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28 Cards in this Set
- Front
- Back
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blood vessel function
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carry blood
exchange nutrients, waste products, gases within tissues transport substances regulate blood pressure direct blood flow to tissues |
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what do arteries do
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carrier blood away from heart
thick with a lot of elastic |
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what do veins do
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carry blood toward heart
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where do capillaries exchange occur
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exchange occurs between blood and tissue fluids
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route of blood flow 2
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heart- large artery - med. artery- small artery- arterioles- capillaries- venues- small veins- med. veins- large veins- heart
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tunica intima
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intermost layer
simple squamous |
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tunica media
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middle layer
smooth muscle with elastic and collagen |
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tunica adventitia (externa)
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outermost layer
connective tissure |
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where is most blood in the body found
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veins
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elastic arteries
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largest in diameter
thickest walls |
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muscular arteries
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medium to small size
thick diameter |
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systemic circuit
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heart to body (aorta) back to heart
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pulmonary circuit
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heart to lung, back to heart
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coronary circuit
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heart to myocardium, back to heart
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pulmonary circulation
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blood vessels carry blood from right ventricle to lungs and back from left atrium of the heart
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pulmonary trunk
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blood pump from the right ventricle towards lung
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pulmonary veins
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exit lungs and carry c02 rich blood to left atrium
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ascending aorta
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passes superiorly from left ventricle
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aortic arch
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3 major arteries which carry blood to head and upper limbs
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descending aorta
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extends through thorax and abdomen to pelvis
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thoracic aorta
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part of descending aorta that extends through thorax to diaphragm
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abdominal aorta
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descending aorta that extends from diaphragm where it divides at common iliac arteries
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branches of aortic arch
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brachiocephalic artery
left common carotid artery left subclavian artery |
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brachiocephalic artery
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first branch off aortic arch
supplies blood to right side of head and neck |
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left common carotid artery
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2nd branch off aortic arch
supplies blood to the left side of the head and neck |
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left subclavian artery
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3rd branch off aortic arch
supplies blood to left upper limbs |
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right common carotid artery
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branches off brachiocephalic artery
supplies blood to the right side of the head and neck |
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right subclavian artery
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branches off bracihiocephalic artery
supplies blood to right upper limbs |
