Medical Quiz

Nervous System Functioning Quiz


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The ______ carries a neural message within a neuron.

A. soma

B. action potential

C. neurotransmitter

D. myelin sheath


A neurotransmitter will have its effect when it

A. reaches an axon terminal.

B. binds to its receptor.

C. contacts a dendrite.

D. enters the synapse.


The neurons in the spinal cord are part of the _____ nervous system.

A. central

B. peripheral

C. somatic

D. autonomic


Sensory information is best described as _____ information.

A. afferent

B. efferent

C. internal

D. external


Which of the following bodily functions results from parasympathetic nervous system action?

A. increased salivation

B. increased perspiration

C. increased respiration

D. decreased stomach contractions


An important role of an axon is to

A. carry a neural message towards a neighbouring neuron.

B. carry a neural message away from a neighbouring neuron.

C. integrate neural information and speed up its transmission.

D. insulate a neuron to speed up its transmission.


Parkinson’s disease motor symptoms are most commonly associated with

A. an excessive amount of dopamine in motor pathways.

B. loss of dopamine as it travels along motor pathways.

C. overproduction of dopamine in the substantia nigra.

D. a depleted amount of dopamine in the substantia nigra.


The peripheral nervous system transmits information between the _____ and the _____.

A. central nervous system; spinal cord

B. spinal cord; muscles, organs and glands

C. sensory receptors, muscles, organs and glands; central nervous system

D. somatic nervous system; muscles, organs and glands


A synapse is

A. a neural connection.

B. a type of neurotransmitter.

C. the place where neurons communicate.

D. the part of the neuron on which small extensions grow.


The division of the nervous system that is generally self-regulating is called the _____ nervous system.

A. central

B. somatic

C. autonomic

D. peripheral


The two major divisions of the central nervous system are the _____ and the two major divisions of the peripheral nervous are the _____.

A. somatic and autonomic systems; brain and spinal cord

B. brain and peripheral system; somatic and sympathetic systems

C. somatic system and spinal cord

D. brain and spinal cord; autonomic and somatic systems


The _____ nervous system automatically restores bodily systems to their normal level of functioning after the need for heightened activity has passed.

A. somatic

B. central

C. sympathetic

D. parasympathetic


A mosquito lands on your arm. You watch it carefully then move your hand to swat it. Your sensation and response are due to _____ activity.

A. spinal reflex

B. autonomic nervous system

C. somatic nervous system

D. parasympathetic nervous system


A major function of the somatic nervous system is to

A. carry neural messages between the CNS and internal organs and glands.

B. maintain the body’s internal states.

C. carry motor messages to the CNS.

D. transmit information from sensory receptors to the CNS.


The single projection from a neuron’s soma is the

A. dendrite

B. axon

C. collaterals.

D. terminal.


The autonomic nervous system

A. controls movements of skeletal muscles.

B. initiates movements of skeletal muscles.

C. controls the activities of visceral muscles, organs and glands.

D. controls virtually all thoughts, feelings and behaviours.


A major function of the spinal cord is to

A. protect the spinal column.

B. connect the brain and central nervous system.

C. initiate voluntary muscle movements.

D. connect the brain and peripheral nervous system.


You are working quietly in the library when a friend sneaks up from behind and scares you, making your heart race. At this time, your _____ nervous system would be dominant.

A. parasympathetic

B. sympathetic

C. somatic

D. central


The _____ nervous system initiates skeletal muscle movement, whereas the _____ nervous system regulates the activity of visceral muscles.

A. somatic; autonomic

B. parasympathetic; sympathetic

C. autonomic; somatic

D. peripheral; sympathetic


The substantia nigra is located in the _____ region of the brain.

A. midbrain

B. forebrain

C. hindbrain

D. motor


Jana was diagnosed with paraplegia after a horse riding accident and can no longer walk. She is unable to do so because her _____ nervous system cannot communicate with her _____ nervous system.

A. central; autonomic

B. somatic; central

C. somatic; sympathetic

D. autonomic; sympathetic


Sensory pathways carry information to the _____ and motor pathways carry information from the _____ .

A. somatic nervous system; peripheral nervous system

B. central nervous system; somatic nervous system

C. central nervous system; central nervous system

D. peripheral nervous system; peripheral nervous system




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