Arm Flashcards
Flexor carpi radialis
Anterior, superficial
O. Medial epicondyle of the CFT I. Base of 2&3 metacarpal Act. Flexes at wrist, elbow, and radially deviates N. Medial A. Ulnar and radial
Shake, supinate, distal tendon
Pronator Teres
Anterior, Superficial (PASS fail pass fail)
O 2 heads: medial epicondyle of humerus
Coronoid process of ulna
I lat aspect of radius
Act pronates, flexes elbow
N. Median
A. Ulnar, radial
Shake, thumb in valley at elbow
Palmaris longus
Anterior, Superficial
O. Medial epicondyle of the humerus, off the CFT
I. Palmar aponeurosis and flexor retinaculum
Act. Flexes wrist, elbow
N. Median
A. Ulnar
Shake, supinate, distal tendon
Flexor carpi ulnaris
Anterior, superficial
O. Medial epicondyle of the humerus, off the CFT
I. Pisiform, hook of hamate, base of MC 5
Act. Flexes wrist, arm, ulnar deviation
N. Ulnar
A. Ulnar
Shake, supinate, pisiform
Flexor digitorum superficialis
O. 3 heads-Medial epicondyle of humerus off CFT
-coronoid process of ulna
-proximal 1/3 of radius
I. Middle phalanges of the 2-5 digits
Act. Flexes PIP, MCP, wrist, some elbow
N. Median
A. Ulnar, radial
Shake, supinate, palp up ulnar, squeeze fingers individually to thumb
Flexor digitorum profundus
Anterior, deep
O. Posterior, anterior, medial ulna, interosseus membrane
I. Distal phalanges 2-5
Act. Flexes at MCP, DIP, PIP, wrist
N. Median, ulnar
A. Radial, ulnar, anterior interosseus
Shake, supinate, palp up ulnar side, press fingers to thumb individually
Flexor policis longus
Anterior, deep
O. Distal 1/3 of radius I. Distal phalanx 1 Act.flexes IP, CMC jt of digit 1 N. Median A. Radial, anterior interosseus
Deep to my finger
Pronation quadratus
Anterior deep
O. Distal anterior ulna I. Distal anterior radius Act.pronates forearm N. Median A. Anterior interosseus
Supinate, slide medial to radial styloid process, engage.
Teres minor
O. Superior portion of lateral border of scapula
I. Inferior facet of greater tubercle of the humerus
Act. lateral rotation
N. Axillary
A. Circumflex humeral, circumflex scapular
Prone, arm off bed, engage
Subscapularis
O. Subscapular fossa
I. Lesser tubercle
Act. Medial rotation
N. Upper and lower subscapular
A. Circumflex scapular, dorsal subscapular, suprascapular
(Up, down, around back and above)
Sitting, hand deep in armpit, press their hand to stomach
Teres major
O. lateral border of scapula, inferior portion
I Medial lip of bicipital groove
Act. Adduction, medial rotation
N. Lower subscapular
A. Circumflex scapular
(LeSS CaSh)
Prone, arm off table, adduct
Deltoids
Seated. Spine, acromion, clavicle
Coracobrachialis
Supine, arm straight out and bent 90 degrees, have them adduct against your hand, palp along muscle
Biceps brachii
O. 2 heads: long head-supraglenoid tubercle
Short head-coronoid process
I. Radial tuberosity & bicipital aponeurosis
Act. Flexes at GH and elbow jts, supinates
N. Musculocutaneous
A. Brachial
Sitting or supine. Flex.
Brachialis
O. Distal 1/2 of anterior humerus I. Ulnar tuberosity Act. Flexes elbow N. Musculocutaneous A brachial
Seated. Flex, access lateral side & both sides of bicep tendons
Triceps brachii
O. 3 heads: long- infraglenoid tubercle
Medial-distal 1/2 humeral shaft
Lateral-proximal 1/2
I. Olecranon process of ulna
Act. Extension of GH jt
N Radial
A. Deep brachial
Prone, arm off table. Hold forearm against extension
Brachioradialis
O. Lateral supracondylar ridge of the humerus I. Radial styloid process Act. Flexes elbow, pronates, supinates N. Radial A. Brachial and radial
Sitting. Shake, flex
Anconeus
Posterior, superficial
O. Lateral epicondyle of the humerus, off CFT I. Lateral to the olecranon Act. Extends the elbow jt N. Radial A. Deep brachial
Extensor carpi radialis longus
Posterior superficial. Part of Wad of 3.
