Name _ Date _

BODY SYSTEMS • • • • • • •• • • • • • •--.....

NERVOUS SYSTEMThe neNOUS system helps you respond to the world around you.

This system has two main divisions:

Nervous System(Brain, Spinal Cord, Nerves)

Central Nervous System Peripheral Nervous System

• Brain

• Spinal Cord

• It controls behavior.

• Nerves

• It serves internal organs.

• It is a pathway to the brainfor the five senses.

• It helps you respond to theworld around you.

The brain is divided into three main parts.Left

HemisphereRight

HemisphereCerebrum------~Controls higher processes andsenses (speech, reasoning,memory, motor, smell, touch,taste, sight hearing)

Cerebeflum-----~Coordinates motor movement

Cerebrum

Medufla----- __Controls involuntary reflexes Bacl<View of Brain

Scalp--------+VfSI<u/l---------¥().(protects brain)

Spinal Nerve --~----+-~~'"Spinal Cord------r--\lTTrI

Spinal Column=----:.--.-1:(protects spinal cord)

Brain cells, once destroyed byinjury, disease, or birth defects,cannot grow back. Their damageis irreversible.

Copyright © 1999 - Milliken Publishing Co. All rights reserved.MP3408 Body Systems

Study Guide: Nervous System Quiz Date: _

Part I: Crossword Puzzle - Look at/a diagram of~ brain and a nerve cell and be able to locate thefollowing parts: (You will be given these words)

1. cerebrum :rfI2. spinal cord r (J(!()YJp}J3. axon l.,.,V4. cerebellum5.- medulla->6. nucleus vY'7. brain stem {'l\ro.v..\ o, . Ce)'00 llLN8. dendrite . ~ \... te9. neuron \)~0 " ~~5fin~hJ

Part II: Matching - MatChthe following parts orth~ith its function. The function will be given.~\C1.cerebrum ControlS 0ctlanGe and mUSLU/M CCmrdf()Qf!Ol1

't ,~\ 2. cerebellum Con+rols thoct9hf-, volunfCtYlj moiemcoi, rrrcmor'vf IleC{(ni'!j

f\ lSD procel>6U) I() fo rmet·Pi Ov'l from ~ ~seL)

1'\ 3. medulla Con·frolS brWhi~ I hear+beat and ofherVI +a\ body proceDl1e,D

.~\ 4. spinal cord r+ relays Jm\SUI ses berwe~n +he braino nd o+h-e, r f.X-tr+ s of ,~ bcdV

·v\ 5. spinal nervesIheA.(CQ rn.ll impul~ be,~(\ -f1tre. spinalcord dha bcdy purf:j

Part III: Militip/e Choice & True/False Questions about the Nervous System. The following are questionsto help you study. Your poWer point notes about the nervous system will be helpful, as well as the twoarticles given in class: "The Nervous System" and "The Brain".

..r \ 1. What are nerve cells called? AI -eu ro n ~What are the names of the three types of nerve cells?

I· MOt-cKZ. Sen 30'<\f3· :::cV\ t-ef\

What is the job of the motor neurons? 8 STCt\(W me55~S F,om braln/SPihal cord fo rn usGl-w ,CJ(fJ=1J)

L\ 4. What is the job of sensory neurons?1 _}Oc'{w 0le5soges from rece,pwf:) IV! sbln +0

brC\\1\ D.Y\d spinal cord

.~\ 3.

~ \ 20. What is the gap between the end of an axon terminal and a dendrite called?

sy naQsis Isyno.P+rc Cieri21. What is a nerve?.lJ\'~ a drSCf£;/-e.. 'runc1le of seve;ral -fh ousand n-eGtr-o() q)LO VIS

wrOPPed acourd eaci, orh-er(1ft 22. Des~r~behow a message is tra.~smitted from one.nerve ~~IIto another. Begin with a den~d't", receiving a message and end with another dendnte receiving the message. Z.

I--- _u, ·--f\--dencl-fl+~-TeCe(V'~a.C3Vfem/ca / -rrresscrac -fr([vt-t~1-0--2. t'YlCSSQ[jG hCuJdLl dOuJn fhQ- QJLO(I C~l~'ix:d~tj TY'CNVW fv t\rIe, J-am1nc<./ axon +i'beIs€?txjt~l4 ~umps across <:\Ir)({~ -fa -the next dc;V7dnk synapl

- V7 CVldl~

.tZ- 23. The central nervous system contains what~o parts?

braiVl I spjred cordt t 24. Cranial and spinal nerves are a part of which nervous system?

C {,n-~rCt\25. How wide is the average adult spinal cord?

-r\ (\S b\3 ot: ~ pinkLj {1~1.., 26. What is the name of the thickest nerve in our body? Where is this nerve located?

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--\-\ 27. The spinal cord is protected by what part of the skeletal system?

mGkbo~/ V~lkDrO~\ 28. The brain is protected by what part of the skeletal system?

t Sku\\ I Cffihium .29. Which part of the brain interprets the things we sense through our five senses?

+\ fhCllaVY\~0

.\.--\ 30. Which part of the brain interprets our emotions?ln~pofhcdCt met $

~ \ 31. Another name for the brain stem is what?medulla

r\ 32. Deep grooves in the cerebrum are called what?

Seti c(