Lower Extremity 4th Part

Question 1

Origin of the Flexor Hallucis Longus

Answer 1

Posterior inferior surface of fibula
Inferior Interosseous membrane

Question 2

Insertion of the Flexor Hallucis Longus

Answer 2

Base of distal phalanx of digit 1 (great toe, hallux)

Question 3

Function of the Flexor Hallucis Longus

Answer 3

Flex. of distal phalanx of toe + plantar flex. at talocrural joint + inversion at subtalar joint

Question 4

Origin of the Flexor Hallucis Brevis

Answer 4

Plantar surface of medial and lateral cuneiform and cuboid bone

Question 5

Insertion of the Flexor Hallucis Brevis

Answer 5

Two tendons into the proximal phalanx of digit 1

Question 6

Function of the Flexor Hallucis Brevis

Answer 6

Flex. of toe at metatarsophalangeal joint

Question 7

Origin of the Flexor Digitorum Longus

Answer 7

Posterior surface of tibia

Question 8

Insertion of the Flexor Digitorum Longus

Answer 8

Bases of distal phalanges of digits 2-5

Question 9

Function of the Flexor Digitorum Longus

Answer 9

Flex. of toes at metatarsophalangeal and interphalangeal joints + Plantar flex. at talocrural joint + inversion at subtalar joint

Question 10

Origin of the Flexor Digitorum Brevis

Answer 10

Medial process of the calcaneal tuberosity + plantar aponeurosis

Question 11

Insertion of the Flexor Digitorum Brevis

Answer 11

Middle phalanges of digits 2-5

Question 12

Function of the Flexor Digitorum Brevis

Answer 12

Flex. of toes at metatarsophalangeal joints + supports longitudinal arch of foot

Question 13

Origin of Tibialis Posterior

Answer 13

Interosseous membrane + posterior surface of tibia + superior medial surface of fibula

Question 14

Insertion of Tibialis Posterior

Answer 14

Navicular tuberosity + all cuneiform bones + cuboid + bases of metatarsals 2-4

Question 15

Function of Tibialis Posterior

Answer 15

Plantar flex. at talocrural joint + Inversion at subtalar joint + adduction + support medial longitudinal arch of foot

Question 16

Origin of Fibularis longus

Answer 16

Head and superior lateral surface of fibula

Question 17

Insertion of Fibularis longus

Answer 17

Medial cuneiform and metatarsal bone 1

Question 18

Function of Fibularis Longus

Answer 18

Plantar flex. at talocrural joint + eversion at subtalar joint + support transverse arch of foot

Question 19

Origin of Fibularis Brevis

Answer 19

Lateral inferior surface of fibula

Question 20

Insertion of Fibularis Brevis

Answer 20

5th metatarsal’s tuberosity

Question 21

Function of the Fibularis Brevis

Answer 21

Plantar flex. at talocrural joint + eversion at subtalar joint

Question 22

Origin of the Abductor Hallucis

Answer 22

Medial process of calcaneal tuberosity + flexor retinaculum + plantar aponeurosis

Question 23

Insertion of Abductor Hallucis

Answer 23

Medial base of proximal phalanx of digit 1

Question 24

Function of the Abductor Hallucis

Answer 24

abduction and flex. of toe at metatarsophalangeal joint 1 + supports longitudinal arch of foot

Question 25

Origin of the Adductor Hallucis oblique head + transverse head

Answer 25

Oblique head -> 2nd 3rd and 4th metatarsals
Transverse head -> Plantar metatarsophalangeal lig. of toes 3-5
Deep transverse metatarsal lig. of toes 3-5

Question 26

Insertion of the Adductor Hallucis oblique head +transverse head

Answer 26

Lateral surface of proximal phalanx of digit 1

Question 27

Function of the Adductor Hallucis oblique head + transverse head

Answer 27

Adduction at metatarsophalangeal joint + flex. of digit 1

Question 28

Origin of the Abductor Digiti Minimi

Answer 28

Lateral calcaneal tuberosity + plantar aponeurosis

Question 29

Insertion of the Abductor Digiti Minimi

Answer 29

Base of proximal phalanx of digit 5

Question 30

Function of the Abductor Digiti Minimi

Answer 30

Abduction and Flex. of toe at metatarsophalangeal joint