Circulatory System

This chamber of the heart RECEIVES blood returning from the body

• Right Atrium
• Right Ventricle
• Left Atrium
• Left Ventricle

The relaxing/filling stage of the cardiac cycle?

• Systole

• Diastole

The type of blood vessel that normally carries de-oxygenated blood back to the heart from body cells?

• arteries

• capillaries

• veins

The type of blood vessel that normally carries oxygenated blood from the heart to the body cells?

• arteries

• capillaries

• veins

The type of blood vessel where exchange of gases, nutrients, and wastes occurs?

• arteries

• capillaries

• veins

The substance that makes up the majority of blood is:

• Plasma

• Lymph

• Erythrocytes

• Basophils

The components of blood that protect against pathogens is

• Plasma

• Platelets

• Erythrocytes

• Leukocytes

The part of blood that carries oxygen to cells is:

• Plasma

• Platelets

• Erythrocytes

• Leukocytes

The pulmonary trunk carries blood from which heart chamber into the pulmonary circuit?

• Left atrium.

• Right atrium.

• Left ventricle.

• Right ventricle.

Regardless of the heart chamber, contraction is called ____________ and relaxation, ____________.

• Diastole, systole.

• Systole, diastole.

• Fibrillation, defibrillation.

• Defibrillation, fibrillation.