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Lecture 23
Blood Vessels
33
Anatomy
Undergraduate 2
10/31/2010

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Term
blood vessels transport...
Definition
-oxygen
-nutrients
-waste
-hormones
Term
general structure of blood vessels
Definition
-tubular structure containing a lumen (opening)surrounded by walls composed of layers (tunics)
Term
tunica intima
Definition
-inner layer "endothelium"
-composed of simple squamous epithelium
Term
tunica media
Definition
-middle layer
-composed of smooth muscle
Term
tunica externa
Definition
-outer layer
-composed of connective tissue (collagen)
Term
vaso vasorum
Definition
-vessels of vessels
-supply vessel walls
Term
vaso vasorum
Definition
-vessels of vessels
-supply vessel walls
Term
arteries
Definition
-3 tunics
-thick tunica media
-elastic fibers in wall
Term
arterioles
Definition
-3 tunics
-tunica media regulates blood flow to capillaries
Term
capillaries
Definition
-endothelium only
-very thin permeable walls
Term
venules
Definition
-3 tunics
-very thin
Term
veins
Definition
-3 tunics
-fewer smooth muscle than arteries
-larger lumen
-contain "valves" to direct blood flow
Term
sympathetic stimulation of blood vessels
Definition
-constricts blood vessels of abdominal viscera (most vessels)
-dilates blood vessels of heart and skeletal muscle
-accomplished by acting on smooth muscle of tunica media
Term
aortic arch
Definition
-supplies brachiocephalic and right/left coronaries
Term
brachiocephalic
Definition
-supplies right subclavian and right common carotid
Term
right subclavian
Definition
supplies vertebral and axillary
Term
right common carotid
Definition
supplies internal and external carotid (face and neck)
Term
axillary
Definition
supplies brachial
Term
brachial
Definition
supplies radial and ulnar
Term
radial and ulnar
Definition
supplies palmer arteries
Term
palmer arteries
Definition
supply digits
Term
abdominal aorta
Definition
-celiac trunk
-superior mesenteric
-inferior mesenteric
-renal and gonadal
-common illiac
Term
celiac trunk
Definition
supplies stomach (gastric), spleen (splenic), liver (hepatic)
Term
superior mesenteric
Definition
supplies intestines
Term
inferior mesenteric
Definition
supplies colon and rectum
Term
common illiac
Definition
supplies internal/external illiac
Term
internal illiac
Definition
supplies pelvis
Term
external illiac
Definition
supplies femoral
Term
femoral
Definition
supplies popliteal
Term
popliteal
Definition
supplies anterior and posterior tibial
Term
anterior tibial
Definition
supplies dorsalis pedis and dorsal/plantar arches
Term
dorsal and plantar arches
Definition
supply digits
Term
posterior tibial
Definition
supplies dorsal/plantar arches
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