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Terms in this set (32)
name the borders of the apex of the axilla
clavicle, superior border of the scapula and the first rib medially
how bout the base?
skin and fascia of the armpit
anterior axillary fold (pec major), pec minor, and clavipectoral fascia
posterior axillary fold (teres major and latissimus dorsi) and subscapularis muscles) page 33 of dissector
upper portion of the thoracic wall, and the serratus anterior which overlies it
intertubercular sulcus of the humerus
the axillary vein is formed at the lateral border of the teres major by the joining of what two veins?
the two brachial veins
when does the name of the axial artery change to the brachial artery?
when it crosses below the inferior border of teres major
what muscle defines the three parts of the axillary artery?
name the first branch off the axillary A. and what it supplies
the superior thoracic artery supplies the first and second intercostal spaces.
name the two branches off the second part of the axillary artery
the thoracoacromial artery and lateral thoracic artery
the thoracoacromial artery arises medial to the pec minor, and gives off four branches. Name them.
pectoral, acromial, deltoid, and clavicular
where will you find the lateral thoracic artery?
branching off the second part of the axial artery, running down the lateral border of pec minor
what does the lateral thoracic artery supply?
pectoral muscles, serratus anterior, axillary lymph nodes, lateral thoracic wall.
If it does not arise from the second part of the axillary artery, from what other two arteries can the lateral thoracic a. arise?
subscapular or thoracoacromial
How many arteries come off the third part of the axillary?
name them pussy
subscapular, posterior and anterior circumflex humeral aa.
the subscapular artery off the third part of the axillary a. divides into two branches. Name them and what they supply.
circumflex scapular artery to muscles on the posterior surface of the scapula and the thoracodorsal artery to the latissimus dorsi.
what do the anterior and posterior circumflex humeral arteries supply?
the deltoid, bro
with what nerve does the posterior circumflex humeral artery pass through the quadrangular space with?
the axillary nerve
does the anterior circumflex humeral artery pass deep or superficial to the tendon of the long head of the biceps brachii?
what does robert taylor drinks cold beer stand for?
roots, trunks, divisions, cords, branches
what nerve which enters the coracobrachialis muscle can you follow proximally to find the lateral cord of the bracial plexus?
musculocutaneous (the most lateral branch)
from lateral to medial, name the three branches that make the M of the brachial plexus
musculocutaneous, median, ulnar
Superficial to which segment of the axillary artery is this M formed?
name the three proximal and two terminal branches of the posterior cord
axillary nerve, radial nerve, and three subscapular nerves (upper, middle, and lower) fig 2.14 in dissector
as the radial nerve leaves the axilla, descibe its relation to the humerus, teres major, and latissimus dorsi
posterior to the humerus, but anterior to teres major and latissimus dorsi
which is the only sensory nerve to the posterior side of the upper limb?
the radial nerve
what do the upper, middle and lower subscapular nerves that branch off the posterior cord and run in the loose connective tissue on the anterior surface of the subscapularis muscle innervate?
upper innervates the subscapularis m., middle innervates the lat, and lower innervates subscapularis and teres major
name the medial and lateral attachments and action of the subscapularis muscle
medially to the subscapular fossa of the scapula, laterally to the lesser tubercle of the humerus. Acts to medially rotate the arm
Do the same for serratus anterior
anteriorly to the external surfaces of ribs 1-8 or 9, posteriorly to the anterior surface of the medial border of the scapula. Acts to protract the scapula and rotate it especially when the arms is abducted above the horizontal plane
what cervical roots form the long thoracic nerve and what does it innervate?
C5,6,7 and it innervates serratus anterior
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