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PNB 2264 Final Cumulative Exam Questions and Answers 100% Solved
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PNB 2264 Final Cumulative Exam Questions and Answers 100% Solved 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. A...

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  • October 22, 2024
  • 32
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • PNB 2264
  • PNB 2264

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©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

PNB 2264 Final Cumulative Exam

Questions and Answers 100% Solved


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 - ✔✔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 - ✔✔c. The central nervous system

,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

A neuron responsible for transmitting pain information to the brain could be

functionally classified as:

a. Efferent

b. Afferent

c. Glial

d. Bipolar - ✔✔b. Afferent

In the nervous system, communication through the synapse is most often:

a. Chemical

b. Electrical

c. Mechanical

d. None of the above - ✔✔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 - ✔✔b. Synapses between unipolar

sensory neurons and interneurons

Which of these occurs when light strikes photoreceptors?

a. The photoreceptor cell membrane become depolarized.

,©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

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. - ✔✔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 - ✔✔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

d. Parietal lobe; Occipital lobe - ✔✔d. Parietal lobe; Occipital lobe

Which of the following functions is/are associated with the thalamus?

a. Control of body temperature

, ©JOSHCLAY 2024/2025. YEAR PUBLISHED 2024.

b. Transmission of sensory information

c. Orienting head and eyes to a visual stimulus

d. Control of respiration - ✔✔b. Transmission of sensory information

The Optic nerve (cranial nerve II) is a ____________ nerve.

a. Sensory

b. Motor

c. Both sensory and motor - ✔✔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. - ✔✔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

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