U1 day 4 Flashcards
Lumbosacral Plexus
Ventral rami L1-S4, these supply motor sensory and autonomics to inferolateral skin, abdomen wall, perineum, pelvic viscera, entire lower limb.
Blood supply (aortas) are
high pressure and low volume
Venus return (veins) are
low pressure, high volume
Collateral Circulation
Other path ways for blood to travel, often in aortas, to extremities to compensate for bending limbs. can be Aorta to Aorta, Aorta to vein, or vein to vein.
Aorta from L4-L5 splits into what
Left common iliac artery, and right common iliac artery
Right common iliac artery splits into what
Internal iliac artery and external iliac artery
external iliac artery becomes this when passing under the inguinal ligament
Femoral artery
Femoral artery has a branch in the femoral triangle called
deep femoral artery
When femoral artery passes through the adductor hiatus it becomes
Popliteal artery
Popliteal artery spits into
anterior tibial artery, and posterior tibial artery
Anterior tibial artery becomes what after passing the ankel?
Dorsal pedis artery, then arcuate artery, then metatarsal artery, then digital artery as it works down the foot.
posterior tibial artery splits into what
fibular artery, lateral plantar artery, and medial plantar artery
lateral plantar artery becomes what
plantar arch artery, then metatarsal artery, then digital artery.
Venus return
two types, deep set veins, and superficial veins. one way valves only
Superficial veins
drain superficial facia and skin, includes greater and lesser sanovous veins
