2839338
Description
Flashcards by Christopher Schneider, updated more than 1 year ago
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Created by Christopher Schneider
over 9 years ago
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| Question | Answer |
| Origin of biceps brachii short head | coracoid process |
| origin of biceps brachii long head | supraglenoid tubercle |
| insertion of biceps brachii | Radial tuberosity and forearm fascia via bicipital aponeurosis |
| actions of biceps brachii | FLEXION and SUPINATION of the forearm at the elbow |
| Innervation of the biceps brachii | musculocutaneous nerve |
| Origin of Coracobrachialis | Coracoid process |
| Insertion of Coracobrachialis | middle third of the medial humerus |
| Actions of the coracobrachialis | FLEXION and ADDUCT arm at shoulder joint |
| innervation of coracobrachialis | Musculocutaneous nerve |
| Origin of Brachialis | Distal half of anterior surface of humerus |
| Insertion of brachialis | Coronoid process of ulna |
| Action of Brachialis | Flexion of the forearm at the elbow joint |
| Innervation of Brachialis | Musculocutaneous nerve |
| Origin of triceps brachii long head | infraglenoid tubercle |
| Origin of triceps brachii lateral head | posterior surface of humerus superior to radial groove |
| Origin of triceps brachii medial head | Posterior surface of humerus, inferior to radial groove |
| Insertion of Triceps brachii | Olecranon process |
| Actions of Triceps brachii | Primarily extend forearm at elbow joint, Long head resists inferior dislocation of humerus during adduction |
| Innervation of Triceps Brachii | Radial nerve |
| Origin of anconeus | Lateral epicondyle of the humerus |
| Insertion of anconeus | Lateral surface of olecranon process and superior part of posterior ulna |
| Actions of Anconeus | Assists in forearm extension at elbow stabilizes elbow |
| Innervation of Anconeus | Radial Nerve |
| Origin of Pronator Teres | Humeral Head: Medial epicondyle (via common flexor tendon) Ulnar head: coronoid process |
| Insertion of Pronator teres | middle portion of lateral radius |
| Actions of pronator teres | PRONATES and FLEXES forearm at elbow |
| Innervation of pronator teres | median nerve |
| Origin of Flexor carpi radialis (FCR) | Medial epicondyle (via common flexor tendon) |
| Insertion of Flexor Carpi radialis | base of second metacarpal |
| Actions of Flexor Carpi Radialis | FLEXES and ABDUCTS hand at wrist |
| Innervation of flexor carpi radialis | Median Nerve |
| Origin of Palmaris longus | Medial epicondyle (via common flexor tendon) |
| Insertion of Palmaris Longus | Palmar aponeurosis (apex) and flexor retinaculum |
| Actions of Palmaris Longus | FLEXES hand (at wrist) TENSES palmar aponeurosis |
| Innervation of Palmaris Longus | Median Nerve |
| Origin of Flexor Carpi Ulnaris | Humeral head: Medial epicondyle (via common flexor tendon) Ulnar head: Olecranon process |
| Insertion of Flexor Carpi Ulnaris | Pisiform, hook of hamate, fifth metacarpal |
| Actions of Flexor Carpi Ulnaris | FLEXES and ADDUCTS (ulnar deviation) hand (at wrist) |
| Innervation of Flexor Carpi Ulnaris | Ulnar Nerve |
| Origin of Flexor Digitorum Superficialis | Humeroulnar head: Medial epicondyle, coronoid process Radial head: Superior portion of radius |
| Insertion of Flexor Digitorum Superficialis | Intermediate phalanx, digits 2-5 |
| Actions of Flexor Digitorum Superficialis | FLEXES middle phalanges at the proximal interphalangeal joint of digits 2-5; may assist FLEXION of proximal phalanges at metacarpophalangeal joints |
| Innervation of Flexor Digitorum Superficialis | Median Nerve |
| Origin of Flexor Digitorum Profundus | Proximal ulna and interosseous membrane |
| Insertion of Flexor Digitorum profundus | Bases of distal phalanx of digits 2-5 |
| Action of Flexor Digitorum Profundus | FLEXES distal phalanges at the distal interphalangeal joint of digits 2-5 |
| Innervation of Flexor Digitorum Profundus | Digits 2, 3: Anterior interosseous nerve (branch of median nerve) Digits 4, 5: Ulnar nerve |
| Origin of Flexor Pollicis Longus | Radius, interosseous membrane |
| Insertion of Flexor Pollicis Longus | Base of distal phalanx of digit 1 (pollex) |
| Action of Flexor Pollicis Longus | Flexes phalanges of digit 1 |
| Innervation of Flexor pollicis longus | Median nerve (via a branch, the anterior interosseous nerve) |
| Origin of pronator quadratus | Distal ulna |
| Insertion of Pronator quadratus | Distal radius |
| Actions of Pronator Quadratus | PRONATES forearm BIND radius and ulna together |
| Innervation of Pronator Quadratus | Median Nerve (via a branch the anterior interosseous nerve) |
| Origin of Brachioradialis | Supracondylar ridge of humerus |
| Insertion of Brachioradialis | Distal Lateral radius |
| Action of Brachioradialis | FLEXES (weakly) forearm at elbow, but strong in mid-pronated position |
| Innervation of Brachioradialis | Radial nerve |
| Origin of Extensor carpi radialis longus | Supracondylar ridge of humerus |
| Insertion of Extensor carpi radialis longus | Base of second metacarpal |
| Action of Extensor carpi radialis longus | EXTEND and ABDUCT (radial deviation) the hand at the wrist, also active during fist clenching |
| Innervation of Extensor carpi radialis longus | Radial nerve |
