Foot

Question 1

how many intrinsic muscles are there in the dorsal foot?

Answer 1

2

Question 2

name the 2 intrinsic muscles in the dorsal foot?

Answer 2

extensor digitorum brevis

extensor hallucis brevis

Question 3

what innervates the dorsal intrinsic muscles of the foot?

Answer 3

deep fibular nerve

Question 4

what is the action of extensor digitorum brevis?

Answer 4

aids EDL in extending medial 4 toes at MTP and IP joints

Question 5

what is the action of extensor hallucis brevis?

Answer 5

aids EHL in extending great two at MTP joint

Question 6

how many intrinsic muscles are there in the plantar foot? how many layers are they split over?

Answer 6

10 muscles, 4 layers

Question 7

what innervates the plantar intrinsic muscles?

Answer 7

either medial or lateral plantar nerves, both of which are branches of tibial nerve

Question 8

what is the general action of plantar intrinsic muscles?

Answer 8

act collectively to stabilise arches of foot

act individually to control movement of digits