Gastrocnemius + Soleus

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What strong Tendon does Soleus and Gastrocnemius attach to ?

Achilles' tendon (strong tendon )

Define dorsiflexion

Bending backwards Contracting foot/hand

Define lateral malleolus

Boney mark on the side of ankle Action (every foot)

Gastro + soleus are what kind of muscles

Calf muscles that attach to the heel bone (calcaneus)

Define ligament

Connects bone to bone

Define tendon

Connects muscle to bone

Description of soleus

Deep to the gastrocnemius Medial + lateral fibers Bulge out to the side of the leg and extend further distal than the gastrocnemius heads

origin of fibularis brevis

Distal two thirds of lateral fibula

actions of fibularis brevis

Everts foot and weakly plantarflexes ankle

Brevis lies deep to what muscle ?

Fibularis longus

Origin of Achilles Tendon (thickest in the human body)

Found in the back of the lower leg know as (heel cord)

origin of peroneus longus (Fibularis longus)

Head of fibula lateral shaft of fibula

What does the gastrocnemius and soleus do ?

Large muscle mass of the posterior leg is composed of soleus + Gastro

fibularis longus/brevis

Located on the lateral side of the fibula Between soleus + extensor digitorum

fibularis tertius origin

Medial surface distal 3rd

What serves to attach to Achilles' tendon

Plantaris Gastrocnemius Soleus Calcaneus(heel bone) Acting via to cause plantar flexion of foot and ankle joint EXCEPT FOR SOLEUS(flex of knee)

insertion of plantaris

Posterior surface of calcaneus via calcaneal tendon

origin of soleus

Soleal line of tibia

Define Calcaneal (Achilles tendon)

Strong tendon at the back of heel

Gastrocnemius and soleus form what ?

Triceps surae

Gastrocnemius has what

Two heads and crosses two joints The knee The ankle

actions of plantaris

Weak plantar flex of ankle

insertion of peroneus longus

base of 1st metatarsal and medial cuneiform

insertion of gastrocnemius and soleus

calcaneus via achilles tendon

Define plantar flexion

depressing the foot (pointing the toes)

fibularis tertius insertion

dorsal surface of metatarsal 5

fibularis tertius action

dorsiflexes and everts foot

actions of peroneus longus

eversion and plantar flexion

Define calcaneus

heel bone

origin of plantaris

lateral supracondylar line of femur

origin of gastrocnemius

medial and lateral epicondyles of femur

actions of soleus

plantar flexion

actions of gastrocnemius

plantar flexion, knee flexion

insertion of fibularis brevis

tuberosity of 5th metatarsal


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