Brachial Plexus Flashcards
What forms the brachial plexus
Anterior Rami of C5 to T1
Which muscle does the musculocutaneous nerve pierce and where is it found?
Coracobrachialis, and runs down the arm between brachial and biceps brachii
What happens to the musculocutaneous nerve?
Becomes Lateral cutaneous nerve in the forearm
Where does the axillay nerve run between?
The quadrangular space with the posterior circumflex humeral artery
How does the Radial nerve enter the arm?
Via triangular interval alongside profunda brachii artery
Where is the median nerve from?
Comes from M shape and enters the cubital fossa medial to brachial artery
Which muscles does the median nerve innervate in the hand?
LOAF - Lateral 2 lumbricals Opponens pollicis Abductor pollicis brevis Flexor pollicis brevis
Where does the ulnar nerve run?
Posterior to medial epicondyle
What muscles of the hand does the ulnar nerve innervate?
All except LOAF
What is the pneumonic for remembering the roots of the brachial Plexus
Three Musketeers - Musculocutaneous Assassinated - Axillary Five Rats - Radial Five Mice - Median and Two Uniforms - Ulnar
