Muscles Flashcards
Brachialis origin
The distal ½ of the anterior surface of humorous
Brachialis insertion
Tuberosity and coronoid process of the ulna
Brachialis actions
Flex elbow at humeroulnar joint
Pronator teres origin
Common flexor tendon from medial epicondyle of humorous and coronoid process of the ulna
Pronator teres insertion
Middle of lateral surface of radius
Pronator teres actions
Pronates the forearm at the radio ulnar joints assists to flex elbow at humeroulnar
Pronator teres nerve
Median
Brachialis nerve
Musculocutaneous nerve small branch from radial nerve
Flexor carpi ulnaris origin
Humeral head: common flexor tendon from medial epicondyle of humorous
Ulnar head: posterior surface of proximal ⅔ of ulna
Flexor carpi ulnaris insertion
Pisiform, hook of hamate and base of 5th metacarpal
Flexor carpi ulnaris actions
Flex and adduct the wrist at radiocarpal joint assist with flexion of elbow at humeroulnar
Flexor carpi ulnaris nerve
Ulnar nerve
Flexor carpi radialis origin
Common flexor tendon from medial epicondyle of humerus
Flexor carpi radialis insertion
Bases of the second and third metacarpals
Flexor carpi radialis actions
Flex abduct wrist at radiocarpal joint assist to flex the elbow at humeroulnar joint
Flexor carpi radialis nerve
Median nerve
FLEXOR DIGITORUM superficialis origin
Common flexor tendon from medial epicondial of the humorous ulnar Collateral legament coronoid process of ulna interosseous membrane and proximal shaft of radius
FLEXOR DIGITORUM superficialis insertion
Sides of middle phalanges of second through fifth fingers
FLEXOR DIGITORUM superficialis actions
Flex the second through fifth fingers flex the wrist at the radiocarpel joint
FLEXOR DIGITORUM superficialis nerve
Median
Flexor digitorum profundus origin
Anterior and medial surface of proximal ¾ of ulna
Flexor digitorum profundus insertion
Bases of distal phalanges palmer surface of second through fifth fingers
Flexor digitorum profundus actions
Flex the second through fifth fingers at metacarpal phalangeal and distal interphangeal joints. Assist to flex the wrist at the radiocarpel joint
Flexor digitorum profundus nerve
Median and ulnar nerve
PALMARIS longus origin
Common flexor tendon of medial epicondial of humor
PALMARIS longus insertion
Flexor retinaculum and palmer aponeurosis
PALMARIS longus actions
Tense , the palmer facia flex the wrist at the radiocarpal joint may assist to flex the elbow at the humeroulnar joint
PALMARIS longus nerve
Median nerve
Pronator quadratus origin
Medial anterior surface of distal ulna
Pronator quadratus insertion
Lateral anterior surface of distal radius
Pronator quadratus action
Pronate at radioulnar joint
Pronator quadratus nerve
Median nerve
Extensor carpi radialis longus (ecrl) origin
Distill one third of lateral supercondular ridge of the humorus
Extensor carpi radialis longus (ecrl) insertion
Base of second metacarpal
Extensor carpi radialis longus (ecrl) actions
Extends abducts the wrist at the radiocarpel Joint assist to flex the elbow at the humuroulnar joint
Extensor carpi radialis longus (ecrl) nerve
Radial
Extensor carpi radialis brevis (ECRB) origin
Common extensor tendon from the lateral epicondyle of the humerus
Extensor carpi radialis brevis insertion
Base of the second metacarpal
Extensor carpi radialis brevis actions
Abduct and extends the wrist at the radiocarpel Joint assist to flex the elbow at the humeroulnar joint
Extensor carpi radialis brevis nerve
Radial
Supinator origin
Lateral epicondial of the humorous radial collateral ligament annular ligament and supinator Crest of the ulna
Supinator insertion
Anterior lateral surface of proximal ⅓ of radial shaft
Supinator actions
Supernates the forearm at the radioulnar joint
Supinator nerve
Radial
Adductor pollicis longus
Posterior surface of the radius ulna and interrocious membrane
Adductor pollicis longus insertion
Base of first metacarpel
Adductor pollicis longus actions
Abducts extends the thumb at the carpo metacarpal and radially deviates the wrist at radiocarpal joint forms anterior border of snuff box
Adductor pollicis longus nerve
Radial
Extensor pollicis longus origin
Posterior surface of ulna and interousious membrane
Extensor pollicis longus insertion
Base of distal phalanx of thumb
Extensor pollicis longus actions
Extend thumb abduct wrists at radiocarpal
Extensor pollicis longus nerve
Radial
Extensor pollicis brevis origin
Posterior surface of radius and interosseous membrane
Extensor pollicis brevis insertion
Base of proximal phalanx of thumb
Extensor pollicis brevis actions
Extend thumb at mcp, cmc joints abduct wrist at radiocarpal
Extensor pollicis brevis nerve
Radial
Flexor pillicis longus origin
Anterior surface of the radius and interosseous membrane
Flexor pillicis longus insertion
Base of distal phalanx of thumb
Flexor pillicis longus actions
Flex the thumb (mcp cmc ip joints) assist to flex the right at radiocarpal joint
Flexor pillicis longus innovation
Median nerve
Deltoid origin
Lateral ⅓ of clavicle acromion and spine of scapula
Deltoid insertion
Deltoid tuberocity
Deltoid actions
Abducts gh
Anterior deltoid flexes medial rotate horizontally adducts gh
Posterior extends laterally rotates horizontally abducts gh joint
Deltoid nerve
Axillary
Biceps brachii origin
Supraglenoid tubercle long head
Coracoid process of scapula short head
Biceps brachii insertion
Tuberocity of radius and aponeurosis of biceps brachii
Biceps brachii actions
Flex humeroulnar supinates radioulnar flexes gh
Biceps brachii nerve
Musculocutaneous
Triceps brachi origin
Infraglenoid tubercle of scapula long head posterior surface of humorous lat and medial head
Triceps brachi insertion
Olecranon process of ulna
Triceps brachi actions
Extend humeroulnar adducts and extends gh
Triceps brachi nerve
Radial
Brachioradialis origin
Proximal ⅔ of lateral supracondylar ridge of humorous
Brachioradialis insertion
Styloid process of radius
Brachioradialis actions
Flexes humeroulnar assist to pronate and supinate forearm when resisted
Brachioradialis nerve
Radial