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WorksheetsNervous system
Total questions: 33
Worksheet time: 15mins
Which is not one of the main parts of
a neuron?
axon
cell body
dendrites
nucleus
Another name for a nerve impulse
is _______.
synapse
threshold
reflex arc
action potential
What occurs when a motor neuron
synapses with a muscle cell?
muscle contracts
muscle relaxes
pain
numbness
What type of neuron begins a reflex arc?
interneuron
motor neuron
sensory neuron
transmitter neuron
What is another name for nerve impulse?
synapsis
threshold
action potential
neurotransmitter
A stronger stimulus will cause a stronger
action potential.
True
False
When a neuron is at rest, what maintains the high concentration gradients of potassium ions inside the cell and sodium ions outside the cell?
diffusion
osmosis
active transport
A. ion channels
Which is not part of the central nervous
system?
brain
spinal cord
interneurons
sensory neurons
What does the cerebrum regulate?
breathing and heart rates
complex motor skills
sleep, aggression, and fear
voluntary body movements
Some reflexes are processed only in the
spinal cord and do not need input from the
brain.
True
False
What is a nerve?
A. a bundle of axons
A. a chain of neurons
What part of the nervous system is usually
under voluntary control?
autonomic nervous system
somatic nervous system
sympathetic nervous system
parasympathetic nervous system
What are sensory receptors?
cells that create action potentials and thresholds
localized areas of the central nervous system
chemicals that cross a synapse between two nerve cells
specialized neurons for detecting the world around you
Which part of the eye contains light-
detecting receptors?
A
B
C
D
What is the function of the optic nerve?
It forms a visual image.
It sends action potentials to the brain.
It interprets light intensity and colours.
Where are sound vibrations converted
into nerve impulses?
A
B
C
D
Where are the sensory receptors that
detect your body’s position and motion?
A
B
C
D
Why is caffeine a drug?
It is a depressant.
It is an artificial substance.
It influences the nervous system.
It builds tolerance to its effects.
Which neurotransmitter is influenced by
nicotine and is involved with most types of addiction?
adenosine
dopamine
epinephrine
serotonin
Which is not a stimulant?
alcohol
caffeine
nicotine
What is the term for the body’s decreased
response to a drug?
addiction
dependence
tolerance
withdrawal
When people who are addicted try to quit, why
is it difficult to resist going back to the drug?
Adenosine levels increase.
Dopamine levels decrease.
The central nervous system slows down.
Action potentials in neurons become stronger
Physiological dependence on a drug is
stronger than psychological dependence.
True
False
Name the part of the brain that is responsible for memory.
hypothalamus
medulla oblongata
cerebrum
cerebellum
What part of the brain is identified in the image?
pons
cerebrum
hypothalamus
medulla oblongata
How do nerve impulses travel in a neuron?
A. dendrite cell body axon
B. dendrite cell body axon
C. dendrite cell body axon
What carries signals from the axon of one neuron to the dendrite of another neuron?
interneurons
ion channels
neural nodes
neurotransmitters
Which word best describes the hypothalamus?
processor
reflexor
regulator
transmitter
What part of the brain is highly developed in animals that have finely tuned balance and complex coordination?
A. cerebellum
medulla
thalamus
A. temporal lobe
How do the sympathetic and parasympathetic
nervous systems act together?
They send and receive neurotransmitters.
They send opposing signals to the same organs
They balance voluntary and involuntary responses
They receive the same impulses from different receptors
Why is this receptor located closest to the surface of the skin?
It detects cold.
It detects heat.
It detects heavy pressure.
It detects light touch.
What substances in the body are most
closely associated with a drug’s influence
on the nervous system?
endorphins
Na+ and K+ ions
neurotransmitters
proteins
Where in the nerve pathway do drugs
have their primary effect?
axons
dendrites
synapses
myelin sheaths
