foot muscles

Question 1

name, origin, insertion, action, layer

Answer 1

extensor digitorum brevis
o: dorsal surface of the calcaneus
i: tendons of the extensor digitorum longus of toes 2-4
a: extends toes 2-4
dorsal region

Question 2

name, origin, insertion, action, layer

Answer 2

extensor hallucis brevis
o: medial to the extensor digitorum brevis on the calcaneus
i: base of the proximal phalanx of the great toe
a: extends the great toe
dorsal region

Question 3

name, origin, insertion, action, layer

Answer 3

dorsal interosseous muscles (4 muscles)
o: both walls of the interosseous spaces
i: base of the proximal phalanges of the 2-4 toes
a: flexion and lateral movements of the toes
central group - deep plane

Question 4

name, origin, insertion, action, layer

Answer 4

plantar interosseuous muscles (3 muscles)
o: medial side of 3-5 metatarsals
i: base of the proximal phalanges of 3-5 toes
a: flexion and medial movement of the toes
plantar region - central group, deep plane

Question 5

name, origin, insertion, action, layer

Answer 5

quadratus plantae
o: medial and lateral surfaces of the calcaneus
i: tendon of the flexor digitorum longus
a: assists in flexing the toes and maintaing the longitudinal plantar arch
plantar region, central group, middle plane

Question 6

name, origin, insertion, action, layer

Answer 6

lumbricals (4 muscles)
o: tendons of the flexor digitorum
i: base of the proximal phalanges of the 2-5 toes
a: f;exion at the metatarsophalangeal joints; adduction of towards the great toe
plantar region, central group, middle plane

Question 7

name, origin, insertion, action, layer

Answer 7

flexor digitorum brevis
o: medial tubercle of calcaneus
i: middle phalanx of toes 2-5
a: finger flexion
plantar region, central group superficial plane

Question 8

name, origin, insertion, action, layer

Answer 8

flexor hallucis brevis
o: cuboid and lateral cuneiform bones
i: proximal phalanx of the big toe through sesamoid bones
a: flexion of the great toe: supports the longitudinal plantar arch
plantar region, medial group, deep plane

Question 9

name, origin, insertion, action, layer

Answer 9

adductor hallucis brevis
o: bases of 2-4 metatarsals transverse head
i: proximal phalanx of the great toe
a: adduction of the great toe
plantar region, medial group, deep plane

Question 10

name, origin, insertion, action, layer

Answer 10

abductor hallucis brevis
o: medial tubercle of the calcaneus
i: proximal phalanx of the big toe
a: abduction of the big toe
plantar region, medial group, superficial plane

Question 11

name, origin, insertion, action, layer

Answer 11

flexor digiti minimi
o: base of the 5th metatarsal and the long plantar ligament
i: base of the proximal phalanx of the 5th toe
a: flexion of the 5th toe
plantar region, lateral group, deep plane

Question 12

name, origin, insertion, action, layer

Answer 12

opponens digiti minimi
o: distal half of the 5th metatarsal
i: base of the proximal phalanx of the 5th toe
a: flexion and opposition of the 5th toe
plantar region, lateral group, deep plane

Question 13

name, origin, insertion, action, layer

Answer 13

abductor digiti minimi
o: underside of the calcaneus
i: lateral side of the proximal phalanx of the 5th toe
a: abduction and flexion of the 5th toe
plantar region, lateral group, superficial plane