Branches of aorta

• 1 Subclavian Artery • 2 Axilla: Axillary Artery • 2.1 Clinical Relevance: Axillary Artery Aneurysm • 3 Upper Arm: Brachial Artery • 3.1 Clinical Relevance: Occlusion or Laceration of the Brachial Artery • 4 Forearm: Radial and Ulnar Arteries • 5 Hand: Superficial and Deep Palmar Arches The arterial supply to the upper limb is delivered via five main vessels (proximal to distal): • Subclavian artery • Axillary artery • Brachial artery • Radial artery • Ulnar artery In this article, we shall look at the anatomy of the arteries of the upper limb – their anatomical course, branches and clinical correlations. Subclavian Artery The arterial supply to the upper limb begins as the subclavian artery. On the right, the subclavian artery arises from the brachiocephalic trunk. On the left, it branches directly from the arch of aorta. The subclavian artery travels laterally towards the axilla. It can be divided into three parts based on its position relative to the anterior scalene muscle: • First part – origin of the subclavian artery to the medial border of the anterior scalene. • Second part – posterior to the anterior scalene. • Third part – lateral border of anterior scalene to the lateral border of the first rib. At the lateral border of the first rib, the subclavian artery enters the axilla – and is renamed the axillary artery. Axilla: Axillary Artery The axillary artery lies deep to the pectoralis minor and is enclosed in the axillary sheath (a fibrous layer that covers the a...

Article: • • • • • • Images: • Summary • origin: continuation of descending • course: descends anterior and slightly to the left of the lumbar vertebral bodies • branches (unpaired) • • • • branches (paired) • • • • • • termination: bifurcates into right and left • key relationships • posterior to the median arcuate ligament between two crura of diaphragm • anterior and slightly to the left of the lumbar vertebral bodies • • crossed anteriorly by the • crossed anteriorly by the left renal vein, uncinate process of the pancreas and 3 rd part of the Gross anatomy Origin It is a continuation of descending Course It descends caudally in the Between the celiac and superior mesenteric artery origins, it is crossed anteriorly by the rd part of the Termination It eventually terminates at the L4 level by bifurcating into right and left Branches Branches of the abdominal aorta can be thought of as belonging to a number of groups. Single ventral branches (to the gut and related viscera) • • • Paired branches to other viscera • • • Paired branches to abdominal wall • • four paired Single parietal branches • Variant anatomy • variable level of bifurcation • right-sided aorta • • sinuous course • • direct branches (e.g. splenic, hepatic, Related pathology • • abdominal aortic stenosis/occlusion: • 2. Bergman R, Afifi A, Miyauchi R. Anatomy Atlases – Abdominal Aorta. Cited Feb 2017. http://www.anatomyatlases.org/AnatomicVariants/Cardiovascular/Text/Arteries/AortaAbdominal.shtml • 3. Chum...

\( \newcommand\) • • • The thoracic aorta is the section of the aorta that travels through the thoracic cavity to carry blood to the head, neck, thorax and arms. Key Points • The thoracic aorta is contained in the posterior mediastinal cavity, begins at the 4th thoracic vertebra where it is continuous with the aortic arch, and ends in front of the lower border of the twelfth thoracic vertebra. • Branches from the thoracic aorta include the bronchial arteries, the mediastinal arteries, the esophageal arteries, the pericardial arteries, and the superior phrenic artery. • The thoracic aorta and the esophagus run parallel for most of its length, with the esophagus lying on the right side of the aorta. At the lower part of the thorax, the esophagus is placed in front of the aorta, situated on its left side close to the diaphragm.. Key Terms • mediastinal cavity: The central compartment of the thoracic cavity. It contains the heart, the great vessels of the heart, the esophagus, the trachea, the phrenic nerve, the cardiac nerve, the thoracic duct, the thymus, and the lymph nodes of the central chest. • Thoracic Aorta: Contained in the posterior mediastinal cavity, it begins at the lower border of the fourth thoracic vertebra where it is continuous with the aortic arch, and ends in front of the lower border of the twelfth thoracic vertebra, at the aortic hiatus in the diaphragm where it becomes the abdominal aorta. Thoracic aorta: The aorta, highlighted in red, includes the thora...

