Plantarflexors

Question 1

Common features:

-gastrocnemius, soleus, plantaris

Answer 1

Insertion- calcaneus via tendocalcaneus
Innervation- Tibial Nerve S1-2
Action- PF of foot

Question 2

Gastrocnemius

Answer 2

Origins- Lat head: post aspect of lat fem condyle
Med head: post aspect of med fem condyle

Insertion- Achilles’ tendon->tendocalcaneus into calcaneus

Question 3

Soleus

Answer 3

Origins- soleal line and post surface of tibia

Insertion- fuses with Achilles of gastroc to form sup part of tendocalcaneus

Question 4

Plantaris

-v small with v large tendon, contributes little to movement

Answer 4

Origins- lat supracondylar ridge of femur above lat head of gastroc and adjacent part of popliteal surface of femur

Insertion- med side of tendocalcaneus, post calcaneus