Blood vessels/arteries
Terms
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- dorsalis pedis
- fed by anterior tibial artery at ankle; feeds middle of dorsal foot. palpatable for a pulse.
- deep veins of lower limb
- drain the lower limb and return the blood back to the heart. named according to accompanying arteries
- superficial veins of the lower limb
- greater and lesser saphenous veins
- greater saphenous vein
- runs up the medial leg and thigh to join the femoral nerve, which then runs deep to send the blood back to the heart!
- lesser saphenous vein
- joins the popliteal vein in the middle of the posterior leg
- peroneal artery
- a lateral branch of the posterior tibial artery, this branches into the medial and lateral plantar arteries.
- the arteries of lower limb begin when:
- the external iliac artery crosses the inguinal ligament and becomes the femoral artery in the femoral triangle
- anterior tibial artery
- branch of popliteal artery. passes between fibula/tibia to anterior leg. at ankle becomes dorsalis pedis
- posterior tibial artery
- branch from popliteal artery. feeds posterior muscles of leg, we focus on the lateral branch, the peroneal artery.
- Lumen
- the hole, open part of vessel
- tunic intima
- internal layer of the blood vessel; composed of endothelial cells with an elastic membrane
- tunica media
- middle layer of the lining of the blood vessel; composed of smooth muscle, elastic tissue, and concentrically organized
- tunica externa (adventitia)
- external, outermost layer of the blood vessel; composed of white, fibrous connective tissue
- arteries
- similar in structure to arteries, but thicker, more musclular