Quiz 4 Practice – Muscles of the lower arm and lower leg.

Word Banks: Names:BrachioradialisFlexor carpiExtensor carpiTibialis anteriorGastrocnemiussoleus

Origins:Proximal tibia and fibulaDistal end of femurProximal 2/3 of tibiaDistal humerusDistal humerusDistal humerus

Insertions:Radius (styloid process)Metacarpals and carpalsCalcaneus via achilles tendonTarsal bone and first metatarsalCalcaneus via achilles tendonMetacarpals

Actions:Dorsiflexion and invert footPlantar flexion and flexion of leg at kneePlantar flexion onlyFlexes wristFlexes forearmExtend wrist

Brachioradialis

Distal humerus

radius (styloid process)

flexes forearm

Flexor carpi (radialaris)

distal end of humerus

metacarpals

flex wrist

Extensor carpi (radialis longus)

distal humerus

metacarpals

extends wrist

Brachioradialis

Tibialis anterior

proximal 2/3rd s of tibia

tarsal and first metatarsal

dorsiflexion and invert foot

gastrocnemius

distal femur (by two heads)

calcaneus via achilles tendon

plantar flexion (also flex leg at knee)

soleus

proximal tibia and fibula

calcaneus via achilles

plantar flexion