heart, upper extremities, and abdominal anatomy

blood flow in heart pathway

right atrium, right ventricle, lungs, left atrium, left ventricle

valves ensuring unidirectional flow

mitral (bicuspid), tricuspid, pulmonary, aortic

arterioles

considered resistance vessels

right and left coronary arteries

prox to arch and the first branches off ascending ao

brachiocephalic artery

first and largest branch off arch, only on the right side, aka innominate artery

left CCA

second branch off arch

left subclavian artery

third branch off arch

descending ao

extends to just above diaphragm

subclavian artery

runs laterally and downward to outer border of first rib

axillary artery

travels along shoulder to upper arm and splits into 7 branches

brachial artery

runs down arm and splits into anterior aspect

radial artery

lateral, thumb side

ulnar artery

medial, pinky side, predominant blood flow to hand

radial artery gives off branch that forms the ____ and terminates in _____

superficial palmar artery, deep palmar arch

ulnar artery gives off branch that forms the _____ and terminates in _____

deep palmar artery, superficial palmar arch

common digital arteries

arise from palmar arches and extend into the fingers, dividing into lateral/medial branches

superficial palmar feeds _____ and deep palmar feeds ____

back of hand, palm

celiac artery

supplies stomach, liver, pancreas, duodenum, and spleen

celiac branches

left gastric, splenic, and common hepatic

SMA supplies

small intestine, cecum, ascending colon, and part of trv colon

LRV orientation to AO

LRV crosses Ao anteriorly

RRA orientation to IVC

RRA is behind IVC and longer than LRA

inferior mesenteric artery

supplies left half of trv colon, descending colon, sigmoid, and part of rectum

SMA occlusion collaterals

Arc of Riolan or Marginal artery of Drummond

parietal branches

inferior phrenic, lumbar arteries, middle sacral

terminal branches

right/left CIA