Chapter 12
which of the following are divisions of the PNS? a) somatic nervous system b) autonomic nervous system c) Enteric nervous system d) All of these choices
d) All of these choices
49) Which of the following structures is labeled B in the diagram? a) axon terminal b) trigger zone c) cell body d) peripheral process e) dendrites
d) peripheral process
56) What specific type of unipolar neuron is shown in the diagram labeled B? a) Type I cutaneous mechanoreceptor (Merkel disc) b) Corpuscle of touch (Meissner corpuscle) c) Lamellated (Pacinian) corpuscle d) nociceptor e) Purkinje cell
(a) ) Type I cutaneous mechanoreceptor (Merkel disc)
Which of the neurons is considered to be a bipolar neuron? a) A b) B c) C d) All of the neurons. e) None of the neurons.
(d) All of the neurons.
9) This type of nervous tissue contains neuronal cell bodies, dendrites, unmyelinated axons, axon terminals, and neuroglial cells. a) Gray matter b) White matter c) Nissl bodies d) Ganglia e) Nuclei
a) Gray matter
69) Hearing your cell phone ring in an otherwise quiet lecture hall is an example of which of the following types of nervous system functions? a) Sensory function b) Integrative function c) Motor function d) More than one of the types of nervous system functions e) None of the types of nervous system functions
a) Sensory function
54) Which of the following types of neurons have one axon and one dendrite emerging from the cell body and are found in the retina of the eye, inner ear, and olfactory region of the brain?
a) bipolar neuron
What is the structural classification of the neuron labeled B? a) bipolar neuron b) multipolar neuron c) unipolar neuron d) nonpolar neuron e) pseudounipolar
a) bipolar neuron
7) This type of neuron has one dendrite and one axon emerging from the cell body. a) Multipolar neuron b) Bipolar neuron c) Unipolar neuron d) Purkinje cell e) Renshaw cell
b) Bipolar neuron
19) Faster communication and synchronization are two advantages of a) chemical synapses b) electrical synapses c) ligand-gated channels d) voltage-gated channels e) mechanically-gated channels
b) electrical synapses
Which of the following structures is labeled D in the diagram? a) axon terminal b) trigger zone c) cell body d) peripheral process e) dendrites
b) trigger zone
A bipolar neuron or bipolar cell, is a type of neuron which has ____ extensions (one ____ and one _______ ).
two axon; dendrite
62) Name the type of membrane channel that randomly opens and closes and is found in dendrites, cell bodies, and axons of all types of neurons. a) leakage channel b) ligand-gated channel c) mechanically gated channel d) voltage-gated channel e) pressure-sensitive channel
a) leakage channel
Which of the labeled cells in the figure is NOT a neuroglial cell? a) A b) B c) C d) D e) F
c) C
33) This part of a neuron contains the nucleus and cytoplasm of the Schwann's cell that has formed a myelin sheath around the axon. a) C b) D c) E d) F e) G
c) E
55) Which of the following types of neurons is exclusively found in the cerebellum? a) bipolar neuron b) multipolar neuron c) Purkinje cells d) unipolar neuron e) pyramidal cells
c) Purkinje cells
3) The motor portion of the autonomic nervous system can be divided into a) somatic and sympathetic divisions. b) somatic and parasympathetic divisions. c) enteric and somatic divisions. d) sympathetic and parasympathetic divisions. e) voluntary and involuntary divisions.
d) sympathetic and parasympathetic divisions.
65) Name the type of membrane channel that opens in response to changes in membrane potential and is located in axons of all types of neurons. a) leakage channel b) ligand-gated channels c) mechanically gated channels d) voltage-gated channels e) temperature-sensitive channel
d) voltage-gated channels
In the CNS, this structure is produced by oligodendrocytes. a) A b) B c) C d) D e) E
e) E
61) Which of the labeled cells in the diagram is a neuroglial cell that produces and assists in the circulation of cerebrospinal fluid? a) A b) B c) C d) D e) F
e) F- (basal cells )
