Nervous System and Special Senses Quiz
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The ability to respond to a stimulus is termed:
A. conductivity
B. depolarized
C. all-or-nothing response
D. polarized
A neuron with a cell body located in the CNS whose primary function is connecting other neurons is called a(n):
A. interneuron
B. afferent neuron
C. efferent neuron
D. glial cell
Which of the following is NOT considered a special sense:
A. smell
B. touch
C. singing
D. vision
The area of the brain stem that plays a role in consciousness and the awake/sleep cycle is the:
A. pineal gland
B. reticular activating system
C. thalmus
D. cerebellum
Which structure regulates the size of the pupil:
A. iris
B. retina
C. cornea
D. sclera
Which of the following is NOT considered a structure of the ear:
A. conjuctiva
B. tympanic membrane
C. auditory canal
D. organ of corti
An action potential:
A. is essential for nerve impulse propagation
B. involves the influx of negative ions to depolarize the membrane
C. involves the outflux of negative ions to depolarize the membrane
D. involves the outflux of positive ions to depolarize the membrane
The structure responsible for a person’s eye color is the:
A. retina
B. sclera
C. iris
D. cornea
Allows light waves to enter the eye
A. sclera
B. iris
C. pupil
D. cornea
Impulse conduction is fastest in neurons that are:
A. myelinated
B. unmyelinated
C. sensory
D. motor
The term central nervous system refers to the:
A. autonomic and peripheral nervous systems
B. brain spinal cord and cranial nerves
C. spinal cord and spinal nerves
D. brain and spinal cord
Lobe that contains the primary motor area that enables voluntary control of skeletal muscle movements:
A. parietal lobe
B. temporal lobe
C. occipital lobe
D. frontal lobe
Afferent nerves are called ______, and motor nerves are called ______.
A. motor nerves; sensory nerves
B. peripheral nerves; cranial nerves
C. mixed nerves; motor nerves
D. sensory nerves; efferent nerves
The olfactory area is found within the:
A. temporal lobe
B. frontal lobe
C. occipital lobe
D. parietal lobe
What are the specialized nerve cells that sense smell?
A. olfactory nerves
B. motor neurons
C. glossopharyngeal
D. optic nerve
Loss of muscle coordination results from damage to the:
A. cerebrum
B. cerebellum
C. thalamus
D. midbrain
Which one of the following is the correct sequence of events that follows a threshold potential:
1. the membrane becomes depolarized
2. sodium channels open and sodium ions diffuse inward
3. the membrane becomes repolarized
4. potassium channels open and potassium ions diffuse outward while sodium is actively transported out of the cell
.
A. 3,2,4,1
B. 2,1,4,3
C. 2,1,3,4
D. 1,2,4,3
The Schwann cells form a myelin sheath around the:
A. dendrites
B. cell body
C. axon
D. nucleus
The elevated ridges of tissue on the surface of the cerebral hemispheres are known as ______ while the shallow grooves are termed ______.
A. gyri; sulci
B. sulci; gyri
C. ganglia; gyri
D. tracts; ganglia
A. sodium
B. chloride
C. calcium
D. potassium
Where are the three bones of the ear found
A. middle ear
B. inner ear
C. outer ear
D. auditory canal
Preparing the body for “fight-or-flight” response during threatening situations is the role of the:
A. sympathetic nervous system
B. cerebrum
C. parasympathetic Nervous System
D. somatic nervous system
This portion of the ear is responsible for directing sound waves into the eardrum.
A. outer ear
B. middle ear
C. inner ear
D. eustachian tube
The peripheral nervous system consists of:
A. spinal nerves only
B. the brain only
C. cranial nerves only
D. the spinal and cranial nerves
The neuron processes that normally receives incoming stimuli are called:
A. axons
B. dendrites
C. neuronelemmas
D. schwann cells
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