Human Heart and Circulatory System Worksheet

Which structures normally contain oxygenated blood?

• A) A, B, H, and I

• B) A, C, E, and F

• C) B, D, G, and H

• D) B, C, G, and F

A structure that prevents the backflow of blood into an atrium is indicated by letter

• G

• B

• C

• H

Which chamber of the heart pumps deoxygenated blood to the lungs?

• 1

• 2

• 3

• 4

The human heart is separated into left and right sides. This type of structure provides for the

• separation of oxygenated blood from deoxygenated blood

• prevention of blood clots in the ventricles

• pumping of blood directly into the atria from the ventricles

• circulation of blood in an open circulatory system

In which heart diagram do the arrows correctly represent the path of blood flow?

• [Diagram A]

• [Diagram B]

• [Diagram C]

• [Diagram D]

Structures specialized for returning blood to the heart are known as

• arteries

• veins

• lacteals

• bronchioles

Which transport vessel is correctly paired with its usual function?

• lymph vessels – add blood toward the heart

• capillary – provides a site for the exchange of materials between the blood and body tissues

• artery – filters bacteria and dead cells from the lymph and the blood

• vein – produces white blood cells

A pulse can be detected most easily in

• an artery

• a vein

• a capillary

• a lacteal

Which vessel would normally contain the highest systolic and diastolic blood pressure?

• 1

• 2

• 3

Which vessel contains valves and transports blood back to the heart?

• 1

• 2

• 3