Leg

Question 1

Tibialis Anterior
(O, I, A, N)

Answer 1

O:
-Proximal Anterior Tibia
-Lateral tibial condyle
-Interosseus membrane
I: 1st cuneiform & 1st metatarsal
A: Dorsiflexion & Inversion of foot @ ankle jt.
N: Deep fibular nerve

Question 2

Extensor Hallucis Longus
(O, I, A)

Answer 2

O:
-Middle 1/3 of Fibula
-Interosseus membrane
I: Distal phalanx of 1st digit
A:
-Extension of 1st digit @ MTP & IP jt.
-Dorsiflexion & Inversion of foot @ ankle jt.

Question 3

Extensor Digitorum Longus
(O, I, A, N)

Answer 3

O:
-Proximal 2/3 fibula
-Interosseus membrane
-Lateral tibial condyle
I: Dorsal surfaces of toes #2-#5
-middle & distal phalanges via dorsal digital expansion
A:
-Extension of digits #2-#5 @ MTP, PIPs & DIPs jts.
-Dorsiflexion & Eversion of foot @ ankle jt.
N: Deep fibular nerve

Question 4

Fibularis Tertius
(O, I, A)

Answer 4

O:
-Distal 1/3 of Fibula
-Interosseus membrane
I: Dorsal surface of 5th metatarsal
A: Dorsiflexion & Eversion of foot @ ankle jt.

Question 5

Fibularis Longus
(O, I, A, N)

Answer 5

O:
-Head of fibula
-Proximal ½ of lateral fibula
I: 1st cuneiform & 1st metatarsal
A: Eversion & Plantar flexion of foot @ ankle jt.
N: Superficial fibular nerve

Question 6

Fibularis Brevis
(O, I, A)

Answer 6

O: Distal ½ of lateral fibula
I: Base of 5thmetatarsal
A: Eversion & Plantar flexion of foot @ ankle jt.

Question 7

Gastrocnemius
(O, I, A, N)

Answer 7

O: Medial & lateral condyles of the femur
I: Calcaneus via Calcaneal tendon
A:
-Plantar flexion of foot @ ankle jt.
-Flexion of leg @ knee jt.
N: Tibial nerve

Question 8

Soleus
(O, I, A, N)

Answer 8

O:
-Soleal line of tibia
-Head and proximal 1/3 fibula
I: Calcaneus via Calcaneal tendon
A: Plantar flexion of foot @ ankle jt.
N: Tibial nerve

Question 8

Plantaris
(O, I, A)

Answer 8

O:
-Postero-Lateral condyle
-Distal lateral supracondylar line of femur
I: Posterior calcaneus
A:
-Plantar flexion of foot @ ankle jt.
-Flexion of leg @ knee jt.

Question 8

Popliteus
(O, I, A)

Answer 8

O: Lateral aspect of the lateral condyle of femur
I: Medial proximal tibia
A:
-Medial rotation of tibia @ knee jt.
-Flexion of leg @ knee jt.

Question 9

Tibialis Posterior
(O, I, A)

Answer 9

O:
-Proximal 2/3 tibia
-Fibula
-Interosseous membrane
I: Navicular tuberosity, Plantar surfaces of metatarsals #2-#4 & all tarsals (except talus)
A: Plantar flexion & Inversion of foot @ ankle jt.

Question 10

Flexor Digitorum Longus
(O, I, A)

Answer 10

O: Middle 1/3 of posterior Tibia
I: Plantar surfaces of distal phalanxes #2-#5
A: -Flexion of toes @ MTP, PIP & DIP jts of #2-#5
-Plantar flexion & Inversion of foot @ ankle jt.

Question 11

Flexor Hallucis Longus
(O, I, A)

Answer 11

O: -Distal 2/3 of the fibula and interosseous membrane
I: Distal phalanx of digit 1
A:
-Flexion of 1stdigit @ MTP and IP jts
-Plantar flexion & Inversion of foot @ ankle jt.