second half

Front

Coracobrachialis

Back

Adducts arm; flexes arm

P: Coracoid process of scapula
D: Middle medial shaft of humerus

Front

Flexor digitorum Superficialis

Back

Flexes the fingers and wrist.
(Median nerve: C6–C7 fibers)

P: Medial epicondyle of humerus, coronoid process of ulna

D: Middle phalanges of fingers 2–5

Front

Flexor digitorum profundus

Back

it flexes the fingers at the tips, allowing you to curl or close your fingers, like when you make a fist or grip something tightly.



P: Anteromedial surface of ulna; interosseous membrane D: Distal phalanges of fingers 2–5


Lateral one-half of muscle innervated by median nerve (C6–C8 fibers)

Medial one-half of muscle innervated by ulnar nerve (C8 fibers)

Front

Flexor pollicis longus

Back

Muscle helps bend your thumb

Front

Palmaris longus

Back

Muscle helps with flexing your wrist

Front

Pronator quadratus

Back

helps rotate your forearm so your palm faces downward (pronation)

Front

Pronator teres

Back

The pronator teres helps rotate the forearm, turning the palm downward (pronation), and also assists with bending the elbow.




ponator quadratus and Pronator teres work together.

Front

Supinator

Back

helps rotate the forearm so that the palm faces upward (supination)

Front

Extensor digitorum

Back

extends (straightens) the fingers and helps extend the wrist. It allows you to open your hand and spread your fingers.

Front

Abductor pollicis longus

Back

helps move the thumb away from the hand, allowing you to extend and pull the thumb outward, away from the palm (abduction). It also assists in extending the thumb.