Chpt 13 Test
In which of the following locations would you find a somatic sensory receptor?
skeletal muscle
Which does NOT affect the speed of an action potential along an axon?
the amount of neurotransmitter binding to the dendrites of the neuron
The myelin sheath _____.
increases the speed of an impulse
Which of the following occurs in the afferent division of the peripheral nervous system?
A neuron carries information from the stomach area to the brain.
It is possible for an axon to synapse with __________.
All of the listed responses are correct.
Which of the following statements accurately compare(s) neuroglia to neurons?
All of the listed responses are correct.
Which of the following statements is FALSE regarding the myelin sheath and myelination?
Myelinated axons are covered by Schwann cells in the PNS, whereas unmyelinated axons have no Schwann cells associated with them.
Which of the following correctly describes the myelin sheath?
Myelinated tissue is known as white matter.
Which of the following is FALSE regarding chemical synapses?
None of the listed responses is false; all are true.
Which of the following is FALSE regarding the myelin sheaths of neurons?
Only large-diameter axons in the PNS are covered in myelin. Small-diameter axons are also short and require no myelin.
Which of the following statements about oligodendrocytes and/or Schwann cells is correct?
Schwann cells provide a framework for growth when an axon has been cut and is in the process of regenerating.
What would you NOT be able to find in a section of gray matter from the CNS?
axon bundles that transmit messages to the upper and lower limbs
If Julie is in a store deciding whether or not to buy a new purse, her decision-making thought process requires activity from which part of the nervous system?
central nervous system
Which of the following is an activity of the nervous system?
detection of pain after a bee sting
Which cell monitors the composition of the CSF in the CNS?
ependymal cell
If a disease erodes away the myelin sheath on a PNS axon, what structure will have been removed?
neurilemma
Which of the following cells produce the myelin sheath?
oligodendrocytes and Schwann cells
Lynn is taking a yoga class and closes her eyes while transitioning from one pose to another. Which of the following instructs her brain to tell her whether or not she is in the correct position for the new pose?
proprioceptors
Which of the following is NOT a function of the nervous system?
the monitoring of blood pressures throughout the body
