Anatomy of the Human Heart

The heart is composed of how many chambers?

4

The healthy adult heart normally beats approximately how many times each minute?

72

This waxy, fat-like substance is found in the body and may contribute to heart disease by sticking to the walls of arteries.

Cholesterol

Which side of the heart generates the greatest force to move blood?

Left

This is the name of a group of specialized cells, located within the wall of the right atrium, which initiates the human heart beat ____.

SA node

These vessels carry blood away from the heart ____, while these vessels carry blood toward the heart ____.

arteries, veins

Name three factors, within each person's control, that greatly affect the long-term health of your heart.

get plenty of exercise, eat healthy foods, and avoid stress

This valve sits between the left atrium and the left ventricle ____. It is also known as ____.

mitral, bicuspid

Significant blockage of a coronary artery will result in reduced blood flow to, and eventual death of the cells of the heart. The result of this blockage is called a ____.

myocardial infarction

The coronary arteries that supply the heart muscle with oxygenated blood originate off of this vessel ____, just on the far side of this valve ____.

pulmonary trunk, aorta

This vein brings blood from the upper extremities, head, neck, and brain, and deposits it in the right atrium.

superior vena cava

The right side of the heart collects blood from ____, and sends it to the ____.

vena cavae, lungs