ankle

Question 1

what is the function, origin and insertion of the extensor digitorum brevis

Answer 1

function - extends digits 2-4
origin - dorsal and lateral surface of the calcaneus
insertion- lateral sides of the extensor digitorum longus tendons to digits 2-4

Question 2

what is the function, origin and insertion of the extensor hallucis brevis

Answer 2

function- extension of digit 1 (big toe)
origin - dorsal portion of the calcaneus
insertion - dorsal surface of the base of the proximal phalanx of digit 1

Question 3

what is the function, origin and insertion of the abductor hallucis

Answer 3

function- abduction and flexion of digit 1
origin- flexor retinaculum, medial process of the calcaneal tuberosity, and the plantar aponeurosis
insertion- tibial (medial) side of the base of the proximal phalanx of digit 1

Question 4

what is the function, origin and insertion of the flexor digitorum brevis

Answer 4

function - flexes digit 2-5
origin - medial process of the calcaneal tuberosity, plantar aponeurosis
insertion - lateral surfaces of middle phalanx of digits 2- 5 via slips of tendon

Question 5

what is the function, origin and insertion of the abductor digit minimi

Answer 5

function - abducts and flexes the 5th digit (bby toe)
origin - primarily from the lateral process of the calcaneal tuberosity and the plantar aponeurosis
insertion - lateral (fibular side of the proximal phalanx for the 5th digit

Question 6

what is the function, origin and insertion of the quadratus plantae

Answer 6

function - flexion of the toes, works w flexor digitorum longus to push toes downward
origin - two slips via the medial and lateral side of the calcaneus
insertion - the two portions join and end in a flattened band at the tendon of the flexor digitorum longus

Question 7

what is the function, origin and insertion of the lumbrical muscles

Answer 7

function - flexes the metatarsophalangeal (MTP) joints, and extends the proximal interphalangeal (PIP) joints, and the distal interphalangeal (DIP)joints
origin - tendons of the flexor digitorum longus
insertion - dorsal surface of the proximal phalanges (2-4) and the expansions of the tendons of the extensor digitorum longus

Question 8

what is the function, origin and insertion of the flexor hallucis brevis

Answer 8

function - flexes the Metatarsophalangeal of digit 1
origin - plantar surface of the lateral cuneiform and cuboid bones
insertion - two tendons into the proximal phalanx of digit 1

Question 9

what is the function, origin and insertion of the adductor hallucis (oblique head)

Answer 9

function - adducts digit 1
origin - 2nd, 3rd, and 4th, metatarsals and the sheath of the tendon of the fibularis longus
insertion - base of proximal phalanx of digit 1 on the lateral side

Question 10

what is the function, origin and insertion of the adductor hallucis (transverse head)

Answer 10

function - adducts digit 1
origin - plantar metatarsophalangeal ligaments of the 3rd, 4th, 5th digit
insertion - lateral side of digit 1

Question 11

what is the function, origin and insertion of the flexor digit minimi brevis

Answer 11

function - flexes the metatarsophalangeal joint of the 5th toe
origin - base of the 5th metatarsal bone and the sheath of the fibularis longus
insertion - lateral side of the base of the first phalanx of the 5th toe

Question 12

what is the function, origin and insertion of the dorsal interossei

Answer 12

function - flexion of the MTP of digits 2-4, extension of the PIP and DIP joints of digits 2-4
origin - adjacent sides of the two metatarsal bones on either side of it
insertion - bases of the proximal phalanges of digits 2- 4 and into the aponeurosis of the tendons of the extensor digitorum longus