Muscles of the arms and legs

Muscles that move the forearm Biceps brachii flexes the forearm and supinates the hand Brachialis Flexes forearm Brachioradialis flexes forearm

Muscles that move the forearm Triceps brachii extends forearm and arm( Elbow extensor)

Muscles of the Forearm: Anterior Compartment * * * * These muscles are primarily flexors of the wrist and fingers * Figure 10.15a

Muscles of the forearm: Anterior Pronator teres Pronates the forearm and hand Flexor carpi radialis flex and abduct wrist Flexor carpi ulnaris flex and adduct wrist

Muscles of the Forearm: Posterior Compartment * * These muscles are primarily extensors of the wrist and fingers * * Figure 10.16a

Muscles of the Forearm: Posterior Extensor carpi ulnaris Extends & adducts hand at wrist joint Extensor carpi radialis longus Extends and abducts the wrist Extensor digitorum Extends the wrist and phalanges

Muscles That Move The Thigh Posterior (right thigh) Gluteus Maximus Extends and rotates thigh laterally Gluteus Medius abducts and rotates thigh laterally

Muscles That Move The Thigh: Anterior Tensor fasciae latae flexes and abducts thigh Adductor Longus Adducts thigh medically Muscles That Move The Leg: Anterior Sartorius longest muscle flex leg, flex thigh, rotate thigh

Muscles That Move The Leg Gracilis Adducts thigh at hip joint, medially rotates thigh and flex leg at knee joint. Hamstring Muscles: Extends thigh @ hip joint and flexes the leg @ knee Biceps Femoris Semitendinous Semimembranous

Muscles That Move The Leg Quadricep Femoris Group: Rectus Femoris Vastus lateralis Vastus medialis Vastus intermedius All these muscles extends leg @ knee and only the rectus femoris also flexes thigh @ hip joint. Thus the vastus muscles are knee extensors.

Muscles that move the feet & toes Gastrocnemius Plantar flexion (point feet down) Soleus Deep to the gastrocnemius plantar flexion of foot

Muscles that move the feet & toes Peroneus longus (Fibularis longus) plantar flexes and everts the foot Tibialis posterior plantar flexes, inverts foot Flexor digitorum longus plantar flexes, inverts foot, flex toes

Muscles that move the feet & toes Tibialis anterior dorsiflexes, inverts foot Extensor digitorum longus dorsiflexes and everts foot, extends toes