PNB 2264 Final Cumulative ACTUAL Exam Questions and CORRECT Answers
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Course
PNB 2264
Institution
PNB 2264
PNB 2264 Final Cumulative ACTUAL
Exam Questions and CORRECT Answers
A neuron that carries temperature information from the surface of the skin to the spinal cord
would be classified as:
a. An Afferent (Sensory) Neuron
b. An Efferent (Motor) Neuron
c. A Bipolar Neuron
d. An Anaxonic Neuron
...
PNB 2264 Final Cumulative ACTUAL
Exam Questions and CORRECT Answers
A neuron that carries temperature information from the surface of the skin to the spinal cord
would be classified as:
a. An Afferent (Sensory) Neuron
b. An Efferent (Motor) Neuron
c. A Bipolar Neuron
d. An Anaxonic Neuron
e. An interneuron - CORRECT ANSWER- ✔✔a. An Afferent (Sensory) Neuron
The division of the nervous system which includes the brain and spinal cord is:
a. The cerebral nervous system
b. The somatosensory system
c. The central nervous system
d. The peripheral nervous system - CORRECT ANSWER- ✔✔c. The central nervous system
A neuron responsible for transmitting pain information to the brain could be functionally
classified as:
a. Efferent
b. Afferent
c. Glial
d. Bipolar - CORRECT ANSWER- ✔✔b. Afferent
In the nervous system, communication through the synapse is most often:
a. Chemical
b. Electrical
c. Mechanical
d. None of the above - CORRECT ANSWER- ✔✔a. Chemical
The dorsal horn of the spinal cord contains _______________ .
,a. Cell bodies of unipolar sensory neurons
b. Synapses between unipolar sensory neurons and interneurons
c. Axons of motor neurons
d. Cell bodies of motor neurons - CORRECT ANSWER- ✔✔b. Synapses between unipolar
sensory neurons and interneurons
Which of these occurs when light strikes photoreceptors?
a. The photoreceptor cell membrane become depolarized.
b. The photoreceptors fire action potentials.
c. The concentration of cyclic GMP inside photoreceptors decreases.
d. There is an increase in GABA release from photoreceptors. - CORRECT ANSWER- ✔✔c.
The concentration of cyclic GMP inside photoreceptors decreases.
Which of the following is true about the cerebellum?
a. It is located in the brain stem.
b. When damaged, resting tremor and other abnormal involuntary movements result.
c. It compares the movement in progress to the intended movement.
d. All of the above - CORRECT ANSWER- ✔✔c. It compares the movement in progress to
the intended movement.
The primary somatosensory cortex (S1) is contained in the ____________ and the primary
visual cortex (V1) is contained in the ___________.
a. Occipital lobe; Frontal lobe
b. Frontal lobe; Occipital lobe
c. Frontal lobe; Parietal lobe
Which of the following functions is/are associated with the thalamus?
a. Control of body temperature
b. Transmission of sensory information
c. Orienting head and eyes to a visual stimulus
, d. Control of respiration - CORRECT ANSWER- ✔✔b. Transmission of sensory information
The Optic nerve (cranial nerve II) is a ____________ nerve.
a. Sensory
b. Motor
c. Both sensory and motor - CORRECT ANSWER- ✔✔a. Sensory
At what point does sensory information carried by the spinothalamic tract cross to the
contralateral side?
a. After synapsing in the thalamus
b. In the spinal cord.
c. In the dorsal column nucleus
d. None of the above â information traveling in the spinothalamic tract does not cross. -
CORRECT ANSWER- ✔✔b. In the spinal cord.
Sensory transduction is the process of converting ___________ .
a. Amplitude of graded potentials into frequency of action potentials
b. Stimulus energy from one modality (such as touch) into another modality (such as pain.)
c. Stimulus energy into receptor potential
d. Frequency of graded potentials into amplitude of action potentials - CORRECT ANSWER-
✔✔c. Stimulus energy into receptor potential
Like the dorsal column system, the anterolateral system ________ .
a. Carries sensory information
b. Crosses in the corpus callosum
c. Synapses in the spinal cord.
d. Carries motor information - CORRECT ANSWER- ✔✔a. Carries sensory information
Increasing intensity of a pressure stimulus (applied to the same spot on your finger) is coded
by ____ . (Assume threshold is met.)
a. Increasing amplitude of receptor potential
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