by the median arcuate ligament, thus, the aorta passes behind the diaphragm, not through it (does not move during inspiration). 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