Popliteal Fossa & Posterior Leg Flashcards

1
Q

location of popliteal fossa?

A

posterior to knee joint

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2
Q

relation of popliteal artery to popliteal vein?

A

artery lies posterior to vein

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3
Q

which 3 muscles form the superior boundaries of the popliteal fossa?

A

semimembranosus, semitendinosus, biceps femoris

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4
Q

which muscles form the inferior boundaries of the popliteal fossa?

A

medial head of gastrocnemius, lateral head of gastrocnemius and plantaris

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5
Q

name 6 contents of the popliteal fossa?

A

fat, popliteal a. and v., tibial nerve, common fibular nerve, popliteal lymph nodes and vessels

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6
Q

where does the popliteal emerge?

A

from the adductor hiatus as a continuation of the femoral artery

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7
Q

how are posterior leg muscles divided?

A

superficial and deep

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8
Q

how many heads does the gastrocnemius m. have?

A

2

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9
Q

gastrocnemius - innervation?

A

tibial nerve

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10
Q

plantaris - action?

A

plantarflexes ankle and flexes knee

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11
Q

what is the relationship between the achilles tendon and gastrocnemius?

A

The achilles tendon is the strong terminal attachment of gastrocnemius, passing down to insert onto the posterior aspect of the calcaneus bone

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12
Q

name 4 muscles of the deep, posterior compartment of the leg?

A

popliteus, flexor hallucis longus, tibialis posterior, flexor digitorum longus

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13
Q

how do the deep muscles (except popliteus) enter the foot and what covers them?

A

they pass the calcaneus, posterior to medial malleolus, covered in flexor retinaculum

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14
Q

action of deep posterior muscles?

A

flex toes and/or ankle

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15
Q

which nerve and vessel accompany the 3 tendons to the foot?

A

tibial nerve and posterior tibial artery

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16
Q

which nerve innervates all muscles in posterior compartment of leg?

A

tibial nerve

17
Q

which branch of popliteal artery supplies the posterior compt of leg?

A

posterior tibial artery