LS CH21 Section 1 Nervous System

Name: ______________________   Date: ____________

Write the missing letters on the lines to finish each word.

1.
n r s s s m
The sensory and control apparatus consisting of a network of nerve cells
2.
e o n
A cell that is specialized to conduct nerve impulses
3.
m l e
4.
c t a
A workplace that serves as a telecommunications facility where lines from telephones can be
5.
p e r r a
Electronic equipment external to the circuit board that contains the CPU of a computer
6.
e n r e
7.
x o
Long nerve fiber that conducts away from the cell body of the neuron
8.
n s o
9.
c e o r
A cellular structure that is postulated to exist in order to mediate between a chemical agent
10.
v e
Any bundle of ___ fibers running to various organs and tissues of the body
11.
i n
That part of the central nervous system that includes all the higher nervous centers
12.
r b l l u
A major division of the vertebrate brain
13.
e b r u
Anterior portion of the brain consisting of two hemispheres
14.
d l l
Lower or hindmost part of the brain
15.
e l x
An automatic instinctive unlearned reaction to a stimulus
16.
c e
Tiniest unit of living things
17.
i n m a i
A message received and understood
18.
m s a
A communication that is written or spoken or signaled
19.
b u d
20.
k i n g
The process of using your mind to consider something carefully
21.
h m i p r
Half of the terrestrial globe
22.
u s c
One of the contractile organs of the body
23.
p i
Emotional distress
24.
s i o
The perceptual experience of seeing