Florida Science Grade 6

Section 4: The Nervous System

The Nervous System

1.
How do impulses cross synapses between neurons?
A)They cross by osmosis.
B)They cross through interneurons.
C)They cross through a cell body.
D)They cross by a chemical.
2.
What are the neurons called that detect stimuli in the skin and eyes?
A)interneurons
B)synapses
C)motor neurons
D)sensory neurons
3.
What does the somatic system of the PNS control?
A)skeletal muscles
B)salivary glands
C)neurons
D)impulses
4.
What part of the eye is light finally focused on?
A)lens
B)retina
C)pupil
D)cornea
5.
Which of the following is in the inner ear?
A)cochlea
B)anvil
C)hammer
D)eardrum
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