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Muscles Upper limbs

Muscles of the forearm!!

QuestionAnswer
O. of Brachioradialis Lateral supracondyle ridge of humerus
I. of Brachioradialis Styloid process of ulna
A. of Brachioradialis Flexion of elbow (works best in neutral position)
N. of Brachioradialis Radial n.
O. of Pronator Teres Humeral head: medial epicondyle of humerus. Ulnar head: coronoid process of ulna
I. of Pronator Teres Middle of Lateral shaft of radius
A. of Pronator Teres Pronation of forearm, assists flexion of elbow.
N. of Pronator Teres Median n.
O. of Pronator Quadratus Distal 1/4 of anterior ulna
I. of Pronator Quadratus Distal 1/4 of anterior radius
A. of Pronator Quadratus Pronation of forearm
N. of Pronator Quadratus Median n.
O. of Supinator Lateral epicondyle of humerus, Annular and radial collateral ligaments, proximal ulna at supinator crest
I. of Supinator supination of forearm
N. of Supinator Radial n.
O. of Extensor Carpi Radialis Longus Lateral Supracondylar ridge, lateral epicondyle of humerus
I. of Extensor Carpi Radialis Longus Base of the 2nd metacarpal
A. of Extensor Carpi Radialis Longus Extension, Abduction of wrist (radial deviation)
N. of Extensor Carpi Radialis Longus Radial n.
O. of Extensor Carpi Radialis Brevis Lateral epicondyle of humerus (common extensor tendon)
I. of Extensor Carpi Radialis Brevis Base of the 3rd metacarpal
A. of Extensor Carpi Radialis Brevis Extension of Wrist
N. of Extensor Carpi Radialis Brevis Radial n.
O. of Extensor Carpi Ulnaris Lateral epicondyle of humerus (common extensor tendon), posterior proximal ulna
I. of Extensor Carpi Ulnaris Base of 5th metacarpal
A. of Extensor Carpi Ulnaris Extension, adduction of wrist (ulnar deviation)
N. of Extensor Carpi Ulnaris Radial n.
O. of Extensor Digitorum Lateral epicondyle of humerus (common extensor tendon)
I. of Extensor Digitorum Via extensor expansion of 4 fingers, into the base of the 2nd and 3rd phalanges
A. of Extensor Digitorum Extension of 4 fingers at MP joints and interphalangeal joints, assists extension of wrist
N. of Extensor Digitorum Radial n.
O. of Extensor Digiti Minimi Later epicondyle of humerus (common extensor tendon)
I. of Extensor Digiti Minimi Via extensor expansion of little finger to the base of the 2nd and 3rd phalanges
A. of Extensor Digiti Minimi Extension of the little finger at MP joint and interphalangeal joints, assist extension of wrist
N. of Extensor Digiti Minimi Radial n.
O. of Extensor Indicis Posterior ulna and interosseus membrane
I. of Extensor Indicis Via extensor exspansion of index finger to the base of the 2nd and 3rd phalanges
A. of Extensor Indicis Extension of the index finger at MP joint and interphalangeal joints, assists extension of wrist
N. of Extensor Indicis Radial n.
O. of Extensor Pollicis Longus Posterior ulna and interosseous membrane, middle 1/3
I. of Extensor Pollicis Longus Base of distal phalanx of thumb
A. of Extensor Pollicis Longus Extension of distal phalanx of thumb at IP joint, assists wrist abduction
N. of Extensor Pollicis Longus Radial n.
O. of Extensor Pollicis Brevis Poster radius, interosseous membrane
I. of Extensor Pollicis Brevis Base of proximal phalanx of thumb
A. of Extensor Pollicis Brevis Extension of proximal phalanx of thumb at MP joint, assists wrist abduction
N. of Extensor Pollicis Brevis Radial n.
O. of Abductor Pollicis Longus Posterior radius, posterior ulna, interosseous membrane
I. of Abductor Pollicis Longus Base of 1st metacarpal
A. of Abductor Pollicis Longus Abduction of 1st metacarpal of thumb at CM joint, assists wrist abduction
O. of Flexor Carpi Ulnaris Humeral head: medial epicondyle of humerus. Ulnar head: proximal posterior ulna and olecranon process of ulna
I. of Flexor Carpi Ulnaris Pisiform, Hamate, base of 5th metacarpal
A. of Flexor Carpi Ulnaris Flexion, adduction of wrist (ulnar deviation)
N. of Flexor Carpi Ulnaris Ulnar n.
O. or Palmaris Longus Medial Epicondyle of humerus
I. of Palmaris Longus Palmer aponeurosis, flexor retinaculum
A. of Palmaris Longus Assists flexion of wrist
N. of Palmaris Longus Median n.
O. of Flexor Carpi Radialis Medial epicondyle of humerus
I. of Flexor Carpi Radialis Bases of 2nd and 3rd metacarpals
A. of Flexor Carpi Radialis Flexion, abduction of wrist (radial deviation)
N. of Flexor Carpi Radialis Median n.
O. of Flexor Digitorum Superficialis Humeral Head: Medial epicondyle of humerus. Ulnar Head: Coronoid process of ulna. Radial Head: Anterior oblique line
I. of Flexor Digitorum Superficialis Sides of shafts of middle phalanges of 4 fingers
A. of Flexor Digitorum Superficialis Flexion of middle phalanges of 4 fingers at PIP joint, assists flexion of wrist
N. of Flexor Digitorum Superficialis Median n.
O. of Flexor Digitorum Profundus Middle of anterior Ulna and interosseous membrane
I. of Flexor Digitorum Profundus Bases of distal phalanges of 4 fingers
A. of Flexor Digitorum Profundus Flexion of distal phalanges of 4 fingers at DIP joints, assists flexion of wrist
N. of Flexor Digitorum Profundus Median n. to radial two fingers, Ulnar n. of ulnar 2 fingers
O. of Flexor Pollicis Longus Middle of anterior radius, interosseous membrane
I. of Flexor Pollicis Longus Distal phalanx of thumb
A. of Flexor Pollicis Longus Flexion of distal phalanx of thumb at IP joint
N. of Flexor Pollicis Longus Median n.
Created by: coyne44