Muscles lV Flashcards
Biceps Brachii
O: s - coracoid process; l - supraglenoid tubercle
I: radial tuberosity
A: flex elbow
Brachialis
O: humerus
I: coronoid process
A: flex elbow
Brachioradialis
O: humerus
I: radius, above styloid process
A: flexes elbow (with palms down)
“The Basketball One”
Pronator Teres
O: humerus, ulna
I: radius, mid-lateral surface
A: pronates forearm
Between brachioradialis and flexor carpi radialis
Short
Triceps Brachii
O: 2 from humerus, 1 from infraglenoid tubercle
I: Olecranon process
A: extend elbow
Flexor Carpi Radialis
O: medial epicondyle
I: metabcarpals 2-3
A: flex wrist
Palmaris Longus
O: medial epicondyle
I: flexor retinaculum, palmar aponeurosis
A: anchors palmar skin and fascia
Flexor Carpi Ulnaris
O: medial epicondyle
I: pisiform, hamate, metacarpal 5
A: flex and adduct wrist
Flexor Digitorum Superficialis
O: medial epicondyle
I: middle phalanges 2-5
A: flexes digits on hand
Flexor Pollicis Longus
O: radius
I: distal phalanx 1 (pollex)
A: flex thumb
Extensor Carpi Radialis Brevis
O: lateral epicondyle
I: metacarpal 3
A: extend and abduct wrist
Extensor Carpi Ulnaris
O: lateral epicondyle
I: metacarpal 5
A: extend and adduct wrist
Extensor Digitorum
O: lateral epicondyle
I: middle and distal phalanges of each finger, except thumb
A: extend digits of hand
Flexor Digiti Minimi Brevis
O: flexor retinaculum
I: proximal phalanx 5
A: flex little finger
Supinator
O: lateral epicondyle
I: proximal 1/3 of radius
A: supinates forearm
Pronator Quadratus
O: ulna (distal)
I: radius (distal)
A: pronates forearm
