muscles of the lower leg

Question 1

What muscle is this? Origin? Insertion? Action?

Answer 1

Gastrocnemius
Origin: medial and lateral condyles of femur
Insertion: calcaneus
Action: plantar flexion

Question 2

What muscle is this? Origin? Insertion? Action?

Answer 2

Soleus

Origin: proximal tibia, fibula
Insertion: proximal tibia
Action: plantar flexion

Question 3

What muscle is this? Origin? Insertion? Action?

Answer 3

extensor digitorum longus

origin: tibia, fibula
insertion: phalanges 2-5
action: toe extension, dorsiflexion

Question 4

What muscle is this? Origin? Insertion? Action?

Answer 4

tibialis anterior

origin: upper tibia
insertion: metatarsal 1
action: dorsiflexion + foot inversion

Question 5

What muscle is this? Origin? Insertion? Action?

Answer 5

popliteus

origin: lateral condyle of femur Insertion
insertion: proximal tibia
action: rotates tibia medially

Question 6

What muscle is this? Origin? Insertion? Action?

Answer 6

tibialis posterior

origin: proximal tibia, fibula Insertion
insertion: navicular, cuneiform, metatarsal 2-4
action: inversion, plantar flexion

Question 7

What muscle is this? Origin? Insertion? Action?

Answer 7

flexor digitorum longus

origin: posterior tibia
insertion: distal phalanges
Action: flex toes 2-5, plantar flexion

Question 8

What muscle is this? Origin? Insertion? Action?

Answer 8

flexor hallucis longus

origin: distal fibula
insertion: phalanx 1
action: flexes toe 1, plantar flexion

Question 9

What muscle is this? Origin? Insertion? Action?

Answer 9

fibularis longus

origin: head of fibula
insertion: metatarsal one, cuneiform
action: plantar flexion + eversion of foot

Question 10

What muscle is this? Origin? Insertion? Action?

Answer 10

fibularis brevis

origin: distal fibula
insertion: metatarsal 5
action: plantar flexion + eversion of foot