Upper Limb: Brachial Plexus, Arteries, Nerves Flashcards
Posterior cord -> – nerve that Innervates the deltoid m
Axillary NERVE
Name the cords of the brachial plexus and the nerves that branch off of them
Lateral cord - musculocutaneous n
Medial cord - ulnar n & median n
Posterior cord - axillary n & radial n
Lateral cord -> – nerve that Innervates the anterior compartment of the arm
Musculocutaneous nerve
Posterior cord of brachial plexus (nerves) -> – nerve Innervates posterior compartment of arm and forearm
Radial n
Ulnar n (terminal branch of brachial plexus) comes from the – cord
Medial cord
Name the 4 nerves of the arm
Musculocutaneous
Radial
Median
Ulnar
– n does NOT Innervate any muscles in the hand
Radial n
it radiates all away
In the forearm, the – n is located bw flexor digitorum superficialis and profundus
Median n
Name changes of the axillary artery and where this happens
Subclavian a -> axillary artery at lateral border of 1st rib -> brachial a at inferior border of Teres major m
Axillary artery has – branches
3
First part of axillary artery
Superior thoracic a
Second part of axillary artery
Thoraco-acromial a. (Posterior to pec minor)
Lateral thoracic a. (Long)
Borders of 3rd section of axillary artery
Lateral border of pec minor to inferior border of Teres major
Third part of axillary artery (3 arteries for 3rd part!)
Subscapular a
Anterior circumflex artery (smaller)
Posterior circumflex artery
What artery is in bw the radial and ulnar arteries?
Common interosseous artery
Brachial artery (after axillary a changed names) divides into these 3 arteries
- Deep artery of the arm - branches first, most proximal
2&3. Ulnar and radial arteries branch distal to the Cubital fossa
