Circulatory System Practice Test

The circulatory system consists of what three parts?

• Heart

• Brain

• Blood

• Blood vessels

• Liver

What is the function of the heart?

• Protects organs and produces red blood cells.

• Generates heat.

• Breaks down food into nutrients.

• To acts as a pump to move the blood.

Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?

• digestive

• nervous

• circulatory

• endocrine

______________ are the smallest blood vessels.

• Arteries

• Veins

• Capillaries

• Brochioles

These blood cells help fight infection and other diseases.

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

Which blood part helps clot blood when an organism gets cut?

• RBC

• WBC

• Plasma

• Platelets

The main function of the circulatory system is 

• To give the body structure and support
• Excrete waste
• transport blood, nutrients, and gases throughout the body
• to transport messages from the body to the brain

These cells, in the blood, carry oxygen and give the blood its color.

• white blood cells

• plasma

• platelets

• red blood cells

Blood vessels that carry blood away from the heart.

• Veins

• Capillaries

• Arteries

Blood vessels that carry blood to the heart.

• Veins

• Capillaries

• Arteries