Arm Flashcards
What muscles make up the anterior compartment of the arm?
Biceps Brachii, Brachialis, brachioradialis, coracobrachialis, pronator Teres
What muscles make up the posterior compartment of the arm?
Triceps & anconeus
What innervates the biceps Brachii?
Musculocutaneous nerve
What innervates the Brachialis?
Musculocutaneous nerve
What innervates the Brachioradialis?
Radial nerve
What innervates the Coracobrachialis?
Musculocutaneous nerve
What nerve innervates the pronator Teres?
Median nerve
Blood supply for biceps Brachii:
Brachial artery
Blood supply for Brachialis:
Brachial artery
Blood supply for brachioradialis:
Brachial artery
Blood supply for Coracobrachialis:
Brachial artery
Blood supply to median nerve:
Ulnar artery
Action of biceps Brachii:
Flexes elbow & supinates forearm
Action of Brachialis
Flexes elbow
Action of brachioradialis
Flexes elbow
Action of Coracobrachialis
Flexes and adducts arm
Action of pronator Teres
Pronates forearm
Biceps Brachii: O/I
(Short head) coracoid process & (long head) supraglenoid tubercle of scapula / Radial tuberosity (in capsule)
Brachialis: O/I
Humerus / Tuberosity & Coronoid process of ulna
Pronator Teres: O/I
Humeral head (radius) / ulnar head (radius)
What muscles make up the posterior compartment of arm?
Triceps & Anconeus
Triceps: nerve, blood supply, action, O/I
Radial, Brachial, extension, (insertion) olecranon process of the ulna
Anconeus: nerve, blood supply, action, O/I
Radial, brachial, extension, (insertion) olecranon process of the ulna
