Glencoe Biology

Chapter 33: Nervous System

Chapter Test Practice-English

1
_____ are sensory receptors found on the human tongue.
A)Neurons
B)Olfactory nerves
C)Choroids
D)Taste buds
2
A (an) ____ is a natural or artificial substance that alters the function of the body.
A)ion
B)neuron
C)drug
D)pons
3
A (an) ____ careis nerve impulses from the cell body to other neurons and muscles.
A)axon
B)dendrite
C)nucleus
D)reflex arc
4
Alcohol is an example of what type of drug?
A)stimulant
B)depressant
C)inhalant
D)prescription
5
Chemical fumes that influence the nervous system are called ____.
A)inhalants
B)stimulants
C)neurotransmitters
D)dendrites
6
Look at this illustration of the human ear's internal structure. Which part of the ear receives vibrations from the eardurm?

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A)oval window
B)stapes
C)cochlea
D)semicircular canals
7
The ____ nervous system carries impulses from the central nervous system to the heart and other organs.
A)autonomic
B)somatic
C)cerebral
D)muscular
8
The ____ regulates body temperature, thirst, appetite, and water balance.
A)pons
B)hypothalamus
C)cerebrum
D)central nervous system
9
This illustration shows a cross section of the human eye. Which part of the eye does light enter first?

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A)the lens
B)the pupil
C)the cornea
D)the iris
10
What are the gaps on the myelin sheath called?
A)axons
B)thresholds
C)nodes
D)cell bodies
11
What could cause a person with brain cancer to have lost balance and decreased coordination?
A)cancer has damaged pons
B)cancer has damaged hypothalamus
C)cancer has damaged cerebellum
D)cancer has damaged pons and hypothalamus
12
What does this figure represent?

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A)a nerve impulse on a myelinated axon
B)potassium diffusing through myelin
C)a non-myelinated nerve impulse
D)a reflex arc
13
What happens when an action potential is produced with a signal that is stronger than threshold?
A)stronger action potential generated
B)action potential has same strength as threshold
C)weaker action potential generated.
D)no action potential generated
14
What is the large brain structure just below the skull?

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A)medulla oblongata
B)pons
C)hypothalamus
D)cerebrum
15
What would be the hypothetical result if a person lacked motor neurons?
A)would be unable to feel a deep cut
B)would be unable to breath
C)would be unable to feel a hot plate
D)would be unable to swing hammer
16
Whicch of these is part of the inner ear?
A)malleus
B)incus
C)cochlea
D)eardrum
17
Which of the statements is true of reflexes?
A)All reflex signals must go to the brain.
B)They require conscious thought.
C)They are slow and gradual responses.
D)They are involuntary.
18
Which of these statements about the human sense of touch is NOT true?
A)Joints and muscles tissues contain receptors that respond to heavier pressure.
B)There are very few receptors on the soles of a person's feet.
C)Pain receptors are found in all body tissues except for those in the brain.
D)Receptors that sense cold are found close to the skin's surface
19
Which of these statements is not true regarding drugs that effect the nervous system?
A)They can permanently replace neurotransmitters in the brain.
B)They can imitate a neurotransmitter.
C)They can prevent neurotransmitters from leaving a synapse.
D)They can block a receptor site on a dendrite.
20
Which of these would not be a factor in drug addiction?
A)decreased dopamine level after quiting
B)tolerance to a depressant
C)normal dopamine level maintained during drug use
D)increased dopamine level due to a drug
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