Axilla/ Brachial Plexus/ Cubital fossa Flashcards
What are the anterior boundaries of the axilla
pectoralis major, pectoralis minor, subclavius, claviopectoral fascia
what are the posterior boundaries of the axilla
latissimus dorsi, teres major, subscapularis,
What are the medial boundaries of the axilla
serratus anterior and ribs
what are the lateral boundaries of the axilla
humerus, coracobrachialis, short head of the biceps
what is the apex made up of
1st rib, scapula, and clavicle
what is the claviopectoral fascia and what does it contain
A fascia that helps the movements of muscles aganist each other and supports the axilla. It contains the subclavius, pectoralis major, pectoralis minor, and the clavicle
what does the axillary sheath contain
vessels and nerves
what pierces the axillary sheath
cephalic vein
The first part of the axillary artery is ________ to the pectoralis major
medial
The second part of the axillary artery is ________ to the pectoralis major
deep
The third part of the axillary artery is ________ to the pectoralis major
lateral
what are the branches that come off the first part of the axillary artery? What does it supply
superior thoracic artery, the first two intercostal spaces
what are the branches that come off the second part of the axillary artery
thoraoacromial trunk (includes the deltoid, pectoral, clavicular, acromial branches), and the lateral thoracic artery
what does the lateral thoracic artery supply
serratus anterior, pectoralis muscles, axillary lymph nodes
what are the branches that come off the third part of the axillary artery
subscapular artery (divides into circumflex scapular artery and thoracodorsal artery), posterior circumflex artery, anterior circumflex artery
what does the posterior circumflex artery supply
deltoid and tricep muscles
what are the 5 main groups of axillary lymph nodes
apical, central, lateral, posterior/subscapular, and anterior/pectoral
the dorsal scapular nerve supplies
rhomboids, and levator scapulae
the long thoracic nerve supplies
serratus anterior
suprascapular nerve supplies
supraspinatus and infraspinatus
subclavian nerve supplies
subclavius
muscocutaneous nerve supplies
bicep brachii, brachialis, and coracobrachialis
median nerve supplies
all flexors in the anterior forearm except flexor carpi ulnaris and flexor digitorum profundus
radial nerve supplies
all extensors in the posterior forearm and arm
thoracodorsal supplies
latissimus dorsi
axillary nerve supplies
deltoid and teres minor
lower subscapular nerve supplies
teres major and subscapularis (with upper subscapular)
muscles of the anterior compartment of the arm
bicep brachii, coracobrachialis, brachialis
the blood supply of the ______ artery supplies the anterior compartment of the arm
brachial artery
the blood supply of the ________ artery supplies the posterior compartment of the arm
profundi brachii
the profundi brachii runs along with the
radial nerve
lateral edge of the cubital fossa
brachioradialis
medial edge of the cubital fossa
pronator teres
the floor of the cubital fossa
medial floor- brachialis// lateral floor- supinator
the roof of the cubital fossa
superficial fascia of the anterior elbow
what are the contents of the superficial layer of the cubital fossa
lateral and medial antebrachial cutaneous nerve, lateral and medial cutaneous nerve of the forearm, median cubital vein, basilic and cephalic veins
what are the contents of the deep layer of the cubital fossa
radial nerve, bicep brachii tendon, brachial artery, portion of its terminal radial and ulnar arterial branches, median nerve, and ulnar nerve
