Muscles Of The Arm, Forearm, & Wrist (2) Flashcards
What is the origin of the short head of the biceps brachii?
Tip of coracoid process
What is the origin of the long head of the biceps brachii?
Supraglenoid tubercle of scapula
What is the attachment of the biceps brachii?
Tuberosity of radius
Fascia of forearm through bicipital aponeurosis
What is the function of the biceps brachii?
Supinates forearm
When supine flexes forearm
Resist dislocation of shoulder (short head)
What is the origin of the brachialis?
Distal 1/2 of anterior surface of humerus
What is the attachment of the brachialis?
Coronoid process
Tuberosity of ulna
What is the function of the brachialis?
Flexes forearm
What is the origin of the coracobrachialis?
Tip of coracoid process of scapula
What is the attachment of the coracobrachialis?
Middle 1/3 of medial surface of humerus
What is the function of the coracobrachialis?
Helps flex and Adduct arm
Resists dislocation of shoulder
What is the origin of the long head of the triceps brachii?
Infraglenoid tubercle of scapula
What is the origin of the lateral head of the triceps brachii?
Posterior surface of humerus (superior to radial groove)
What is the origin of the medial head of the triceps brachii?
Posterior surface of humerus (inferior to radial groove)
What is the attachment of the triceps brachii?
Proximal end of olecranon
Fascia of forearm
What is the function of the triceps brachii?
Chief extensor of forearm
What does the long head of the triceps brachii resist?
Dislocation of the humerus during adduction
What is the origin of the Anconeus?
Lateral epicondyle of humerus
What is the attachment of the anconeus?
Lateral surface of olecranon
What is the function of the anconeus?
Assists triceps in extending forearm
What is the origin of the ulnar head of the pronator teres?
Coronoid process
What is the origin of the humeral head of pronator teres?
Medial epicondyle of humerus
What is the attachment of the pronator teres?
Middle of convexity of lateral radius
What is the function of the pronator teres?
Pronates and flexes forearm
What is the origin of the flexor carpi radialis?
Medial epicondyle of humerus
What is the attachment of the flexor carpi radialis?
Base of 2nd metacarpal
What is the function of the flexor carpi radialis?
Flexes and abducts hand
What is the origin of the palmaris longus?
Medial epicondyle of humerus
What is the attachment of the palmaris longus?
Distal 1/2 of flexor retinaculum
Apex of palmar aponeurosis
What is the function of the palmaris longus?
Flexes hand
Tenses palmar aponeurosis
What is the origin of the humeral head of the flexor carpi ulnaris?
Medial epicondyle of the humerus
What is the origin of the ulnar head of the flexor carpi ulnaris?
Olecranon
What is the attachment of the flexor carpi ulnaris?
Pisiform
Hook of hamate
5th metacarpal