Medical Quiz

The Circulatory System Quiz


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The heart is enclosed in a protective sac called __________.

A. myocardium

B. capillaries

C. valve

D. pericardium


It lets the blood being pumped from the heart to the lungs.

A. Aortic valve

B. Tricuspid valve

C. Bicuspid valve

D. Pulmonary valve


The exchange of oxygen, nutrients, and carbon dioxide, and other body wastes happen in the _______.

A. arteries

B. veins

C. capillaries

D. valve


It carries oxygen-rich blood away from the heart.

A. arteries

B. veins

C. capillaries

D. valve


The heart beats at least _____ million times during an average person’s life.

A. 2400

B. 500

C. 3500

D. 1000


Prevents the backflow of blood and ensures that blood flows only in one direction.

A. valves

B. aorta

C. ventricle

D. atrium


It carries oxygen-poor blood from the different parts of the body back to the heart.

A. arteries

B. veins

C. capillaries

D. valve


It refers to a channel or passage through which blood passes.

A. cardio

B. vascular

C. valve

D. veins


A hollow muscular organ about the size heart of a clenched fist.

A. liver

B. heart

C. lungs

D. brain


It lets blood be pumped from the heart to the rest of the body.

A. Aortic valve

B. Bicuspid valve

C. Tricuspid valve

D. Pulmonary valve


Are tubes that serve as passageways for blood to reach the different parts of the body.

A. valve

B. blood

C. blood vessels

D. ventricles


It is responsible for carrying and transporting oxygen, nutrients, antibodies, and other waste products throughout the body.

A. Digestive System

B. Muscular System

C. Circulatory System

D. Skeletal System




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