GA 4 posterior thigh and popliteal fossa Flashcards
Posterior thigh muscles
Semitendinosus
O: ischial tuberosity
I: medial surface of superior aspect of tibia (Pes Anserinus)
A: Extend thigh, flex leg (med. rotate)
N: tibial division of sciatic nerve
What is the medial attachment point on superior tibia?
what attaches here?
Semimembranosus
O: Ischial tuberosity
I: Posterior part of medial condyle of tibia
A: extend thigh, flex leg
N: tibial division of sciatic nerve
unique attachment for what hamstring muscle?
Biceps femoris
Long head
O: ischial tuberosity
I: head of the fibula
A: Flex leg, extend thigh
N: tibial division of sciatic nerve
Short head
O: Distal lateral lip of linea aspera (femur)
I: head of the fibula
A: ONly flexed leg
N: common fibular branch of the sciatic
Adductor magnus
Hamstring portion
O: proximally ischial tuberosity
I: distally to adductor tubercle on medial epicondyle of femur
A: extend thigh
N: tibial division of sciatic n
What are the boundaries of the popliteal fossa?
What are the contents of the popliteal fossa? superficial to deep?
Tibial n.
Popliteal vein (lymph nodes and branches)
Popliteal artery and branches
Popliteal artery: branches
Popliteal artery below the knee what happens?
termination
Popliteal vein
Follow the artery just in opposite direction
Popliteal vein moving up through the knee
Nerves in the popliteal fossa
Tibial n. relative to others vessels?
whats its distribution?
common fibular n.
Where does it travel?
Sural n. are made up of what?
- Medial sural cutaneous n.
- sural communicating branch from common fibular n. or lateral sural cutaneous n.
- come together to make sural n.
What does the sural n. run with?
what does it supply?
