DORSUM OF THE FOOT

Question 1

the skin of the dorsal foot is thin or thick compared to the skin of the plantar heel and averages how many mm?

Answer 1

thin

0.069mm

Question 2

the dorsum of the foot has a thin or thick subcutaneous layer that helps to protect the soft tissue structures?

Answer 2

thin subcutaneous layer

Question 3

how many intrinsic muscles of the foot are there? parts?

where are the origins and insertions located?

Answer 3

1

2

also in the foot

Question 4

the tendons of the extrinsic muscles are in this anatomic position to the bellies of the intrinsic muscle?

Answer 4

superficial or dorsal

Question 5

where does the muscle of the dorsum of the foot receive its innervation and arterial supply from?

Answer 5

lateral terminal branch of the deep peroneal nerve

lateral tarsal artery

Question 6

what is the action of the muscles of the dorsum of the foot?

Answer 6

dorsiflex toes 1-4

Question 7

• a small muscle located at the dorsolateral aspect of the foot

variations?

Answer 7

Extensor Digitorum Brevis Muscle

• an additional tendon to the 5th toe (rare)
• fewer than 3 tendons

Question 8

• distinct medial belly and tendon of the extensor digitorum brevis muscle
• tendon is often palpable and sometimes visible over the forefoot during contraction

Answer 8

Extensor Hallucis Brevis Muscle