Ch 18 Cardiovascular Sys (Heart)

Major branch of the left coronary

artery that follows the anterior interventricular sulcus

Branch of the left coronary artery that follows coronary sulcus

Large, thin-walled vein on the posterior surface of the heart that lies within the atrioventricular sulcus

and drains the heart myocardium directly into the right atrium

Branch of the right coronary artery that runs

along the posterior portion of the interventricular sulcus toward the apex of the heart and gives rise to branches that

supply the interventricular septum and portions of both ventricles

Large systemic vein that returns blood to the heart from the superior portion of the body

Clump of myocardial cells located in the inferior portion of the right atrium within the

atrioventricular septum; receives the impulse from the SA node, pauses, and then transmits it into specialized

conducting cells within the interventricular septum

Tags

NGSS.HS-LS1-2

(also, bundle of His) group of specialized myocardial conductile cells that transmit the

impulse from the AV node through the interventricular septum; form the left and right atrioventricular bundle

branches

(also, interatrial band) group of specialized conducting cells that transmit the impulse directly

from the SA node in the right atrium to the left atrium

Specialized myocardial conduction fibers that arise from the bundle branches and spread the impulse to

the myocardial contraction fibers of the ventricles

(also, left atrioventricular valve or bicuspid valve) valve located between the left atrium and ventricle;

consists of two flaps of tissue