Plantarflexion muscles

Question 1

Name the plantarflexion muscles

Answer 1

Gastrocnemius
Soleus
Plantaris

Question 2

Gastrocnemius

Answer 2

O- Lateral head- posterior aspect of the lateral femoral condyle
I- posterior surface of calcaneus via the tendocalcaneus
A- plantar flexion of the foot and knee flexion
Tibial nerve S1.S2

Question 3

Soleus

Answer 3

O- posterior surface of tibia, posterior surface of upper 1/3 of fibula
I- fuses with the tendon of gastrocnemius to form upper part of tendocalcaneus into posterior surface of the calcaneus
A- plantar flexion of the foot
Tibial Nerve S1, S2

Question 4

Plantaris

Answer 4

O- lateral supracondylar ridge of femur, above lateral head of Gastrocnemius adjacent part of popliteal surface of femur
I- Medial side of tendocalcaneus, posterior surface of the calcaneus
A- insignificant plantar flexor of he foot and weak knee flexor
Tibial Nerve S1,S2

Question 5

What can plantar flexion be limited by?

Answer 5

tension in the antagonists
anterior part of the deltoid ligament
anterior talofibular ligament

Question 6

Normal Range of Plantar flexion

Answer 6

50 degrees