Exam 4 Lower Leg and Foot Muscles

Question 1

the anterior compartment muscles

Answer 1

tibialis anterior, extensor digitorum longus, extensor hallucis longus, peroneus Tertius.

Question 2

what nerve and artery supply the anterior compartment

Answer 2

the anterior tibial artery

deep peroneal nerve

Question 3

Tibialis anterior

Answer 3

O: superior 2/3 lateral surface of tibia
I: medial cuneiform and base first metatarsal
N: deep peroneal
A: DF and INV

Question 4

Extensor Digitorum Longus

Answer 4

O: superior 2/3 fibula
I: middle and distal phalanges of the lateral four toes
N: deep peroneal
A: DF and extension of the toes.

Question 5

Extensor Hallucis Longus

Answer 5

O: middle 1/3 fibula
I: base of the distal phalanx of hallux
N: deep peroneal
A: DF and extension of hallux

Question 6

Peroneus Tertius

Answer 6

O: distal end of fibula
I: base of the 5th metatarsal
N: deep peroneal
A: DF and EVE

Question 7

Extensor Digitorum Brevis

Answer 7

DORSUM OF FOOT
O: calcaneus 
I: long extensor tendons of digits 2-4
N: deep peroneal 
A: extension of digits 2-4

Question 8

Extensor Hallucis Brevis

Answer 8

DORSUM
O: calcaneus 
I: base proximal phalanx of hallux 
N: deep peroneal 
A: extension of the big toe

Question 9

Lateral compartment muscles

Answer 9

peroneus longus and peroneus brevis

Question 10

what is the arterial and nerve supply of the lateral compartment

Answer 10

peroneal artery and superficial peroneal nerve

Question 11

Peroneus (Fibularis) Longus

Answer 11

O: superior 2/3 fibula
I: base first metatarsal and medial cuneiform
N: superficial peroneal
A: EVE and PF

Question 12

Peroneus (Fibularis) Brevis

Answer 12

O: distal end of the fibula
I: base of the 5th metatarsal
N: superficial peroneal
A: EVE and PF

Question 13

posterior compartment muscles

Answer 13

Gastroc
Soleus
Plantaris
Flexor Digitorum Longus
Flexor Hallucis Longus 
Tibialis Posterior 
Popliteus

Question 14

Posterior compartment artery and nerve supply

Answer 14

posterior tibial artery, and tibial nerve

Question 15

Gastroc

Answer 15

O: lateral head from lateral femur and medial head of femur
I: calcaneus
N: tibial nerve
A: PF and knee flexion

Question 16

Soleus

Answer 16

O: posterior surface tibia and fibula
I: calcaneus
N: tibial nerve
A: PF

Question 17

Plantaris

Answer 17

O: lateral condyle of femur
I: calcaneus
N: tibial nerve
A: PL and leg flexion

Question 18

Flexor Digitorum Longus

Answer 18

O: tibia
I: distal phalanx of lateral four digits
N: tibial nerve
A: flexion of digits 2-5 and PF

Question 19

Flexor Hallucis Longus

Answer 19

O: fibula
I: distal phalanx of big toe
N: tibial nerve
A: flexion of hallux and PF

Question 20

Tibialis Posterior

Answer 20

O: tibia, fibula and interosseous membrane
I: navicular, cuboid, base 2-4 metatarsals
N: tibial nerve
A: INV and PF

Question 21

Popliteus

Answer 21

O: upper end of tibia
I: lateral condyle of femur
N: tibial nerve
A: rotation of knee joint and knee flexion

Question 22

First layer of the sole of the foot

Answer 22

abductor hallucis
flexor digitorum brevis
abductor digiti (minimi) quinti

Question 23

Abductor Hallucis

Answer 23

O: medial calcaneus and plantar aponeurosis
I: proximal phalanx of hallux
N: medial plantar nerve
A: ABD and flex hallux at MTP joint

Question 24

Flexor Digitorum brevis

Answer 24

O: medial calcaneus and planter aponeurosis
I: middle phalanx of lateral four toes
N: medial plantar nerve
A: flexes toes 2-5 at MTP and PIP joints

Question 25

abductor digiti (minimi) quinti

Answer 25

O: lateral calcaneus and plantar aponeurosis I: proximal phalanx of 5th digit N: lateral plantar nerve A: ABD and flex the little toe at MTP

Question 26

Second layer

Answer 26

flexor digitorum longus tendon flexor hallucis longus tendon quadratus plantae Lumbricals

Question 27

Flexor Digitorum Longus Tendon

Answer 27

O: tibia I: distal phalanx of lateral four digits N: tibial nerve A: flexion of digits 2-5 at MTP, PIP and DIP joints

Question 28

Flexor Hallucis Longus Tendon

Answer 28

O: fibula I: distal phalanx of big toe N: tibial nerve A: flexion of hallux at MTP and IP joint

Question 29

Quadratus Plantae

Answer 29

O: plantar surface of calcaneus I: tendon of flexor digitorum longus N: lateral plantar nerve A: redirect line of pull of tendons of flexor digitorum longus

Question 30

Lumbricals

Answer 30

O: medial border of tendons of the FDL I: bases of proximal phalanx 2-5 and dorsal digital expansions N: the medial one by the medial plantar and the lateral three by the lateral plantar A: flexes the MTP and extends the PIP and DIP of the lateral 4 toes

Question 31

Third Layer

Answer 31

Flexor Hallucis Brevis Flexor Digiti Quinti Adductor Hallucis

Question 32

Flexor Hallucis Brevis

Answer 32

HAS SEASOMOIDS O: plantar surface of the cuboid and lateral cuneiform I: medial and lateral proximal phalanx of the big toe N: medial plantar A: flexes the great toe

Question 33

Flexor Digiti Quinti

Answer 33

O: base of 5th metatarsal I: proximal phalanx of the 5th toe N: lateral plantar nerve A: flex the little toe

Question 34

Adductor Hallucis

Answer 34

O: Oblique head: base of 2-4 metatarsals Transverse head: plantar lig. of the lateral 4 MTP I: lateral base of the proximal phalanx of hallux N: lateral plantar nerve A: ADD the great toe, and maintaining transverse arch

Question 35

Fourth layer of sole of foot

Answer 35

Plantar interossei | Dorsal Interossei

Question 36

Plantar Interossei

Answer 36

O: medial side 3-5 metatarsals I: medial sides of proximal phalanges 3-5 digits and extensor expansions N: lateral plantar nerve A: ADD to the line of the second toe

Question 37

Dorsal Interossei

Answer 37

``` O: adjacent sides of two metatarsals I: #1: medial side of the second digit #2 lateral side of second digit #3 lateral side of 3rd digit #4 lateral side of 4th digit N: lateral plantar nerve A: ABD from line of the second toe ```