______1. Which body system maintains the internal order within by coordinating the

activities of the muscles and organs, receives inputs from the sense organs, and

trigger reactions?



A. Circulatory system C. Respiratory system

B. Nervous system D. Digestive system

_____ 2. Which is the largest part of the brain that controls voluntary actions?

A. Septum C. Cerebellum

B. Cerebrum D. Brain stem

_____ 3. What kind of blood vessels carry oxygenated blood from the heart to all parts of

the body?

A. Veins C. Capillaries

B. Arteries D. Dendrites

_____ 4. Which system is responsible for the transport of blood and dissolve substances

to various parts of the body?

A. Muscular system Nervous system

B. Skeletal system Circulatory system

_____ 5. Why the peripheral nervous system is important?

A. Reacts quickly and protect the body from harm

B. Carries nutrients to all parts of the body

C. Largest part of the brain

D. Protect the spinal cord

_______6. Which blood vessels carry blood contain carbon dioxide from the cell back to

your heart?

A. septum

B. veins

C. arteries

D. capillaries

_______ 7. How the brain stem works for the body?

A. Carries oxygenated blood to all parts of the body.

B. Controls involuntary movement such as breathing.

C. Carries deoxygenated blood to all parts of the body.

D. Controls voluntary actions through speech and memory.
_______ 8. In which the part the actual exchange of materials between blood and

connective tissue fluid occurs?



A. Veins

B. Septum

C. Ventricles

D. Capillaries

______ 9. Why blood is necessary to the human body?



A. Carries food and gases throughout the body cells

B. Controls the movement of the body

C. Fight disease carrying organisms

D. Produces bone marrow

______ 10. Why white blood cells are important?



A. Carry oxygen and carbon dioxide

B. Develop the cells that produced bone marrow

C. Carry antibodies to fight disease – causing germs

D. Attack and destroy disease carrying organisms that get into the bloodstream

______ 11. Which chamber receives oxygen – rich blood from the lungs?



A. Veins

B. Arteries

C. Right atrium

D. Left atrium

_______ 12. How ventricles help in the circulatory system?



A. Pathways of the body

B. Carry blood containing oxygen

C. Carry blood containing carbon dioxide

4. Pump the blood out of the heart through the arteries

______ 13. Which of the following allow us to sense and react to our environment?

A. cerebrum

B. cerebellum

C. brain stem

D. peripheral nerves

_____14. Which carry information to the cell body in the form of an electrical signals?

A. axon

B. arteries

C. dendrites

D. ventricles
______ 15. Why the heart is important in the circulatory system?

A. Pumps blood through the body

B. Controls movements of the body

C. Fight infection in the blood stream

D. Bring signals to the brain and to the nerves​