| Origin of Extensor carpi radialis brevis | lateral epicondyle |
| Insertion of extensor carpi radialis brevis | base of third metacarpal |
| Actions of Extensor carpi radialis brevis | EXTEND and ABDUCT (radial deviation) the hand at the wrist |
| Innervation of Extensor carpi radialis brevis | Radial nerve (via the deep branch of the radial nerve) |
| Origin of Extensor digitorum | Lateral epicondyle |
| Insertion of Extensor Digitorum | Extensor expansion of digits 2-5 |
| Actions of Extensor digitorum | Primary: EXTENSION at metacarpophalangeal joint digits 2-5 Secondary: EXTENSION at interphalangeal joints (distal, middle, and proximal phalanges) |
| Innervation of Extensor digitorum | Radial nerve (via the deep branch of the radial nerve) |
| Origin of extensor digiti minimi | Lateral epicondyle |
| Insertion of extensor digiti minimi | extensor expansion of digit 5 |
| Actions of extensor digiti minimi | Primary: EXTENSION at metacarpophalangeal joint digit 5 Secondary: EXTENSION at interphalangeal joints for digit 5 |
| Innervation of extensor digiti minimi | Radial nerve (via the deep branch of the radial nerve) |
| Origin of extensor carpi ulnaris | 2 heads: Lateral epicondyle & Posterior border of ulna |
| Insertion of Extensor carpi ulnaris | base of fifth metacarpal |
| Action of extensor carpi ulnaris | EXTENDS and ADDUCTS (ulnar deviation) the hand at wrist |
| Innervation of extensor carpi ulnaris | Radial nerve (via the deep branch of the radial nerve) |
| Origin of the supinator | Lateral epicondyle, radial collateral and annular ligament, ulna |
| insertion of supinator | Proximal third of the radius |
| action of supinator | SUPINATES forearm |
| Innervation of supinator | Radial nerve (via the deep branch of the radial nerve) |
| Origin of abductor pollicis longus | proximal half of the posterior ulna, radius, and interosseous membrane |
| Insertion of abductor pollicis longus | base of first metacarpal |
| Action of abductor pollicis longus | ABDUCTS thumb and EXTENDS it at carpometacarpal joint |
| Innervation of abductor pollicis longus | radial nerve (via posterior interosseous nerve, a continuation of the deep branch of the radial nerve) |
| origin of extensor pollicis brevis | Distal third of posterior radius and interosseous membrane |
| Insertion of extensor pollicis brevis | Base of proximal phalanx of digit 1 |
| Action of extensor pollicis brevis | EXTENDS proximal phalanx of thumb at the metacarpophalangeal joint; EXTENDS carpometacarpal joint |
| Innervation of Extensor pollicis brevis | Radial nerve (via posterior interosseous nerve, a continuation of the deep branch of the radial nerve) |
| Origin of extensor pollicis longus | Middle third of posterior ulna and interosseous membrane |
| Insertion of Extensor pollicis longus | Base of distal phalanx of digit 1 |
| Action of extensor pollicis longus | EXTENDS distal phalanx of thumb at interphalangeal joint; EXTENDS carpometacarpal and metacarpophalangeal joints |
| Innervation of extensor pollicis longus | Radial nerve (via posterior interosseous nerve, a continuation of the deep branch of the radial nerve) |
| Origin of extensor indicis | Distal third of posterior ulna and interosseous membrane |
| Insertion of extensor indicis | Extensor expansion of digit 2 |
| action of extensor indicis | EXTENDS proximal phalanx of digit 2, also EXTENDS hand at wrist |
| Innervation of Extensor indicis | Radial nerve (via posterior interosseous nerve, a continuation of the deep branch of the radial nerve) |
| Origin of Abductor pollicis brevis | Flexor retinaculum, tubercles of scaphoid and trapezium |
| Insertion of Abductor pollicis brevis | Proximal phalanx of digit 1 |
| Action of Abductor pollicis brevis | ABDUCTION of the thumb |
| Innervation of Abductor pollicis brevis | Recurrent branch of median nerve |
| Origin of Flexor Pollicis brevis | Flexor retinaculum, tubercles of scaphoid and trapezium |
| Insertion of Flexor pollicis brevis | Base of first proximal phalanx |
| Action of flexor pollicis brevis | FLEXES thumb |
| Innervation of Flexor pollicis brevis | Recurrent branch of median nerve |
| Origin of Opponens pollicis | Flexor retinaculum, tubercles of scaphoid and trapezium |
| Insertion of Opponens pollicis | first metacarpal |
| Action of opponens pollicis | OPPOSITION towards digit 5 |
| Innervation of Opponens pollicis | Recurrent branch of median nerve |
| Origin of Abductor digiti minimi | Pisiform |
| Insertion of Abductor digiti minimi | Base of fifth proximal phalanx |
| Action of Abductor digiti minimi | ABDUCTION of digit 5 |
| Innervation of Abductor digiti minimi | Deep branch of ulnar nerve |
| Origin of flexor digiti minimi brevis | Hook of hamate and the flexor retinaculum |
| Insertion of Flexor digiti minimi brevis | Base of fifth proximal phalanx |
| Action of flexor digiti minimi brevis | FLEXES proximal phalanx of digit 5 |
| Innervation of Flexor digiti minimi brevis | Deep branch of ulnar nerve |
| Origin of Opponens digiti minimi | Hook of hamate and the flexor retinaculum |
| Insertion of Opponens digiti minimi | fifth metacarpal |
| Action of Opponens digiti minimi | OPPOSITION towards digit 1 |
| Innervation of Opponens digiti minimi | Deep branch of ulnar nerve |
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