Flashcards in 2.6 Axilla Deck (58)
What is the lateral boundary of the axilla?
intertubercular groove of the humorous
What is the medial boundary of the axilla?
ribs, intercostal muscles and serrates anterior
What is the posterior boundary of the axilla?
subscapularis, latissimus dorsi, teres major
What is inclosed in the axillary sheath?
axillary vessels, axillary lymph nodes, and brachial plexus
Where does the transition between subclavian and axillary arteries begin?
lateral edge of the 1st rib
Axillary artery becomes the brachial artery as it passes the ...
lower border of teres major muscle
The 1st segment of the axillary artery is ... to the pectorals minor m.
The 2nd segment of the axillary artery is ... to the pectorals minor m.
The 3rd segment of the axillary artery is ... to the pectorals minor m.
What is the branch of the 1st segment of the axillary artery?
superior thoracic a.
Superior thoracic a. supplies muscles in...
the 1st two intercostal spaces
What are the 2 branches of the 2nd segment of the axillary artery?
thoracoacromial a (acromial, deltoid, pectoral) and lateral thoracic a.
What are the 3 branches of the 3rd segment of the axillary artery?
subscapular a (circumflex scapular a. and thoracodorsal a), post. humeral circumflex a. and ant. humeral circumflex
Where is the axillary vein in relation to the axillary artery?
The axillary vein is formed by the union of what 2 veins?
basilic and brachial vv.
The cephalic v lies in the deltopectoral groove and pierces the clavipectoral fascia to drain into the ...
Deep lymphatics accompany the deep veins and terminate in the ...
humeral (lateral) axillary lymph nodes
Superficial lymphatics enter in to what ...
cubital lymph nodes or humeral (lateral) axillary lymph nodes
superficial lymphatics of accompanying the cephalic vein drain to the ...
apical axillary lymph nodes
Lymphatics from the anterior chest wall and breast drain into which axillary lymph nodes?
pectoral (anterior) axillary lymph nodes
Lymphatics from the upper back and shoulder drain into which axillary lymph nodes?
subscapular (posterior) axillary lymph nodes
inflammation of axillary lymph nodes may cause pain as in ...
Following resection of metastatic nodes severe... may result due to lack of appropriate lymphatic return in upper limb
The brachial plexus is a network of nerves supplying what innervation to the upper extremity?
somatic sensory, somatic motor, and sympathetic
The brachial plexus is formed by the union of ...
ventral primary rami of C5-T1
Roots are the ventral rami emerging from the spinal cord and located between what muscles?
anterior and middle scalene mm.
What are the 2 nerves coming of the roots of the brachial plexus?
dorsal scapular n. and long thoracic n.
What is the path of innervation of the dorsal scapular n?
C5 to rhomboid muscles and elevator scapulae m.
What is the path of innervation of the long thoracic n?
C5-C7 to serrates ant. m.