North Carolina Science Grade 7

Chapter 10: Control and Coordination

Control and Coordination

1.
Which of these is NOT part of your brain?
A)the cerebrum
B)the cerebellum
C)the cochlea
D)the cortex
2.
The division of the peripheral nervous system that regulates your ability to snap your fingers is __________.
A)the autonomic system
B)the digestive system
C)the reproductive system
D)the somatic system
3.
The division of the peripheral nervous system that regulates your heart beat is __________.
A)the skeletal system
B)the autonomic system
C)the muscular system
D)the somatic system
4.
A lens that is thicker at the edges than in the middle is called __________.
A)an optic lens
B)a concave lens
C)a convex lens
D)an inverted lens
5.
Which of the following dissolves food in your mouth?
A)palate
B)saliva
C)esophagus
D)acid
6.
Which of the following does the skin NOT sense?
A)temperature
B)pressure
C)taste
D)pain
7.
__________ is a stimulant that can cause your heart to beat faster and make you feel restless.
A)Alcohol
B)Salt
C)Caffeine
D)MSG
8.
__________ receive messages and send them to the cell body of the neuron.
A)Reflexes
B)Axons
C)Synapses
D)Dendrites
9.
__________ carry messages away from the cell body of the neuron.
A)Axons
B)Senses
C)Dendrites
D)Lenses
10.
Which of these is the largest part of your brain?
A)the cerebellum
B)the pons
C)the medulla
D)the cerebrum
11.
The __________ is the front part of your eye.
A)retina
B)cochlea
C)hammer
D)cornea
12.
One part of the central nervous system is the __________.
A)brain
B)appendix
C)cochlea
D)retina
13.
When you walk outside, the bright sunlight can cause you to quickly shut your eyes. What is the sunlight?
A)an internal stimulus
B)an impulse
C)an overdose
D)an external stimulus
14.
People who are farsighted cannot clearly see objects __________.
A)until they are over 65 years old
B)unless they remove their glasses
C)that are more than 3 m away from them
D)that are less than 1 m away from them
15.
When your finger accidentally gets caught in a door, the pain message is sent to your brain through __________.
A)homeostasis
B)the medulla
C)caffeine
D)sensory receptors
16.
One function of your inner ear is to maintain __________.
A)impulses
B)balance
C)gravity
D)stimuli
17.
Which part of your brain has ridges and grooves on it?
A)the cortex
B)the medulla
C)the pons
D)the midbrain
18.
After you run 50 m as fast as you can, you might be out of breath. What process causes your breathing to return to its regular pattern?
A)reasoning
B)stimuli
C)homeostasis
D)impulses
19.
A lens that is thicker in the middle and thinner at the edges is called __________.
A)a concave lens
B)a convex lens
C)a focal lens
D)a refracting lens
20.
A stimulus is a change inside or outside your body that brings about __________.
A)a stimulant
B)a paralysis
C)a response
D)a reflex
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