Foot Muscles: Second Layer of Muscles

Question 1

Quadratus Plantae
(origin)

Answer 1

Medial & lateral sides of plantar surface of calcaneus, distal to tuberosity

Question 2

Quadratus Plantae
(insertion)

Answer 2

Lateral and posterior margin of flexor digitorum longus tendon

Question 3

Quadratus Plantae
(action)

Answer 3

Flexion of toes 2-5 (pulls flexor digitorum longus tendon)

Question 4

Quadratus Plantae
(innervation)

Answer 4

Lateral Plantar Nerve

Question 5

Lumbricals
(origin)

Answer 5

Flexor digitorum longus tendons

Question 6

Lumbricals
(insertion)

Answer 6

Expansions of extensor tendons of toes 2-5

Question 7

Lumbricals
(action)

Answer 7

Flex at the metatarsophalangeal joints (MTP joints)

Question 8

Lumbricals
(innervation)

Answer 8

1-medial plantar nerve, 2-4 lateral plantar nerve