Function What is the purpose of the ascending aorta? The aorta carries oxygenated blood from the left ventricle (one of your heart’s four chambers) to the rest of your body. The ascending aorta is the first part closest to your heart. This portion has two small branches. These are the major The aorta is the pipe that helps oxygenated blood get from your heart to every part of your body — from your brain to your digestive tract. Anatomy Where is the ascending aorta located? The ascending aorta sits atop the left ventricle on the left side of your heart. It extends up and over the heart. It’s located in your chest right behind the “breastbone” (sternum). What does the ascending aorta look like? The entire aorta looks a bit like a cane. The ascending aorta is the first and shortest part of the aorta. It moves in an upward direction until it becomes the aortic arch, which would be the cane’s handle. From the arch, the aorta moves downward through the chest and abdomen. What is the normal size of the ascending aorta? The ascending aorta is about 5 to 8 centimeters (or close to 2 to 3 inches) long. It’s about 3 to 4 centimeters wide. The aorta gradually narrows as it moves down through the chest. What are the parts of the ascending aorta? The entire aorta divides into two parts: the thoracic aorta and the abdominal aorta. The ascending aorta, along with the aortic arch and the descending aorta, makes up the thoracic aorta. The ascending aorta begins right after the left ventricl...

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Structure By the time the aorta reaches the abdomen, it has tapered to a width of about 2 centimeters wide, making it the largest artery in the abdominal cavity. Like other blood vessels, the wall of the abdominal aorta is made up of three distinct tissue layers: the thin inner layer (tunica intima), the thick middle layer (tunica media), and the thin outer layer (tunica adventitia). that have the ability to constrict and relax as needed to adjust for high and low blood pressures. The abdominal aorta gets wider and less flexible as we get older. Location The abdominal aorta, which lies slightly left of the midline of the body, starts at the diaphragm and ends just above the pelvis. From there, it splits into two arteries, one for each leg. These are called the iliac arteries. • Celiac trunk supplies blood to the abdominal esophagus, stomach, liver, pancreas, gallbladder, and spleen • Middle suprarenal arteries supply blood to the suprarenal glands that lie on top of the kidneys • Superior mesenteric artery supplies blood to the small intestine • Inferior mesenteric artery supply blood to the large intestine • Median sacral artery supplies blood to the lumbar vertebrae and the sacrum • Renal arteries provide blood to the kidneys • Gondal (testicular and ovarian) arteries supply blood to either the testes in males or the ovaries in females • Lumbar arteries supply blood to the posterior abdominal wall and the spinal cord • Common iliac and its branches supply blood to the le...

• العربية • Azərbaycanca • বাংলা • Bosanski • Dansk • Deutsch • ދިވެހިބަސް • Eesti • Español • فارسی • 한국어 • Հայերեն • Hrvatski • Bahasa Indonesia • Italiano • कॉशुर / کٲشُر • Македонски • Nederlands • 日本語 • Português • Română • Русский • Shqip • Srpskohrvatski / српскохрватски • ไทย • Tiếng Việt • 中文 [ The ascending aorta ( AAo) Structure [ ] It passes obliquely upward, forward, and to the right, in the direction of the heart's axis, as high as the upper border of the second right Components [ ] The aortic root is the portion of the aorta beginning at the aortic annulus and extending to the sinotubular junction. It is sometimes regarded as a part of the ascending aorta, Between each commissure of the The sinotubular junction is the point in the ascending aorta where the aortic sinuses end and the aorta becomes a tubular structure. Size [ ] A Relations [ ] At the union of the ascending aorta with the This dilatation is termed the bulb of the The ascending aorta is contained within the The ascending aorta is covered at its commencement by the trunk of the On the right side, it is in relation with the Branches [ ] The only branches of the ascending aorta are the two Clinical significance [ ] Porcelain aorta is extensive Images [ ] • • Logan, Carolynn M.; Rice, M. Katherine (1987). Logan's Medical and Scientific Abbreviations. Philadelphia: 0-397-54589-4. • Nataf, P (2006). Heart. 92 (9): 1345–1352. • Freeman, Laura A.; Young, Phillip M.; Foley, Thomas A.; Williamson, Eric E....