Elbow, Forarm, Wrist, Hand Flashcards
Surface anatomy: Locate the: Hypothenar eminence Thenar eminence Both styloid processes
Located on page 126 functional anatomy book
Brachialis
O: distal one half of anterior surface of the humerus
I: tuberosity and coronoid process of the ulna
A: flexes the elbow
N: musculocutaneous nerve C5-C6
Brachioradialis
O: proximal two thirds of lateral side of humerus
I: lateral side of radial styloid process
A: flexes elbow, pronates the forearm from supinated to neutral
Supinated the forearm from pronated to neutral
N: radial nerve C5-T1
Flexor Carpi Radialis
O: medial epicondyle of the humerus
I: base of 2nd and 3rd metacarpals, palmar side
A: flexes the wrist, slightly flexes the elbow, slightly pronates forearm
N: median nerve C5-T1
Pg 159
Palmaris longus
O: median epicondyle of the humerus
I: flexor retinaculum and palmar aponeurosis
A: tenses the palmar fascia, flexes the wrist, slightly flexes the elbow
N: median nerve C5-T1
Pg 160
Flexor Carpi ulnaris
O: medial epicondyle of humerus
I: pisiform, hook of hamate, and base of 5th metacarpal on palmar side
A: flexes the wrist, adducts the wrist, slightly flexes the elbow
N: ulnar C8-T1
Pg 161
Flexor digitorum superficialis
O: medial epicondyle of humerus and ulnar collateral ligament
O: ulnar head: medial aspect of coronoid process
O: radial head
I: sides of middle phalanges of digits 2-5 by four separate tendons
A: flexes proximal interphalangeal joints, assists in flexing the metarcarpophalangeal joints
-assisted flexing the wrist and elbow
N: median nerve, C5-T1
Pg 162
Flexor digitorum profundus
O: anterior and medial of proximal 3/4 of the ulna and interosseus membrane
I: base of digital phalanges of digits 2-5, palmar side by 4 separate tendons
A: flexes interphalangeal joints of digits 2-5 and assist in flexing the other interphalangeal and metacarophalangeal joints
-assists in flexing the wrist
N: median nerve for digits 2 and 3
Ulnar nerve for digits 4 and 5
Pg 163
Pronator terres pg 165
O: medial epicondyle of humerus
I: middle, 1/3 of lateral radius
A: pronates the forearm and assists in flexing elbow
N: median nerve C6-C7
Pronator quadratus pg 166
O: medial side and anterior surface of distal one-forth of the ulna
I: lateral side and anterior surface of distal one-one forth of the radius
A: pronates the forearm
N: median nerve C7-C8
Extensor Carpi Radialis longus pg 169
O: distal 1/3 of lateral supracondyle ridge of the humerus I: base of 2nd metacarpal, dorsal side A: extends wrist -abducts wrist -assists in flexing elbow -slightly supinates the forearm N: radial nerve C5-T1
Extensor Carpi Radialis brevis pg 170
O: lateral epicondyle of humerus I: base of 3rd metacarpal, dorsal side A: extends the wrist -abducts the wrist -assists in extending the elbow N: radial nerve
Extensor Carpi ulnaris
O: lateral epicondyle of the humerus and middle 1/3 of posterior boarder of the ulna I: base of 5th metacarpal dorsal side A: extend the wrist -ulnar deviates (adducts) the wrist -slightly extends the elbow N: radial nerve C5-T1
Extensor digiti minimi pg 174
O: lateral epicondyle of humerus
I: base of 5th proximal phalanx, dorsal side
A: extends the 5th digit at metacarpophalangeal and interphalangeal joints
-extends wrist
-slightly extends elbow
Abductor pollicis longus: pg 175
O: middle 1/3 of posterior surface of the ulna, radius interosseus membrane
I: base of first metacarpal, dorsal side
A: abducts the 1st carpometacarpal joint
-abducts the wrist
-slightly flexes the wrist
