Vasculature of Upper Limb (Midterm) Flashcards
The axillary a. begins at the lateral border of the…
1st rib
The axillary a. begins at the lateral border of the 1st rib and ends at the….
inferior border of the teres major
The axillary a. is divided into 3 parts by what muscle?
pec minor
What are the 4 branches of the thoraco-acromial a.?
1) clavicular branch
2) acromial branch
3) deltoid branch
4) pectoral branch
What is the 1st division/part of the axillary a.?
test q
superior thoracic a.
What is the 2nd division/part of the axillary a.?
test q
thoracoacromial a. and lateral thoracic a.
What is the 3rd division/part of the axillary a.?
test q
1) subscapular a.
2) anterior circumflex humeral a.
3) posterior circumflex humeral a.
What does the superior thoracic a. supply?
-subclavius
-muscles in the 1st and 2nd intercostal spaces
-serratus anterior
-overlying pectoral muscles
The superior thoracic a. anastomoses with…
test q
intercostal arteries and/or internal thoracic arteries
The __________________ a. is a short wide trunk that pierces the costocoracoid membrane
thoracoacromial
What does the lateral thoracic a. supply?
-pec muscles
-serratus anterior
-intercostal muscles
-axillary lymph nodes
-lateral aspect of the breast
The lateral thoracic a. travels with who?
long thoracic n.
What is the largest branch of the axillary a.?
subscapular a.
note: opposite the origin of this artery, the anterior circumflex humeral a. and posterior circumflex humeral a. arise, sometimes by means of a common trunk
The subscapular a. terminates into….
circumflex scapular a. and thoracodorsal a.
The subscapular a. has the greatest diameter and terminates into the circumflex scapular a. and thoracodorsal a. The circumflex scapular a. is larger, and it supplies the muscles on the ______________________. It participates in the anastomoses around the scapula
dorsum of the scapula
The thoracodorsal a. mostly supplies the….
lats
The thoracodorsal n. runs with who?
thoracodorsal a.
note: thoracodorsal a. participates in the arterial anastomoses around the scapula
T/F: the circumflex humeral arteries anastomose with each other
true
Which circumflex humeral artery is smaller?
anterior circumflex humeral a.
The posterior circumflex humeral a. runs with the __________ n.
test q
axillary
Which artery supplies the glenohumeral joint, deltoid, teres major and minor, and long head of the triceps?
posterior circumflex humeral a.
The axillary v. is formed by the union of the _________ v. and the __________ v.
brachial, basilic
The axillary v. (1st part) ends at the lateral border of the 1st rib, where it becomes the ___________ v.
subclavian
The axillary v. receives directly or indirectly, the _________________ vein(s), where is/are formed by the anastomoses of superficial veins from the inguinal region with tributaries of the axillary v. (usually the lateral thoracic v.)
thoracoepigastric
note: these veins constitute a collateral route that enables venous return in the presence of obstruction of the IVC)
Which a. is the main arterial supply to the arm?
brachial a.
The brachial a. is a continuation of the ________ a.
axillary
The brachial a. begins at the inferior border of the teres major and ends in the cubital fossa. It divides into ________ and ________ arteries
radial, ulnar
Which a. is this?
-its pulsations are palpable in the medial bicipital groove
brachial a.
The brachial a. accompanies the _________ n.
median
What are the 4 main branches of the brachial a.?
1) deep a. of the arm
2) nutrient a.
3) superior ulnar collateral a.
4) inferior ulnar collateral a.
The superior and inferior ulnar collateral arteries are 2 of 4 main branches for the brachial a. They help form the periarticular arterial anastomoses of the _______ region
elbow
What is the largest branch of the brachial a.?
deep a. of the arm