Superficial group of muscles in the posterior compartment of leg Flashcards

1
Q

Gastrocnemius

A

Origin:

  • Medial head - Posterior surface of distal femur just superior to medial condyle
  • Lateral head - upper posterolateral surface of lateral femoral condyle

Insertion:

  • Via calcaneal tendon, to posterior surface of calcaneus

Innervation:

  • Tibial nerve (S1, S2)

Function:

  • Plantarflexes foot and flexes knee
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2
Q

Plantaris

A

Origin:

  • Inferior part of the lateral supracondyler line of femur and oblique popliteal ligament of knee

Insertion:

  • Via calcaneal tendon, to posterior surface of calcaneus

Innervation:

  • Tibial nerve (S1 ,S2)

Function:

  • Plantarflexus foot and flexes knee
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3
Q

Soleus

A

Origin:

  • Soleal line and medial border of tibia, posterior aspect of fibular head and adjacent surfaces of neck and proximal shaft, tendinous arch between finial and fibular attachments

Insertion:

  • Via calcaneal tendon, to posterior surface of calcaneus

Innervation:

  • Tibial nerve (S1, S2)

Function:

  • Plantarflexes the foot
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