O Lateral supracondylar ridge of humerus I. Base of the 2 metacarpal Act. Extends wrist, radial deviation N. Radial A. Brachial and radial
Shake, slide laterally off brachioradialis, radially deviate
Extensor carpi radialis brevis
Posterior Superficial. Part of wad of 3.
O. Lateral epicondyle of humerus I. Base of metacarpal 3 Act. Extends wrist, radial deviation N. Radial A. Brachial and radial
Shake, extend, radially deviate
Extensor digitorum
Posterior, superficial
O. Lateral epicondyle of humerus
I. Middle and distal phalanges 2-5 via dorsal-
Digital expansion
Act. Extend digits 2-5 at MCP, DIP, PIP jts, & wrist
N. Radial
A. Posterior interosseus
Shake, play piano.
Extensor digiti minimi
Posterior superficial
O. Lateral epicondyle of humerus
I. Middle and distal phalanges of #5, via dorsal-
Digital expansion
Act. Extends wrist, MCP, PIP, DIP jts
N. Radial
A. Posterior interosseus
Extensor carpi ulnaris
Posterior, superficial
O. Lateral epicondyle of humerus and
Middle third of ulna
I. Base of metacarpal 5
Act. Extends wrist, ulnar deviation
N radial
A. Posterior interosseus
Abductor pollicis brevis
Thenar muscle
O. Flexor retinaculum, scaphoid, trapezium I. Proximal phalanx 1 Act. Abducts CMC jt of digit 1 N median A. Radial
Flexor pollicis brevis
Thenar muscle
O. Flexor retinaculum, trapezium I. Proximal phalanx of digit 1 Act. Flexes at CMC and MCP jts of digit 1 N. Median, ulnar A. Radial
Opponens digiti minimi
Hypothenar muscle
O. Flexor retinaculum, hook of hamate I. 5th metacarpal, medial surface Act. Opposition of digit 5 at CMC jt N. Ulnar A. Ulnar
Adductor pollicis
Central compartment
O 2 heads:oblique- capitate, base of 2&3 MC
Transverse- 3rd metacarpal, distal portion
I. Proximal phalanx 1, medial portion
Act. Adduct CMC jt
N Ulnar
A. Radial
Dorsal interossei
Central compartment, 4 of them, all are bipennates
O. Bodies of MCs 1-5 I. Proximal phalanges 2-4 Act abduction of 2-4 (DABB) N. Ulnar A. Radial, ulnar
Palmaris brevis
Superficial facia
O. Flexor retinaculum, palmar aponeurosis
I. Dermis of the ulnar side of the hand
Act. Wrinkles skin on ulnar side of hand. Helps to tighten skin and
Tissue of hypothenars during gripping
N. Ulnar
A. Radial, ulnar
Opponens pollicis
Thenar group
O. Flexor retinaculum, trapezium I. Metacarpal 1, anterior lateral surface Act. Opposition at CMC jt of digit 1 N. Medial, ulnar A. Radial
Deltoids
O. Lateral 1/3 of clavicle
Acromion
Spine of scapula
I. Deltoid tuberosity
Act. Abduction, adduction, flexion, extension, medial/lateral extension
N. Axillary
A. Circumflex humeralCoracobrachialis
O. Coracoid process I. Middle third of humerus, medial surface Act. Flexes, adducts at GH jt N. Musculocutaneous A. Brachial
Triceps brachii
O. 3 heads:long head- infraglenoid tubercle
Lateral head- proximal 1/2 of humerus
Medial head- distal 1/2 of humerus
I. Olecranon process of ulna
Act. Extension of elbow, extension of GH jt by long head
N. Radial
A. Deep brachial
Supraspinatus
O. Supraspinatus fossa I. Superior facet of greater tubercle Act. Abduction at GH jt N. Suprascapular A. Suprascapular
Infraspinatus
O. Infraspinatus fossa I Greater tubercle, middle facet Act. lateral rotation N Suprascapular A. Suprascapular
Abductor pollicis longus
Snuff box, lateral
O. Middle 1/3 of posterior ulna, interosseus mem. I. Proximal base of metacarpal 1 Act. Abducts digit 1 @ CMC jt N. Radial A. Posterior interosseus
Extensor indicis
O. Distal 1/3 of ulna & interosseus membrane
I. Middle and distal phalanges of digit 2 via
dorsal digital expansion
Act. Extends digit 2 at PIP, DIP, MCP jts, and wrist
N. Radial
A. Posterior interosseus
