anatomy LE part 3
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popliteal artery gives off 2 branches to the:
2 heads of the gastroc
popliteal fossa is bound by:
- bicep femoris
- 2 heads of the gastroc
above the knee the popliteal artery gives off:
below the knee the popliteal artery gives off:
- above: 2 superior Genicular arteries
- below: 2 inferior Genicular arteries
muscle innervations of the obturator nerve:
- adductor longus-brevis obturator externis
- adductor portion of the adductor magnus
- grace super geme
femoral nerve muscle innervations:
iliacus sart rectus vastus pectineus
sciatic nerve distally passes deep to the:
and emerges c/ the:
- bicep femoris
- popliteal vessels @ the popliteal fossa
sciatic nerve branches into:
- tibial division
- peroneal division (common fibular/ peroneal nerve)
tibial division of the sciatic nerve innervates:
peroneal division of the sciatic nerve branches into:
- superficial peroneal nerve
- deep peroneal nerve
superficial peroneal nerve innervates:
peroneal longus and brevis
deep peroneal nerve innervates:
- tibialis anterior
- ext hallicus longus
- ext digitorum longus
what are the bones of the tarsus?
- 7 bones:
- 3 cuneiforms
movement of the foot up:
movement of the foot down:
- up; DORSI flexion
- down: plantar flexion
dorsi and plantar flexion occur at ( same/ separate) joint locations?
separate joint locations!
what type of joint is the distal tibio-fibular joint?
what type of joint is the proximal tibio-fibular joint?
protecting ends of the articulations:
medial and lateral malleolus
articular surface for the ankle joint is a broad notch formed by:
curved undersurface of the tibia & the inner surfaces of the medial malleolus & lateral malleolus
talus articulates with the:
tibia and fibula
ligaments of the ankle joint:
- posterior talo-fibular ligament
- deltoid ligament
- anterior talo-fibular ligament
the ankle joint capsule is (loose/ tight) in front and back.
what does this allow for?
- allows for a full range of dorsi and plantar flexion
where is the subtalar joint located?
bwtn the talus and the calcaneus
where is the sustentaculum tali?
- visible on the medial view of the foot
- a prominence off the calcaneus
where is the talo-calcaneo-navicular joint (TCN joint) located?
- where the talus, calcaneus, and the navicular bones meet
- "attaches from the calcaneus to the navicular bone"
eversion and inversion of the foot occur at which joint?
- subtalar joint and
- TCN joint
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