Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
27 Cards in this Set
- Front
- Back
axilla
upper boundaries-bony |
anterior-clavicle
posterior-scapula medial-1st rib through the space created by these superior boundaries, contents from the neck travel into the axilla... -cervico-axillary canal |
|
anterior axillary fold (wall)
|
muscular
lower edge of pec major pec minor subclavius (partially) double layer of specialized fascia |
|
double layer of specialized fascia
|
costocoracoid membrane
clavipectoral fascia |
|
posterior wall
|
combination of bone and muscle, musculoskeletal
-lat dorsi -teres major -subscapularis -scapula |
|
medial wall
|
also musculoskeletal
serratus anterior ribs 2-6 intercostal muscles |
|
lateral wall
|
bony, but very small
intertubercular sulcus of humerus |
|
where is the pec ridge?
where is the terel ridge? |
pectoral ridge is where pec major attaches o lateral lip of crest of greater tubercle
-terel ridge is where teres major attaches to intertubercular sulcus |
|
contents of axilla
|
3 tendons of 2 muscles
-biceps (both heads) -coracobrachialis 3 cords of brachial plexus axillary artery axillary vein |
|
clavipectoral fascia
|
completely envelopes pec minor, partially envelops subclavius
|
|
costocorocoid membrane occurs when
|
there is a double layer of clavipectoral fascia between these 2 muscles
|
|
deltopectoral triangle, costocoracoid membrane is pierced by 3 structures
|
lateral pec nerve
thoracoacromial artery cephalic vein |
|
major arteries of trunk, head, and upper extremity
|
aorta
-left subclavian a. -left common carotid -brachiocephalic a. -right subclavian a. -right common carotid a. |
|
subclavian artery begins where and ends where
|
begins at the aorta (L) or at the bifurcation of brachiocephalic a.
-ends at first rib |
|
subclavian artery is divided into 3 parts by anterior scalene m.
|
1st part, before anterior scalene m.
2nd part, behind anterior scalene m. 3rd part, after anterior scalene m. but medial to 1st rib |
|
axillary artery
|
continuation of subclavian a. lateral to 1st rib
|
|
axillary artery has 3 parts
|
1st, lateral to 1st rib, medial to pec minor
2nd, posterior to pec minor 3rd, lateral to pec minor, superomedial teres minor |
|
what happens when axillary artery is distal to teres minor?
|
it becomes the brachial a.
|
|
branches of axillary a.
|
acromial
clavicular pectoral deltoid |
|
branches of axillary a.
3 parts |
1st, supreme thoracic a.
2nd, thoracoacromial trunk, lateral thoracic a. 3rd, anterior humeral circumflex a. posterior humeral circumflex a. subscapular a. (largest branch) -thoracodorsal a. -circumflex scapular a. |
|
spaces
|
quadrangular space
triangular space |
|
quadrangular space
borders |
borders
-teres major-inrferior -teres minor-superior -long head of triceps-medial -surgical neck of humerus-lateral |
|
quadrangular space
contents |
axillary nerve
posterior humeral circumflex a. |
|
triangular space
borders |
teres major-inferior
teres minor-superior long head of triceps-lateral |
|
triangular space
contents |
circumflex scapular a.
what is it's parent artery? |
|
the apex of the axilla
|
cervicoaxillary canal
|
|
the base of the axilla forms he
|
axillary fossa (armpit)
|
|
posterior wall of axilla explained
|
scapula and subscapularis are anterior surface
teres major and lat dorsi are inferior |