Lower Limb Anatomy

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superficial fibular nerve

L4-S2 branches off common fibular nerve

tibial nerve

L4-S3

common fibular nerve

Level L4-S4

sciatic nerve

Level L4-S4 innervates all muscles of the posterior thigh

lateral condyle

Located on outside part of knee Bigger than medial condyle

metarsal bones

foot bones 5 metatarsal bones

calcaneus

heel bone

femoral nerve

inntervates muscles of anterior compartment Level L2-L4

patella

large sesamoid bone forms the kneecap

profunda femoris artery

largest branch of femoral artery

piriformis

laterally rotates and abducts thigh

obturator internus

laterally rotates thigh

obturator nerve

level L2-L4

linea aspera femur

line going down femur

great saphenous vein

longest vein in body originate at dorsal venous arch drains into femoral vein

femoral vein

major vein of the thigh that receives blood from the deep femoral and great saphenous vein

lateral malleolus

process forming the outer ankle

Greater & lesser trochanter

sites for muscle attachment

dorsalis pedis artery

supplies blood to foot

fibular artery

supplies blood to lateral compartment of leg

posterior tibial artery

supplies blood to posterior compartment of leg

anterior tibial artery

supplies blood to the anterior compartment of leg

inferior gluteal artery

supplies gluteus maximus

femoral artery

the major artery supplying the leg

tibial plateau

the top, flat portion of the tibia

Femur

- Strongest bone in body - transmit weight from hip bone to tibia

tarsal bones

- the seven bones of the ankle

sesamoid bones

Allow for increased weight-bearing & leverage Look like little nuts on the toe & finger bones

popliteal artery

Artery that supplies blood to the foot

medial epicondyle

Bigger than lateral epicondyle Attachment site for ligaments of the knee

superior gluteal artery

Blood supply of gluteus medius

tibia

Much bigger than the fibula Medial long bone of leg shin bone

fibula

Much smaller than the tibia Lateral bone of the leg calf bone

medial condyle

Sits on top of tibia to form the tibiofemoral joint Located on inside part of the knee

lateral epicondyle

Smaller than medial epicondyle Attachment site for ligaments of the knee

head of femur

The head always points toward what side it is on So if head points right, then its a right femur Allows for motion in the hip Ball shaped

talus

ankle bone

tibial tuberosity

attachment site for patellar ligament

phalanges

bones of the fingers and toes big toe or thumb only has a proximal and distal phalanx (the rest have proximal, middle, and distal)

Deep fibular nerve

branches off common fibular nerve L4-S2

posterior tibial vein

drain posterior compartment of leg, ankle, and foot

popliteal vein

drains blood into femoral vein


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