WCU PHYS 261 Week 3 Quiz: Ch 8, 9,
10 Questions with Verified Answers
Multiple sclerosis (MS) is a central nervous system disorder that results from
demyelination of axons in the central nervous system. Which type of tissue would be
least at risk for damage from MS? - ANSWERSgray matter
Inhibitory postsynaptic potentials (IPSPs) - ANSWERSresult in hyperpolarizations
Match the type of signal to its description.
A. graded potential
B. action potential
C. both
originate(s) on dendrites and cell bodies - ANSWERSgraded potential
The ion necessary to initiate the release of acetylcholine into the synaptic cleft is -
ANSWERScalcium
The brain and spinal cord together compose the - ANSWERScentral nervous system
Match the stimulus to the type of receptor that typically responds to it.
A. chemoreceptor
B. mechanoreceptor
oxygen - ANSWERSchemoreceptor
The cilia of the hair cells of the semicircular canals are embedded in the -
ANSWERScupula
Which of the following is NOT a similarity between hearing and equilibrium? -
ANSWERSthey both respond to sound waves
Match the term with its description.
A. ependymal cells
B. astrocytes
C. satellite cells
D. schwann cells
E. oligodendrocytes
F. microglia
10 Questions with Verified Answers
Multiple sclerosis (MS) is a central nervous system disorder that results from
demyelination of axons in the central nervous system. Which type of tissue would be
least at risk for damage from MS? - ANSWERSgray matter
Inhibitory postsynaptic potentials (IPSPs) - ANSWERSresult in hyperpolarizations
Match the type of signal to its description.
A. graded potential
B. action potential
C. both
originate(s) on dendrites and cell bodies - ANSWERSgraded potential
The ion necessary to initiate the release of acetylcholine into the synaptic cleft is -
ANSWERScalcium
The brain and spinal cord together compose the - ANSWERScentral nervous system
Match the stimulus to the type of receptor that typically responds to it.
A. chemoreceptor
B. mechanoreceptor
oxygen - ANSWERSchemoreceptor
The cilia of the hair cells of the semicircular canals are embedded in the -
ANSWERScupula
Which of the following is NOT a similarity between hearing and equilibrium? -
ANSWERSthey both respond to sound waves
Match the term with its description.
A. ependymal cells
B. astrocytes
C. satellite cells
D. schwann cells
E. oligodendrocytes
F. microglia
