1. Which of the following is NOT a function of the skin?
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A.It protects our bones.
B.It helps keep our bodies at just the right temperature.
C.It helps the body absorb sugary food.
D.It allows us to have sense of touch.
2. What part of the skin tells your brain how things are felt when you touch them?
A.dermis B. hair C. nerve endings D. pores
3. What makes up the Central Nervous System (CNS)?
I. brain
II. heart
III. spinal cord
IV. lungs
A.I only B. I and II C. I and III D. II and III
4. What do you call the nerve cells that relay signals from the central nervous
system to theother parts of the body?
A.messenger neurons C. motor neurons
B.sensory neurons D. interneurons
5. What tells you whether you are feeling hot, cold or in pain?
A.nerves/neurons C. brain
B.spinal cord D. skin