Muscles in the Sole of the Foot

Question 0

Main action and innervation of the abductor hallucis?

Answer 0

• Abducts & flexes big toe

- Med. plantar n.

Question 1

Name the 1st layer of muscle in the soles of the foot?

Answer 1

1. Abductor hallucis
2. Flexor digitorum brevis
3. Abductor digiti minimi

Question 2

Main action and innervation of the flexor digitorum brevis?

Answer 2

• Flexes lat. 4 digits

- Med. plantar n.

Question 3

Main action and innervation of the abductor digiti minimi?

Answer 3

• Abducts & flexes 5th digit

- Lat. plantar n.

Question 4

Name the 2nd layer of muscles in the sole of the foot?

Answer 4

1. Quadratus plantae

2. Lumbricals

Question 5

Main action and innervation of the quadratus plantae?

Answer 5

• Flexes lat. 4 digits

- Lat. plantar n.

Question 6

Main action and innervation of the lumbricals?

Answer 6

• Flexes proximal phalanges
• Extends middle & distal phalanges of lat. 4 digits
• Med. & lat. plantar n.

Question 7

Name the 3rd layer of muscles in the sole of the foot?

Answer 7

1. Flexor hallucis brevis
2. Adductor hallucis
3. Flexor digitorum minimi brevis

Question 8

Main action and innervation of the flexor hallucis brevis?

Answer 8

• Flexes prox. phalanx of big toe

- Med. plantar n.

Question 9

Main action and innervation of the adductor hallucis?

Answer 9

• Adducts big toe

- Lat. plantar n.

Question 10

Main action and innervation of the flexor digiti minimi brevis?

Answer 10

• Flexes prox. phalanx of 5th digit

- Lat. plantar n.

Question 11

Name the 4th layer of muscles in the soles of the foot?

Answer 11

1. Plantar interossei (3)

2. Dorsal interossei (4)

Question 12

Main action and innervation of the plantar interossei?

Answer 12

• Adducts digits 2-5
• Flexes metatarsophalangeal joints
• Lat. plantar n.

Question 13

Main action and innervation of the dorsal interossei?

Answer 13

• Abducts digits 2-4
• Flexes metatarsophalangeal joints
• Lat. plantar n.