Posterior Compartment of Leg Flashcards by Tom Kay | Brainscape

Q

Groups in the Posterior Compartment

A

Superficial and Deep

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Q

Muscles in the Superficial Group

A

Gastrocnemius
Plantaris
Soleus

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Q

Muscles in the Deep Group

A

Tibialis Posterior
Flexor Digitorum Longus
Flexor Hallucis Longus
Popliteus

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Q

Origin of Gastrocnemius

A

Medial Head: Femur (superior to Medial Condyle)

Lateral Head: Lateral Femoral Condyle

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Q

Insertion of Gastrocnemius

A

Calcaneus

via calcaneal tendon

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Q

Innervation of Gastrocnemius

A

Tibial Nerve (S1-S2

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Q

Function of Gastrocnemius

A

Plantarflexion @ ankle

Flexion of knee

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Q

Origin of Soleus

A

Head and Neck of Fibula

Soleal Line

Medial Tibia

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Q

Insertion of Soleus

A

Calcaneus

via calcaneal tendon

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Q

Innervation of Soleus

A

Tibial Nerve (S1-S2

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Q

Function of Soleus

A

Plantarflexion @ ankle

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Q

Origin of Plantaris

A

Lateral Supracondylar Line of Femur

Popliteal Ligament

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Q

Insertion of Plantaris

A

Calcaneus

via calcaneal tendon

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Q

Innervation of Plantaris

A

Tibial Nerve (S1-S2

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Q

Function of Plantaris

A

Plantarflexion @ ankle

Flexion of knee

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Q

Origin of Popliteus

A

Lateral Femoral Condyle

Q

Insertion of Popliteus

A

Proximal Tibia

Q

Innervation of Popliteus

A

Tibial Nerve (L4-S1)

Q

Function of Popliteus

A

Laterally Rotates Femur on Tibia (UNLOCKS KNEE)

Stabilises knee joint

Q

Origin of Tibialis Posterior

A

Interosseus Membrane

Adjacent Tibia and Fibula

Q

Insertion of Tibialis Posterior

A

Navicular (tuberosity) and Medial Cuneiform

Q

Innervation of Tibialis Posterior

A

Tibial nerve (L4-L5)

Q

Function of Tibialis Posterior

A

Plantarflexion @ ankle

Inversion of foot

Medial arch support

Q

Origin of Flexor Digitorum Longus

A

Medial Posterior Tibia

Q

Insertion of Flexor Digitorum Longus

A

Distal Phalanges of Toes 2-5

Q

Innervation of Flexor Digitorum Longus

A

Tibial Nerve (S2-S3

Q

Function of Flexor Digitorum Longus

A

Flexion of Toes 2-5

Q

Origin of Flexor Hallucis Longus

A

Fibula

Interosseus Membrane

Q

Insertion of Flexor Hallucis Longus

A

Distal Phalanx of Toe 1

Q

Innervation of Flexor Hallucis Longus

A

Tibial Nerve (S2-S3)

Q

Function of Flexor Hallucis Longus

A

Flexion of Toe 1