11-Cardiovascular System (2) - CARDIOVASCULAR SYSTEM BLOOD VESSELS Dr Wafaa Shunnaq Main arteries of the body Aorta The aorta is the largest artery of

11-Cardiovascular System (2) - CARDIOVASCULAR SYSTEM BLOOD...

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CARDIOVASCULAR SYSTEM: BLOOD VESSELS Dr: Wafaa Shunnaq
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Main arteries of the body
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Aorta The aorta is the largest artery of the body The aorta arise from left ventricle of the heart as ascending aorta. It arches to the left as arch of aorta. Then descends in the thorax as descending or thoracic aorta. It passes through diaphragm to enters the abdominopelvic cavity and becomes abdominal aorta.
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Branches of ascending aorta The only branches of ascending aorta are: 1. Right coronary artery . 2. Left coronary artery.
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Branches of the aortic arch 1. Brachiocephalic trunk (first branch) divides into: Right subclavian artery and right common carotid artery. 2. Left common carotid artery (second branch). 3. Left subclavian artery (third branch).
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Common carotid artery Common carotid artery divides into : 1. External carotid artery , which supplies skin and muscles of the head & neck. 2. Internal carotid artery , which supplies brain
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Arch of aorta
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Branches of the subclavian artery 1. Vertebral artery: supplies part of the brain 2. Axillary artery 3. Brachial artery (continuation of axillary)divides and gives: 4. Radial artery 5. Ulnar artery Supply upper limb
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Branches of the thoracic aorta The thoracic aorta is about 20 cm (8 in.) long and is a continuation of the arch of the aorta. It begins at the level of the intervertebral disc between the fourth and fifth thoracic vertebrae , where it lies to the left of the vertebral column. As it descends, it moves closer to the midline and extends through an opening in the diaphragm (aortic hiatus), at the level of 12 TH THORACIC VERTEBRA (T12).
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  • Fall '16
  • Common carotid artery, thoracic aorta, Subclavian artery, Abdominal aorta

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