OIAI Forearm

What is the origin of the Pronator Teres?

Medial epicondyle -humerus; Coronoid process -ulna

What is the insertion of the Pronator Teres?

Lateral radius

What is the action of the Pronator Teres?

Pronation of forearm ; Weak flexion of elbow

What is the innervation of the Pronator Teres?

Median n. (C5-C6)

What is the vascular supply of the Pronator Teres?

Ulnar a.

What is the primary derivation of the Pronator Teres?

Ventral

What is the origin of the Flexor Carpi Radialis?

Medial epicondyle of humerus/ common flexor tendon

What is the insertion of the Flexor Carpi Radialis?

Base of 2nd metacarpal

What is the action of the Flexor Carpi Radialis?

Flexion of wrist; Radial Deviation of wrist

What is the innervation of the Flexor Carpi Radialis?

Median n. (C6-C7)

What is the vascular supply of the Flexor Carpi Radialis?

Ulnar a.

What is the primary derivation of the Flexor Carpi Radialis?

Ventral

What is the origin of the Palmaris Longus?

Medial epicondyle of humerus/ common flexor tendon

What is the insertion of the Palmaris Longus?

Palmar aponeurosis

What is the action of the Palmaris Longus?

Tightening of palmar aponeurosis

What is the innervation of the Palmaris Longus?

Median n. (C7-C8)

What is the vascular supply of the Palmaris Longus?

Ulnar a.

What is the primary derivation of the Palmaris Longus?

Ventral

What is the origin of the Flexor Carpi Ulnaris?

Medial epicondyle of humerus/ common flexor tendon; flexor tendon; Olecranon

What is the insertion of the Flexor Carpi Ulnaris?

Base of 5th metacarpal; Pisiform & Hamate

What is the action of the Flexor Carpi Ulnaris?

Flexion of wrist; Ulnar deviation of wrist

What is the innervation of the Flexor Carpi Ulnaris?

Ulnar n. (C7-T1)

What is the vascular supply of the Flexor Carpi Ulnaris?

Ulnar a.

What is the primary derivation of the Flexor Carpi Ulnaris?

Ventral

What is the origin of the Flexor Digitorum Superficialis?

Medial epicondyle/ common flex. tendon; Coronoid process ; Anterior radius

What is the insertion of the Flexor Digitorum Superficialis?

Palmar surface of middle ; phalanx of digits 2-5

What is the action of the Flexor Digitorum Superficialis?

Flexion of wrist, metacarpophalangeal & proximal interphalangeal joints

What is the innervation of the Flexor Digitorum Superficialis?

Median n. (C8-T1)

What is the vascular supply of the Flexor Digitorum Superficialis?

Ulnar a.

What is the primary derivation of the Flexor Digitorum Superficialis?

Ventral

What is the origin of the Flexor Pollicis Longus?

Anterior radius; Interosseus membrane

What is the insertion of the Flexor Pollicis Longus?

Palmar surface of distal phalanx of pollex (thumb)

What is the action of the Flexor Pollicis Longus?

Flexion of wrist, CMC, MCP, IP of thumb

What is the innervation of the Flexor Pollicis Longus?

Median n. (C7-C8) ; (Anterior Interosseus Nerve)

What is the vascular supply of the Flexor Pollicis Longus?

Interosseus a.

What is the primary derivation of the Flexor Pollicis Longus?

Ventral

What is the origin of the Flexor Digitorum Profundus?

Anterior ulna; Interosseus membrane

What is the insertion of the Flexor Digitorum Profundus?

Base of distal phalanx of digits 2-5

What is the action of the Flexor Digitorum Profundus?

Flexion of wrist, CMC, MCP, PIP, DIP joints of fingers 2-5

What is the innervation of the Flexor Digitorum Profundus?

Digit 2 & 3 - Median n. (C8-T1); Digit 4 & 5 - Ulnar n. (C8,T1)

What is the vascular supply of the Flexor Digitorum Profundus?

Interosseus a.

What is the primary derivation of the Flexor Digitorum Profundus?

Ventral

What is the origin of the Pronator Quadratus?

Distal anterior ulna

What is the insertion of the Pronator Quadratus?

Distal anterior radius

What is the action of the Pronator Quadratus?

Pronation of forearm

What is the innervation of the Pronator Quadratus?

Median n. (C8-T1); (Anterior Interosseus Nerve)

What is the vascular supply of the Pronator Quadratus?

Interosseus a.

What is the primary derivation of the Pronator Quadratus?

Ventral

What is the origin of the Brachioradialis?

