Nervous System Test Questions with
Verified Answers
What are the General Functions of the Nervous System? - Ans -To maintain body
homeostasis with electrical signals, provide for sensation, higher mental functioning, and
emotion response, and activate muscles and glands.
Explain the structural classification of the nervous system - Ans -Central nervous
system and Peripheral nervous system. The PNS is divided into somatic and autonomic
branches. Autonomic contains the Sympathetic and parasympathetic systems.
Explain the functional classification of the nervous system - Ans -There are sensory
neurons which carry information to the CNS and motor neurons which carry information
from the CNS
Distinguish between the central and peripheral nervous system - Ans -CNS contains
the Brain and Spinal cord; interprets information.
PNS sends and receives information from the CNS
List the different types of glial cells and the functions of each type - Ans -Astrocytes-
protect nerves from harmful substances in the blood.
Microglia- phagocytes that dispose of dead cells
Ependymal cells- circulate CSF
Oligodendrocytes- responsible for myelin sheaths
Schwann cells- creates myelin sheaths in the PNS
Satalite cells- act as protective cushioning cells
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What is the main function of a neuron? - Ans -highly specialized to transmit
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messages from one part of the body to another
, What are the three functional classifications of neurons? - Ans -afferent, efferent,
and interneurons.
Define reflex arc and list it's elements. - Ans -Reflex arcs are reflexes that occur over
neural pathways. Sensory receptor, afferent neuron, integration center, efferent neuron,
and effector organ.
What are the functions of the major regions of the cerebral hemispheres? - Ans -
Parietal lobe holds somatic sensory area. Occipital lobe holds visual area. Temporal lobe
holds auditory area. Frontal lobe holds primary motor area. Broca's area involved in
speach. Corpus callosum connects the hemispheres.
What are the functions of the major regions of the diencephalon? - Ans -Thalamus is
a relay station for sensory impulses. Hypothalamus regulates body temperature, balance,
and metabolism, houses limbic system. Epithalamus holds the choroid plexus which form
CSF.
What are the functions of the major regions of the brain stem? - Ans -Cerebral
peduncles convey impulses. Corpora Quadrigemina are reflex centers involved in vision
and hearing. Pons control breathing. Medulla Oblongata controls heart rate, blood
pressure, breathing, swallowing, and vomiting. Reticular Formation has motor control of
visceral organs, RAS controls awake sleep cycles.
What are the functions of the major regions of the cerebellum? - Ans -Involved in fine
motor control.
Name three meningeal layers and state the functions of each. - Ans -Dura mater, Pia
mater, Arachnoid mater. All cover and protect CNS structures.
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Verified Answers
What are the General Functions of the Nervous System? - Ans -To maintain body
homeostasis with electrical signals, provide for sensation, higher mental functioning, and
emotion response, and activate muscles and glands.
Explain the structural classification of the nervous system - Ans -Central nervous
system and Peripheral nervous system. The PNS is divided into somatic and autonomic
branches. Autonomic contains the Sympathetic and parasympathetic systems.
Explain the functional classification of the nervous system - Ans -There are sensory
neurons which carry information to the CNS and motor neurons which carry information
from the CNS
Distinguish between the central and peripheral nervous system - Ans -CNS contains
the Brain and Spinal cord; interprets information.
PNS sends and receives information from the CNS
List the different types of glial cells and the functions of each type - Ans -Astrocytes-
protect nerves from harmful substances in the blood.
Microglia- phagocytes that dispose of dead cells
Ependymal cells- circulate CSF
Oligodendrocytes- responsible for myelin sheaths
Schwann cells- creates myelin sheaths in the PNS
Satalite cells- act as protective cushioning cells
1
What is the main function of a neuron? - Ans -highly specialized to transmit
Page
messages from one part of the body to another
, What are the three functional classifications of neurons? - Ans -afferent, efferent,
and interneurons.
Define reflex arc and list it's elements. - Ans -Reflex arcs are reflexes that occur over
neural pathways. Sensory receptor, afferent neuron, integration center, efferent neuron,
and effector organ.
What are the functions of the major regions of the cerebral hemispheres? - Ans -
Parietal lobe holds somatic sensory area. Occipital lobe holds visual area. Temporal lobe
holds auditory area. Frontal lobe holds primary motor area. Broca's area involved in
speach. Corpus callosum connects the hemispheres.
What are the functions of the major regions of the diencephalon? - Ans -Thalamus is
a relay station for sensory impulses. Hypothalamus regulates body temperature, balance,
and metabolism, houses limbic system. Epithalamus holds the choroid plexus which form
CSF.
What are the functions of the major regions of the brain stem? - Ans -Cerebral
peduncles convey impulses. Corpora Quadrigemina are reflex centers involved in vision
and hearing. Pons control breathing. Medulla Oblongata controls heart rate, blood
pressure, breathing, swallowing, and vomiting. Reticular Formation has motor control of
visceral organs, RAS controls awake sleep cycles.
What are the functions of the major regions of the cerebellum? - Ans -Involved in fine
motor control.
Name three meningeal layers and state the functions of each. - Ans -Dura mater, Pia
mater, Arachnoid mater. All cover and protect CNS structures.
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