661 knee muscles

• knee extension

• main stabilizer/anti gravity of the knee

quadriceps function

femoral nerve

innervation of quads

femoral nerve, femoral artery, femoral vein

femoral triangle

two joint muscles

- knee flexion and hip extension

hamstrings function

sciatic nerve

hamstrings innervation

medial and lateral

Gastrocnemius heads

ankle plantar flexion

Gastrocnemius function

tibial nerve

innervation of gastrocnemius

internal rotation of tibia

(unlocks the knee)

popliteus function

tibial nerve

innervation of popliteus

semitendinous, gracilis, and sartorius tendons

pes anserinus

weak knee flexor

flexes, ERs, ABDs, the hip

sartorius function

femoral nerve

innervation of the sartorius

hip ADD = bring to midline

gracilis function

obturator nerve

innervation of gracilis

- tibial nerve

- popliteal vein

- popliteal artery

what is found in the popliteal fossa

in the outer 1/3

meniscal blood supply

middle geniculate artery

blood supply to the cruciates

POPITEAL ARTERY and moves down the back of knee to tibial artery

femoral artery comes into the femoral triangle, down the ADductor canal, once it disappears into hiatus it changes name to

1. joint capsule

2. CLS

3. portion of the menisci

genicular arteries off of the popliteal artery and supply:

red

• good blood supply

• repair is necessary bc of this

white

no blood supply