Blood Vessels - Other

Anterior interventricular branch

Also called the left anterior descending artery Anterior branch of the left coronary artery; lies in anterior interventricular sulcus. Supplies blood to the interventricular septum and anterior walls of both ventricles

Posterior interventricular branch

Artery that determines coronary dominance Posterior branch of the right coronary artery; lies in posterior interventricular sulcus supplies the posterior ventricular walls

Right coronary artery

What artery supplies the right atrium, right ventricle, sinoatrial and atrioventricular nodes? courses to the right side of the heart; gives rise to the right marginal artery arterial supply of atrioventricular node and the atrioventricular bundle

Ductus venosus

connects the umbilical vein to the inferior vena cava, bypassing the liver bipasses liver during fetal circulation, has to shut down to transition from fetal to neonatal circulation In fetal circulation, most of the blood bypasses the fetal liver via the ________ before it mixes with deoxygenated blood in the inferior vena cava? Hepatic shunt in fetus

Umbilical vein

delivers oxygenated blood from the placenta to the fetus

Vessels of fetal circulation

ductus arteriosus, foramen ovale, ductus venosus, umbilical arteries, umbilical vein

Coronary sulcus

groove that marks border between atria and ventricles

Pulmonary trunk

carries blood from right ventricle to pulmonary arteries Which vessel of the heart receives blood during right ventricular systole? Blood leaving the right ventricle enters this after passing through the pulmonary semilunar valve.

Coronary circulation

left and right coronary arteries; marginal branch and circumflex branch, anterior and posterior interventricular branches, great cardiac vein, middle cardiac vein, coronary sulcus

Greater cardiac vein

left coronary vein, begins at the apex of the heart and ascends along the anterior longitudinal sulcus to the base of the ventricles. found in the interventricular sulcus empties into the coronary sinus on the posterior side of the heart

Marginal branch

oxygenated blood to myocardium. largest anterior ventricular branch and runs along the lower margin of the costal surface to reach the apex lies in the coronary sulcus; supplies oxygenated blood to the walls of the right ventricle supplies blood to right ventricle

Vessels of Pulmonary circulation

pulmonary trunk, pulmonary artery, pulmonary vein

Hepatic portal vein

-A vein connecting the capillary bed of the intestines with the capillary bed of the liver. This allows amino acids and gluocse absorbed from the intestines to be delivered first to the liver for processing before being transported throughout the circulatory system. -The vessel that delivers blood from the gastrointestinal tract to the liver is the: Carries nutrients (monosaccharides, amino acids, and small fatty acids) absorbed in the small intestine to the liver, where they are modified to enter circulation.

Circumflex branch

Branch of the left coronary artery that curves around the left side and lies in the coronary sulcus. lies in the coronary sulcus and distributes oxygenated blood to the walls of the left ventricle and left atrium lies in the coronary sulcus and distributes oxygenated blood into the walls of the left atrium and ventricle

Pulmonary artery

Carries deoxygentated blood from the heart to the lungs carries deoxygenated blood from the right ventricle to the lungs.

Foramen ovale

Connects the left and right atria, allowing blood to flow directly from the right to the left side of the heart that only exists in the fetus connects the right atrium to the left atrium, bypassing the lungs

Pulmonary vein

Deliver oxygen rich blood from the lungs to the left atrium one of two pairs of vessels carrying oxygenated blood from the lungs to the left atrium of the heart vessel that carries oxygen-rich blood from the lungs to the heart Takes oxygenated blood from the lungs to the left atrium

Umbilical arteries

The blood vessels that carry deoxygenated blood to the placenta are the ________. Branches of the Internal Iliac Arteries which are involved only in fetal circulation (before birth)

Middle cardiac vein

The vein that drains the posterior ventricles. drains areas supplied by posterior interventricular branch of right coronary artery. in the posterior interventricular sulcus, which drains the areas supplied by the posterior interventricular branch of the right coronary artery

Left coronary artery

What artery supplies the left ventricle, left atrium, and interventricular septum? one of two arteries from the aorta that nourish the heart; (runs from left side of heart then divides into the circumflex and left anterior descending branches) Branches into two arteries: 1. Anterior interventricular artery - also called the left anterior descending artery, supplies the anterior surface of both ventricles and most of the interventricular septum 2. Circumflex artery - supplies the left atrium and ventricle. Shorter coronary artery that is hidden anteriorly by the pulmonary trunk.

Ductus arteriosus

a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta carries blood from pulmonary trunk to aorta Which fetal vascular shunt bypasses the pulmonary circuit by connecting the pulmonary trunk to the aorta? In a fetus, this structure allows blood to flow directly from the pulmonary trunk into the aorta. connects the pulmonary artery to the aorta, bypassing the lungs