Name: _______________________________________________________________________________________ Hour: ______________
Nervous System Introduction Worksheet
Anatomy & Physiology/Nervous System
1. What is the role of the nervous system in the body? ___________________________________________________________________________
_________________________________________________________________________________________________________________________________________
2. What are the three main functions of the nervous system?
a. ____________________________________________________________________________________________________________________________
b. ____________________________________________________________________________________________________________________________
c. ____________________________________________________________________________________________________________________________
3. Imagine that you have just stepped out of your warm car, into the very cold winter weather. Explain how your nervous system will respond, using the three functions of the nervous system listed above to frame your answer.
4. Define the term “sensory input”: _________________________________________________________________________________________________
_________________________________________________________________________________________________________________________________________
5. Define the term “integration”: ____________________________________________________________________________________________________
_________________________________________________________________________________________________________________________________________
6. Define the term “motor output”: _________________________________________________________________________________________________
_________________________________________________________________________________________________________________________________________
7. CNS is an abbreviation for what term? __________________________________________________________________________________________
8. PNS is an abbreviation for what term? ___________________________________________________________________________________________
9. Explain the difference between the CNS and the PNS: __________________________________________________________________________
_________________________________________________________________________________________________________________________________________
10. Explain how the CNS and the PNS work together: _____________________________________________________________________________
_________________________________________________________________________________________________________________________________________
11. What are the two parts of the PNS? ____________________________________________ & ____________________________________________
12. Which part of the PNS control skeletal muscles? _________________________________________
13. Which part of the PNS controls temperature receptors in our skin? ________________________________________
14. Using the example from Question 3: What would be the role of each part of the PNS in responding to the change?
_________________________________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________________________________
15. Using the terms listed in the word bank, label the parts of the neuron below:
A. Schwann’s cells B. Axon C. Dendrites D. Nucleus E. Myelin Sheath
F. Node of Ranvier G. Axon Terminals H. Cell Body