Question | Answer |
Gastrocnemius | Flex knee and plantarflex ankle |
Soleus | Plantarflex ankle
Does not cross knee |
Plantaris | Weakly flex knee, plantarflex ankle |
Calcaneal Tendon | Achilles Tendon - gastrocnemius, soleus and plantaris come together to form this |
What innervates Gastrocnemius, Soleus and Plantaris? | Tibial Nerve |
Popliteus | Unlocks knee from extended position
(Rotates femur laterally) |
Flexor Digitorum Longus | Plantar Flex Ankle
Flex digits 2-5 |
Flexor Hallucis Longus | Weakly plantar flex ankle
Flex big toe |
Tibialis Posterior | Plantar flex ankle
Invert Foot |
Popliteal Artery splits into: | Anterior Tibial Artery and Posterior Tibial Artery |
Sciatic Nerve splits into what nerves in the popliteal fossa? | Tibial and Common Fibular Nerves |
What movements does the muscles of the anterior compartment of the leg make? | Dorsiflex foot, extend toes, invert foot.
Innervations: Deep Fibular Nerve |
What movements does the muscles of the lateral compartment of the leg make? | Evert foot
Innervation: Superficial Fibular Nerve |
Tibialis Anterior | Dorsiflex Ankle
Invert Foot
Support medial arch of foot |
Extensor Hallucis Longus | Extend hallux (big toe), dorsiflex ankle |
Extensor Digitorum Longus | Dorsiflex ankle, extend digits 2-5 |
Fibularis Longus | Runs across the sole of the foot to insert of base of first metatarsal |
Fibularis Brevis | Inserts on base of 5th metatarsal |
Lateral leg muscles are innervated by what? | Superficial Fibular Nerve |
What does the superficial fibular nerve branch innervate? | Lateral Compartment of Leg |
What does the deep fibular nerve branch innervate? | Anterior Compartment of the leg |