WorksheetsTopic 11 HBC
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
What are the two main divisions of the nervous system?
a)
Central and Peripheral
b)
Sympathetic and Parasympathetic
c)
Somatic and Autonomic
d)
Brain and Spinal Cord
2.
Which structure is part of the central nervous system?
a)
Brain
b)
Nerves
c)
Ganglia
d)
Axon terminals
3.
How many pairs of cranial nerves leave the brain?
a)
12
b)
15
c)
31
d)
10
4.
What is the primary function of sensory neurons?
a)
Carry information to the CNS
b)
Carry information away from the CNS
c)
Support and protect neurons
d)
Transmit motor signals
5.
Where does the action potential begin in a neuron?
a)
Axon hillock
b)
Dendrite
c)
Synaptic cleft
d)
Myelin sheath
6.
What term describes the change in the membrane potential from -65 mV to +40 mV?
a)
Depolarization
b)
Repolarization
c)
Hyperpolarization
d)
Resting potential
7.
What happens when potassium ions move out of the axon?
a)
Repolarization
b)
Depolarization
c)
Hyperpolarization
d)
Action potential
8.
What is the refractory period in an action potential?
a)
A period when the sodium channels cannot reopen
b)
A period when potassium channels open
c)
A period when the membrane is fully polarized
d)
A period when neurotransmitters are released
9.
Where are action potentials generated in a myelinated axon?
a)
Nodes of Ranvier
b)
Axon terminals
c)
Synaptic cleft
d)
Dendrites
10.
What is the role of the presynaptic membrane in the synapse?
a)
Releases neurotransmitters
b)
Receives neurotransmitters
c)
Generates action potentials
d)
Inhibits neurotransmitters
11.
What is synaptic integration?
a)
Summing up excitatory and inhibitory signals
b)
Generating a single action potential
c)
Blocking all neurotransmitters
d)
Amplifying signals
12.
What is the primary neurotransmitter used in the parasympathetic division?
a)
Acetylcholine
b)
Dopamine
c)
Serotonin
d)
Epinephrine
13.
What is the function of the autonomic nervous system?
a)
Regulate involuntary body functions
b)
Control voluntary movements
c)
Send sensory signals to the CNS
d)
Support motor functions
14.
Which neurotransmitter is known for its role in promoting the "rest and digest" response?
a)
Acetylcholine
b)
Norepinephrine
c)
Dopamine
d)
Serotonin
15.
What type of reflex is the knee-jerk response?
a)
Spinal reflex
b)
Cranial reflex
c)
Autonomic reflex
d)
Somatic reflex
16.
What does the sympathetic nervous system primarily do?
a)
Prepares the body for "fight or flight"
b)
Maintains homeostasis
c)
Slows down the heart rate
d)
Stimulates digestion
17.
What is the main effect of the parasympathetic nervous system?
a)
Promotes "rest and digest" functions
b)
Increases heart rate
c)
Stimulates glucose production
d)
Inhibits breathing
18.
What does a reflex arc involve?
a)
A pathway of nerve impulses that produce a reflex
b)
An automatic response in the brain
c)
A single muscle contraction
d)
A direct signal to the heart
19.
Where are ganglia found in the nervous system?
a)
Outside the CNS
b)
Inside the CNS
c)
Only in the brain
d)
Only in the spinal cord
20.
What is the role of a motor neuron in the peripheral nervous system?
a)
Carry information away from the CNS
b)
Carry information to the CNS
c)
Process information in the CNS
d)
Maintain body temperature
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