2 Intrinsic Muscles - SECOND Layer

Question 1

Quadratus Plantae

Origin
Insertion

Action

Nerve Supply

Answer 1

Origin: Medial and lateral sides of calcaneum

Insertion: Tendon of flexor digitorum longus

Action: Assists flexor digitorum longus in flexing lateral 4 toes

Nerve Supply: Lateral plantar nerve

Question 2

Lumbricals (4)

Origin
Insertion

Action

Nerve Supply

Answer 2

Origin: Tendons of flexor digitorum longus

Insertion: Dorsal extensor expansion; bases of proximal phalanges of lateral four toes

Action: Extends toes at interphalangeal joints

Nerve Supply: First lumbrical medial plantar nerve; remainder lateral plantar nerve

Question 3

NAME THE 2 INTRINSIC MUSCLES OF THE SECOND LAYER

Answer 3

Quadratus Plantae

Lumbricals (4)

Question 4

Origin: Medial and lateral sides of calcaneum

Answer 4

Quadratus Plantae

Question 5

Insertion: Tendon of flexor digitorum longus

Answer 5

Quadratus Plantae

Question 6

Action: Assists flexor digitorum longus in flexing lateral 4 toes

Answer 6

Quadratus Plantae

Question 7

Origin: Tendons of flexor digitorum longus

Answer 7

Lumbricals (4)

Question 8

Insertion: Dorsal extensor expansion; bases of proximal phalanges of lateral four toes

Answer 8

Lumbricals (4)

Question 9

Action: Extends toes at interphalangeal joints

Answer 9

Lumbricals (4)