Right coronary artery

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Artery: Right coronary artery
Sternocostal surface of heart. (Right coronary artery visible at left.)
ARTERIES:
RCA = right coronary
AB = atrial branches
SANB = sinuatrial nodal
RMA = right marginal
LCA = left coronary
CB = circumflex branch
LAD/AIB = anterior interventricular
LMA = left marginal
PIA/PDA = posterior descending
MARG = left marginal
AVN = atrioventricular nodal

VEINS:
SCV = small cardiac
ACV = anterior cardiac
AIV/GCV = great cardiac
MCV = middle cardiac
CS = coronary sinus
Gray's subject #142 546

The right coronary artery (RCA) originates above the right cusp of the aortic valve. It travels down the right atrioventricular groove, towards the crux of the heart.

At the origin of the RCA is the conus artery.

In addition to supplying blood to the right ventricle (RV), the RCA supplies 25% to 35% of the left ventricle (LV).

In 85% of patients, the RCA gives off the posterior descending artery (PDA). In the other 15% of cases, the PDA is given off by the left circumflex artery. The PDA supplies the inferior wall, ventricular septum, and the posteromedial papillary muscle.

The RCA also supplies the SA nodal artery in 60% of patients. The other 40% of the time, the SA nodal artery is supplied by the left circumflex artery.

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Arteries of thorax, abdomen, and pelvis edit

pulmonary - aorta - ascending aorta
right coronary (sinuatrial nodal, atrioventricular nodal, atrial, right marginal, posterior interventricular)
left coronary (anterior interventricular, left circumflex, left marginal)
aortic arch - brachiocephalic - thyreoidea ima - common carotid | (Gray's s141-Gray's s143)

DESCENDING AORTA / THORACIC AORTA: bronchial - esophageal - posterior intercostal - subcostal | (Gray's s153)

ABDOMINAL AORTA: Anterior - celiac: left gastric

splenic: pancreatic branches (arteria pancreatica magna) - short gastric - left gastro-omental

common hepatic: proper hepatic (cystic), right gastric, gastroduodenal (right gastro-omental, superior pancreaticoduodenal)

superior mesenteric: inferior pancreaticoduodenal - intestinal - ileocolic (appendicular) - right colic - middle colic

inferior mesenteric: left colic - sigmoid - superior rectal

Posterior - Visceral: middle suprarenal - renal (inferior suprarenal) - testicular/ovarian - Parietal: inferior phrenic (superior suprarenal) - lumbar - median sacral

Terminal branches: common iliac - marginal - internal iliac | (Gray's s154)

INTERNAL ILIAC: Anterior: umbilical (superior vesical, to ductus deferens) - inferior vesical - middle rectal - uterine (azygos of the vagina) - vaginal - obturator
internal pudendal: (inferior rectal, perineal, artery of the urethral bulb, urethral, deep artery of the penis, dorsal artery of the penis)
inferior gluteal (accompanying of ischiadic nerve, crucial anastomosis)
Posterior: iliolumbar - lateral sacral - superior gluteal | (Gray's s155)

EXTERNAL ILIAC: inferior epigastric (cremasteric) - deep circumflex iliac | (Gray's s156)