Lateral supracondylar ridge of humerus

What is the insertion of the Brachioradialis?

Radial styloid process

What is the action of the Brachioradialis?

Flexion of elbow

What is the innervation of the Brachioradialis?

Radial n. (C5-C6)

What is the vascular supply of the Brachioradialis?

Radial a.

What is the primary derivation of the Brachioradialis?

Dorsal

What is the origin of the Extensor Carpi Radialis Longus?

Lateral supracondylar ridge of humerus

What is the insertion of the Extensor Carpi Radialis Longus?

Base of 2nd metacarpal

What is the action of the Extensor Carpi Radialis Longus?

Extension of wrist ; Radial deviation; Weak flexion of elbow

What is the innervation of the Extensor Carpi Radialis Longus?

Radial n. (C5-C8)

What is the vascular supply of the Extensor Carpi Radialis Longus?

Radial a.

What is the primary derivation of the Extensor Carpi Radialis Longus?

Dorsal

What is the origin of the Extensor Carpi Radialis Brevis?

Lateral epicondyle of humerus/ common extensor tendon

What is the insertion of the Extensor Carpi Radialis Brevis?

Base of 3rd metacarpal

What is the action of the Extensor Carpi Radialis Brevis?

Extension of wrist ; Radial deviation; Weak flexion of elbow

What is the innervation of the Extensor Carpi Radialis Brevis?

Radial n. (C7-C8)

What is the vascular supply of the Extensor Carpi Radialis Brevis?

Radial a.

What is the primary derivation of the Extensor Carpi Radialis Brevis?

Dorsal

What is the origin of the Extensor Digitorum?

What is the insertion of the Extensor Digitorum?

Dorsal digital expansion to ; digits 2-5

What is the action of the Extensor Digitorum?

Extension of wrist and MCP of fingers

What is the innervation of the Extensor Digitorum?

Radial n. (C7-C8) (Posterior Interosseus nerve)

What is the vascular supply of the Extensor Digitorum?

Radial a.

What is the primary derivation of the Extensor Digitorum?

Dorsal

What is the origin of the Extensor Digiti Minimi?

What is the insertion of the Extensor Digiti Minimi?

Dorsal digital expansion to ; digit 5

What is the action of the Extensor Digiti Minimi?

Extension of wrist ; Extension & abduction of pinky (MCP, PIP, DIP joints)

What is the innervation of the Extensor Digiti Minimi?

What is the vascular supply of the Extensor Digiti Minimi?

Radial a.

What is the primary derivation of the Extensor Digiti Minimi?

Dorsal

What is the origin of the Extensor Carpi Ulnaris?

Lateral epicondyle/ common ext. tend. ; Dorsal surface of ulna

What is the insertion of the Extensor Carpi Ulnaris?

Base of 5th metacarpal

What is the action of the Extensor Carpi Ulnaris?

Extension of wrist; Ulnar deviation

What is the innervation of the Extensor Carpi Ulnaris?

What is the vascular supply of the Extensor Carpi Ulnaris?

Radial a.; Interosseus a.

What is the primary derivation of the Extensor Carpi Ulnaris?

Dorsal

What is the origin of the Supinator?

Lateral epicondyle of humerus, olecranon

What is the insertion of the Supinator?

Radius

What is the action of the Supinator?

Supination of wrist

What is the innervation of the Supinator?

Radial n. (C5-C6)

What is the vascular supply of the Supinator?

Radial a.

What is the primary derivation of the Supinator?

Dorsal

What is the origin of the Abductor Pollicis Longus?

Dorsal surfaces and interosseus membranes of radius & ulna

What is the insertion of the Abductor Pollicis Longus?

Lateral base of 1st metacarpal

What is the action of the Abductor Pollicis Longus?

Radial deviation; Abduction of thumb

What is the innervation of the Abductor Pollicis Longus?

Radial n. (C7, C8) (Posterior Interosseus nerve)

What is the vascular supply of the Abductor Pollicis Longus?

Interosseus a.

What is the primary derivation of the Abductor Pollicis Longus?

Dorsal

What is the origin of the Extensor Pollicis Brevis?

Posterior surface of radius; Interosseus membrane

What is the insertion of the Extensor Pollicis Brevis?

Posterior base of proximal phalanx of thumb

What is the action of the Extensor Pollicis Brevis?

Extension of the thumb at CMC & MCP joints

What is the innervation of the Extensor Pollicis Brevis?

Radial n. (C7, C8) (Posterior Interosseus nerve)