Upper Limb Vasculature Flashcards
What does the subclavian a. branch into?
Sunclavin a. > Axillary a. > Brachial a. > Ulnar & radial aa.
What are the 3 divisions of the axillary a. related to and what are the branches off them?
Related to their position to pec minor m. (before, under, after)
1st part:
1. Sub thoracic a: supplies upper thoracic cavity
2nd part:
1. Thoracoacromial a: supplies pectoral/deltoid region
2. Lateral thoracic a: supplies lateral thoracic wall
3rd part:
1. Subscapular a: Supplies scapular region
2. Anterior circumflex a:
3. Posterior circumflex a:
-> both turn around surgical neck and supply muscles on proximal end of humerus
Where is the axillary a. pulse found?
axilla
Where does the brachial A. begin and end?
-BEGINS: at lower border of teres minor/pectorialis major.
-ENDS: at cubital fossa - splits into ulnar & radial a.
Where is the brachial a. pulse found?
midarm, cubital fossa
What are the main branches of the brachial a (2)?
- Deep Brachial/profunda brachii a: supplies posterior arm
-moves post > radial groove (with radial nerve) - Muscular branches (2-5): supplies anterior musculature.
Which is the larger more numerous branch of the brachial a?
ulnar a.
What does the ulnar a. supply (4)?
- elbow,
- medial anterior compartment & deep ones
- majority of posterior
- wrist joint.
What a. forms the palmer arterial arches?
ulnar a.
What does the radial a. supply (4)?
- elbow
- lateral anterior compartment
- lateral posterior
- wrist joint
what artery passes through the snuff box?
Radial a.
What arteries form the deep palmer arch?
radial & ulnar aa.
What artery is a major source of blood supply for the dorsal hand?
Radial a.
2 types of venous return?
- Deep: run with arteries & take their names
- Superficial: run in superficial fascia
Superficial venous return pathway?
dorsal venous network drains into cephalic (thumb side) & basilic (pinky side).
-cephalic and basilic v are connected via median cubital v (cubital fossa)
- cephalic and basilic drain into axillary v.
-axillary v. drains into subclavian v.
-subclavian v. drains into brachiocephalic v.