LOWER LIMB MUSCLES: FOOT

Question 1

Which nerves innervate the fibularis brevis?

Answer 1

superficial fibular nerve

Question 2

Which blood vessels supply the fibularis brevis?

Answer 2

fibular artery from posterior tibial artery

Question 3

Where is the origin of the fibularis brevis?

Answer 3

lower 1/3 of lateral surface of the fibula

Question 4

Where is the insertion of the fibularis brevis?

Answer 4

lateral side of the base of the 5th metatarsal

Question 5

What is the function of the fibularis brevis?

Answer 5

everts and plantar flexes foot and supports the lateral longitudinal arch of the foot

Question 6

Which nerves innervate the fibularis longus?

Answer 6

superficial fibular nerve

Question 7

Which blood vessels supply the fibularis longus?

Answer 7

fibular artery from posterior tibial artery

Question 8

Where is the origin of the fibularis longus?

Answer 8

lateral condyle of tibia head and upper 2/3 of lateral surface of the fibula

Question 9

Where is the insertion of the fibularis longus?

Answer 9

base of 1st metatarsal and adjacent medial cuneiform bone

Question 10

What is the function of the fibularis longus?

Answer 10

everts and plantar flexes foot and supports the lateral longitudinal and transverse arches of the foot

Question 11

Which nerves innervate the abductor hallucis?

Answer 11

medial plantar nerve

Question 12

Which blood vessels supply the abductor hallucis?

Answer 12

medial plantar artery

Question 13

Where is the origin of the abductor hallucis?

Answer 13

medial tuberal process of calceneus, plantar aponeurosis and medial intermuscular septum

Question 14

Where is the insertion of the abductor hallucis?

Answer 14

medial side of the base of the proximal phalanx of the great toe

Question 15

What is the function of the abductor hallucis?

Answer 15

abducts great toe and flexes MTP joint and supports medial longitudinal arch

Question 16

Which nerves innervate the flexor digitorum brevis?

Answer 16

medial plantar nerve

Question 17

Which blood vessels supply the flexor digitorum brevis?

Answer 17

medial plantar artery

Question 18

Where is the origin of the flexor digitorum brevis?

Answer 18

medial tuberal process of calcaneus, lateral and medial intermuscular septum

Question 19

Where is the insertion of the flexor digitorum brevis?

Answer 19

middle phalanx of lateral 4 toes

Question 20

What is the function of the flexor digitorum brevis?

Answer 20

flexes lateral four toes and supports medial and lateral longitudinal arches

Question 21

Which nerves innervate the lumbricals?

Answer 21

1st lumbrical by medial
plantar nerve and others
by lateral plantar nerve

Question 22

Which blood vessels supply the lumbricals?

Answer 22

medial and lateral plantar artery

Question 23

Where is the origin of the lumbricals?

Answer 23

from tendons of the flexor digitorum longus muscle 1st from medial side of tendon others from the sides of adjacent tendons

Question 24

Where is the insertion of the lumbricals?

Answer 24

extensor tendons on dorsum of the lateral 4 toes

Question 25

What is the function of the lumbricals?

Answer 25

aid in flexion of MTP joints and theoretically extend the IP joints

Question 26

Which nerves innervate the quadratus plantae?

Answer 26

lateral plantar nerve

Question 27

Which blood vessels supply the quadratus plantae?

Answer 27

lateral plantar artery

Question 28

Where is the origin of the quadratus plantae?

Answer 28

medial head - medial surface of calcaneus and long plantar ligament lateral head - lateral border of calcaneus and long plantar ligament

Question 29

Where is the insertion of the quadratus plantae?

Answer 29

tendons of flexor digitorum longus

Question 30

What is the function of the quadratus plantae?

Answer 30

aids the flexor digitorum in flexing the terminal phalanges of the 4 lateral toes by converting pull from posteriormedial to posterior

Question 31

Which nerves innervate the adductor hallucis?

Answer 31

deep branch of lateral plantar nerve

Question 32

Which blood vessels supply the adductor hallucis?

Answer 32

1st plantar metatarsal artery

Question 33

Where is the origin of the adductor hallucis?

Answer 33

oblique head - bases of 2nd-4th metatarsal bones transverse head - plantar ligament

Question 34

Where is the insertion of the adductor hallucis?

Answer 34

lateral side anterior base of proximal phalanx of great toe

Question 35

What is the function of the adductor hallucis?

Answer 35

adducts and assists in flexing great toe