Anatomy: Popliteal Fossa and Posterior Leg

Question 1

name the boundaries of the popliteal fossa

Answer 1

biceps femoris

semimembranous

gastrocemium - medial and lateral heads

Question 2

what does the small saphenous vein do in the popliteal fossa

Answer 2

ends by passing through the deep (popliteal) fascia in the medial plane of the limb to drain into the popliteal vein

Question 3

name the popliteal contents medial to lateral

Answer 3

popliteal artery

popliteal vein

tibia nerve

common fibular nerve

Question 4

describe the deep veins of the leg starting from medial and lateral plantar veins

Answer 4

medial and lateral plantar veins

posterior tibial and fibular veins

popliteal vein

(adductor canal) - femoral vein

external iliac vein

Question 5

where does the popliteal vein become the femoral vein

Answer 5

when it enters the thigh through the adductor canal

Question 6

where are popliteal lymph nodes located

Answer 6

along popliteal vein in the popliteal fossa

Question 7

what does the medial sural cutaenous nerve arise from

Answer 7

tibial nerve

Question 8

what does the lateral sural cutaenous nerve arise from

Answer 8

common fibular nerve

Question 9

how do the lateral and medial sural cutaenous nerves communicate with each other

Answer 9

sural communicating branch

Question 10

what do the sural nerves supply

Answer 10

skin and fascia on posterolateral aspect of the leg and foot

Question 11

what is the common fibular nerve vulnerable to

Answer 11

compression injury against the neck of the fibula

Question 12

superficial muscels of posterior leg

Answer 12

Question 13

deep muscles of the posterior leg

Answer 13

Question 14

what do deep muscles of the posterior leg do

Answer 14

flexors o toe and plantarflexors of ankle

Question 15

what do superficial muscles of the posterior leg do

Answer 15

plantar flex the ankle

Question 16

functio of tibialis posterior and anterior

Answer 16

invert foot

Question 17

what are the deep and superifical muscles of the posterior leg supplied by

Answer 17

tibial nerve

Question 18

attachments of medial and lateral gastrocnemius heads

Answer 18

proximally: lateral head to lateral femoral condyle and medial head to medial femoral condyle
distally: calcaneal tuberosity on calaneus via Achilles tendon

Question 19

what 2 muscles combine to form the achilles tendon

Answer 19

gastrocnemius and soleus

Question 20

attachments of the soleus

Answer 20

proximally: neck of fibula and soleal line of tibia
distally: calcaenus via achilles tendon

Question 21

ankle jerk reflex

Answer 21

calcaneal tendon struck (soleus and gastrocnemius) and foot should plantarflex

tests tibial nerve (S1-S2)

Question 22

what does the popliteal artery divide into immediately distal to the popliteal fossa

Answer 22

posterior and anterior tibial artery

Question 23

describe the course of the anterior tibial artery

Answer 23

pierces the interosseous membrane between tibia and fibula to supply anterior comaprtment of leg

Question 24

what does the posterior tibial artery divide into on the plantar surface of the foot

Answer 24

medial and lateral plantar arteries

Question 25

what does the anterior tibular artery become in the foot

Answer 25

dorsalis pedis artery

Question 26

where does teh posterior tibial artery pass out of the posterior compartment of leg in relation to medial malleolus and flexor retinaculum

Answer 26

posterior to medial malleolus and deep to flexor retinaculum

Question 27

what branches from the posterior tibial artery in the proximal half of the posterior compartment of leg

Answer 27

fibular artery

Question 28

what does the fibular artery supply

Answer 28

muscles in lateral compartmnet of leg and adjacent muscles in posterior compartment

Question 29

the adductor hiatus is an opening in which muscle

Answer 29

adductor magnus