Foot muscles

Question 1

3 muscles of the 1st layer ?

Answer 1

Abductor hallucis, abductor digiti minimi, flexor digitorum b.

Question 2

Origin, insertion, function and innervation of abductor hallucis brevis ?

Answer 2

O: Medial process of the tuber calcanei, flexor retinaculum, plantar aponeurosis
I: Proximal plalanx of the hallux.
F: Abduction of the hallux, plantar flexion, keeping the foot arch (prevention of pes plantus)
N: medial plantar n.

Question 3

Origin, insertion, function and innervation of m. abductor digiti minimi

Answer 3

O: Lateral process of the tuber calcanei, tuberosity of the 5th metatarsal
I: Proximal phalanx of the digitus minimus
F: Abduction, flexion, arch
N: lateral plantar n.

Question 4

Origin, insertion, function and innervation of flaxor digitorum brevis?

Answer 4

O: undersurface of tuber calcanei, proximal part of the plantar aponeurosis.
I: middle phalanges of 2-5 fingers, they terminate as 2 branches to each side of the phalanx, PERFORATED MUSCLE
F: f of the toes
N: Medial plantar nerve

Question 5

Structures of the 2nd layer?

Answer 5

Tendon of f. hallucis + flexof digitorum longus (plantar chiasm)
Quadratus plantae m.
1-4 lumbrical muscles

Question 6

Origin, insertion, function and innervation of quadratus plantae?

Answer 6

O: lateral and medial margins of plantar surface of the calcaneus
I: Lateral margin of flexor digitorum longus
N: lateral plantar n.

Question 7

Origin, insertion, function and innervation of 4 lumbrical muscles?

Answer 7

O: Medial sides of the tendonds of m. flexor digitorum longus
I: proximal phalanges from 2nd fo 5th toe
F: palmar flexion of the toes, tension of the plantar region
N: 1st 2nd 3rd - MEDIAL plantar; 4th - LATERAL plantar

Question 8

Name the structures of the 3rd layer

Answer 8

Flexor hallucis brevis
Flexor digiti minimi
Opponens digiti minimi
Adductor hallucis