| Term | Definition |
|
origin of short head of biceps brachii |
coracoid process of scapula |
|
origin of long head of biceps brachii |
supraglenoid tubercle of scapula |
|
insertion of biceps brachii |
radial tuberosity |
|
function of biceps brachii |
elbow flexion, forearm supination, long head also helps with GH stabilization & flexion |
|
innervation of biceps brachii |
musculocutaneous nerve (C5-6) |
|
origin of brachialis |
anterior distal half of humerus |
|
insertion of brachialis |
coronoid process and ulnar tuberosity |
|
function of brachialis |
elbow flexion |
|
innervation of brachialis |
musculocutaneous nerve (C5-6) |
|
origin of brachioradialis |
lateral supracondylar ridge of humerus |
|
insertion of brachioradialis |
styloid process of radius |
|
function of brachioradialis |
elbow flexion |
|
innervation of brachioradialis |
radial nerve (C5-6) |
|
origin of long head of triceps brachii |
infraglenoid tubercle of scapula |
|
origin of lateral head of triceps brachii |
posterior humerus, superior to the radial groove |
|
origin of medial head of triceps brachii |
posterior humerus, inferior to the radial groove |
|
insertion of triceps brachii |
olecranon process of ulna |
|
function of triceps brachii |
elbow extension (long head helps with shoulder extension) |
|
innervation of triceps brachii |
radial nerve (C7-8) |
|
origin of anconeus |
lateral epicondyle of humerus |
|
insertion of anconeus |
lateral olecranon & proximal posterior ulna |
|
function of anconeus |
stabilizes humeroulnar joint & assists triceps with elbow extension |
|
innervation of anconeus |
radial nerve (C7-8) |
|
origin of supinator |
lateral epicondyle of humerus and posterior ulna |
|
insertion of supinator |
proximal lateral radius |
|
function of supinator |
forearm supination |
|
innervation of supinator |
radial nerve (C6) |
|
origin of pronator teres |
medial epicondyle of humerus & coronoid process of ulna |
|
insertion of pronator teres |
lateral radius, midshaft |
|
function of pronator teres |
forearm pronation |
|
innervation of pronator teres |
median nerve (C6-7) |
|
origin of pronator quadratus |
anterior distal ulna |
|
insertion of pronator quadratus |
anterior distal radius |
|
function of pronator quadratus |
forearm pronation |