Q: Which of the following equations best represents the relationship between the number of synaptic changes and memory formation?

$$\text{Long-term memory} \propto \text{Biochemical and anatomical changes at synapses}$$

Q: Which equation best represents the pathway of somatic sensation?

$$\text{Somatic receptor} \rightarrow \text{Brain stem/spinal cord} \rightarrow \text{Thalamus/cerebellum} \rightarrow \text{Primary somatosensory cortex}$$

Question 1

Which of the following best describes the process of sensation in the nervous system?

Accepted Answer

Stimulation of the sensory receptor → transduction of the stimulus → conduction of nerve impulses to CNS → translation by CNS into sensation

Question 2

Which sensory receptor is primarily responsible for discriminative touch?

Accepted Answer

Meissner’s corpuscle

Question 3

A patient presents with loss of proprioceptive sensation. Which brain structure is most likely impaired?

Accepted Answer

Cerebellum

Question 4

Which of the following is NOT a modality of somatic sensation?

Accepted Answer

Photoreceptive sensation

Question 5

Which type of sensory receptor is responsible for detecting pain?

Accepted Answer

Nociceptors

Question 6

During REM sleep, which of the following physiological changes occurs?

Accepted Answer

Increased heart rate, blood pressure, and body temperature; decreased GI motility and skeletal muscle activity

Question 7

Which of the following best describes the somatic sensory pathway?

Accepted Answer

First-order neuron (somatic receptor to brain stem/spinal cord) → second-order neuron (brain stem/spinal cord to thalamus or cerebellum) → third-order neuron (thalamus to primary somatosensory area of cortex)

Question 8

Which sensory receptor is most likely to respond to high-frequency vibration?

Accepted Answer

Pacinian corpuscle

Question 9

Which of the following is a function of the reticular activating system (RAS)?

Accepted Answer

Arousal from sleep

Question 10

Which of the following factors does NOT facilitate the transfer of information from short-term to long-term memory?

Accepted Answer

Lack of rehearsal

Question 11

A patient is unable to elicit a tickle sensation on themselves. Which receptor is responsible for this phenomenon?

Accepted Answer

Free nerve endings

Question 12

Which of the following equations best represents the relationship between the number of synaptic changes and memory formation?

Accepted Answer

$$	ext{Long-term memory} \propto 	ext{Biochemical and anatomical changes at synapses}$$

Question 13

Which of the following is true regarding somatic motor pathways?

Accepted Answer

They start in the cerebral cortex and end in a muscle

Question 14

Which receptor is most likely to be activated when a person feels pressure over a large area of skin?

Accepted Answer

Pacinian corpuscle

Question 15

Which of the following best describes the function of proprioceptors?

Accepted Answer

Monitor the intention and actual movement, compare them, and send corrective signals

Question 16

Which of the following is a correct classification of sensory receptors based on stimulus type?

Accepted Answer

Mechanoreceptors, thermoreceptors, nociceptors, photoreceptors, chemoreceptors, osmoreceptors

Question 17

Which equation best represents the pathway of somatic sensation?

Accepted Answer

$$	ext{Somatic receptor} ightarrow 	ext{Brain stem/spinal cord} ightarrow 	ext{Thalamus/cerebellum} ightarrow 	ext{Primary somatosensory cortex}$$

Question 18

Which of the following is true about the transfer of information into long-term memory?

Accepted Answer

It is influenced by rehearsal, emotional state, association with old data, and automatic memory

Question 19

Which of the following is a correct description of the function of the cerebral cortex in integrative functions?

Accepted Answer

It is involved in wakefulness, sleep, learning, and memory

Neural Integration: Sensory Receptors, Somatic Pathways, and Higher Brain Functions

Study Guide - Practice Questions

Study Guide - Flashcards