Inside the Heart and Circulatory System

Fill-in-the-blank review cards covering the double circulatory system, the four chambers and valves of the heart, the major blood vessels, and the coronary blood supply.

The circulatory system is also sometimes referred to as the __________ system.

cardiovascular

Mammals have a double circulatory system comprising two separate circuits: the pulmonary circuit and the __________ circuit.

systemic

In the pulmonary circuit, blood flows from the heart to the __________ and then back to the heart.

lungs

The two upper chambers of the heart are known as the __________.

atria

The two chambers located at the bottom of the heart are called the __________.

ventricles

Valves located between the atria and the ventricles that prevent backflow are called __________ valves.

atrioventricular

When viewing an anatomical diagram of the heart front on, the left side of the heart is located on our __________.

right

The left ventricle has a thicker muscular wall than the right ventricle because it must pump blood all the way around the __________.

body

Deoxygenated blood enters the right atrium from the body through the largest vein, called the __________.

vena cava

When the right ventricle contracts, it pumps blood toward the lungs through the __________.

pulmonary artery

Oxygenated blood returns from the lungs to the left atrium through the __________.

pulmonary vein

When the left ventricle contracts, it pumps oxygenated blood into the largest artery in the body, called the __________.

aorta

The heart muscle itself is supplied with oxygenated blood by vessels that branch off the aorta called __________ arteries.

coronary

A blockage in the coronary arteries can result in coronary artery disease or a __________.

heart attack