Axilla Flashcards
(15 cards)
What is the Axilla?
3 dimensional space that changes shape based upon how your arm is located and moving
Pyramid shape
What are the main parts of the anterior wall
Pectoralis major
Subclavius
Pectoralis minor
Clavipectoral fascia
What makes up the medial wall?
Serratus Anterior
Thoracic wall / ribs
What makes up the base of the axilla?
Axillary fascia
Skin
Adipose tissue
Allows passage of nerves, blood vessels,lymphatics
What makes up the posterior wall of the axilla?
Suprascapular foramen
Subscapularis
Teres major
Lats
Long head of the tricep
What makes up the lateral side of the axilla?
Intertubercular sulcus of the humerus
What runs through the axilla?
Axillary artery and vein ( main artery and vein that supply blood to arm)
Lymph nodes
Brachial plexus
What is the purpose of the brachial plexus?
It’s a network of nerves in the shoulder that carry movement and sensory signals from the spinal cord to the arm and hands
What is the responsibility of the brachial plexus
It’s responsibility is for motor innervation of all the muscles in the upper extremity except for 2
Levator scapula
Trapezius
Where does the brachial plexus start from?
C5 C6 C7 C8 T1
What are the nerves from the brachial plexus?
Musculocutaneous
Median
Radial
Ulnar
Axillary
What are the 5 sections of the brachial plexus?
Roots, trunks, divisions, cords, branches
What is the special name to remember the brachial plexus?
Robin thick drinks cold beer
What are the branches of the Axillary artery (HoTeL SPA) 6
Highest thoracic artery
Thoracic-acromial artery
Lateral thoracic artery
Subscapular artery
Posterior humeral circumflex artery
Anterior humeral circumflex artery
What are the main veins in the Axilla region?
Axillary vein
Cephalic vein (lateral)
Basilic vein (median)
Median cubital vein
