Question 1

Describe the conduction of sound energy and its subsequent transduction into neural stimuli.

Accepted Answer

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Question 2

The origin of motor neurons for the somatic nervous system is in the ____________________ horn of the spinal cord.

Accepted Answer

The answer of The origin of motor neurons for the...

Question 3

Match the receptors, labelled a. through d., with their function.
-generates action potentials in afferent neuron by opening messenger-gated channels

Accepted Answer

The specialized receptor ending of an afferent neuron is responsible for generating action potentials in the afferent neuron by opening messenger-gated channels.

Answer: D
 A separate cell serving as a receptor is responsible for generating action potentials by opening messenger-gated channels. This type of receptor is common in sensory systems like vision and hearing.

Question 4

For near vision, the ciliary muscle (contracts or relaxes) so that the suspensory ligaments become (taut or slack).This allows the lens to (flatten or round up), which (increases or decreases) the strength of the lens.

Accepted Answer

The answer of For near vision, the ciliary muscle (contracts...

Question 5

Match the type of nociceptor, labelled a. through c., with the properties associated with each type of nociceptor. (Options may be used more than once or not at all.)
-responds to cutting, crushing, pinching

Accepted Answer

Mechanical nociceptors are specialized to detect mechanical damage such as cutting, crushing, or pinching.

Question 6

Describe the events that occur at a skeletal neuromuscular junction.

Accepted Answer

The answer of Describe the events that occur at a...

Question 7

Match the receptors, labelled a. through d., with their function.
-provides information about changes in the energy form being monitored

Accepted Answer

Phasic receptors are responsible for detecting changes in the energy form being monitored, as they adapt rapidly and are sensitive to changes in stimulus intensity.

Question 8

What are the various roles of secondary messenger systems in sensory pathways

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Question 9

Depolarization of the motor end plate results from more ____________________ ions entering the cell than ____________________ ions leaving the cell.

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Question 10

Compare and contrast the autonomic and somatic nervous systems.

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Question 11

Compare and contrast the various types of autonomic receptors.

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Question 12

When light of suitable wavelength strikes a photoreceptor, the photopigment (absorbs or reflects) the light, causing the photopigment to (dissociate or regenerate).This photopigment transformation acts through a second messenger system to cause Na⁺ channels in the outer segment to (open or close).Subsequently, the photoreceptor (depolarizes or hyperpolarizes), which results in a(n) (increase or decrease) in release of an (inhibitory or excitatory) transmitter from its synaptic terminal.

Accepted Answer

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Question 13

What are the various ways in which toxins can interfere with normal neuron function

Accepted Answer

The answer of What are the various ways in which...

Question 14

Match the receptors, labelled a. through d., with their function.
-provides continuous information about the stimuli being monitored

Accepted Answer

Tonic receptors provide continuous information about the stimuli being monitored.

Answer: B
 Phasic receptors provide information about changes in stimuli rather than continuous information.

Answer: C
 Specialized receptor ending of afferent neuron is a type of receptor found at the end of sensory neurons.

Answer: D
 Separate cell serving as a receptor is not a specific type of receptor, and thus cannot be matched with a function.

Question 15

Compare and contrast the senses of taste and olfaction.

Accepted Answer

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Question 16

Describe the phototransduction process.

Accepted Answer

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Question 17

Match the type of nociceptor, labelled a. through c., with the properties associated with each type of nociceptor. (Options may be used more than once or not at all.)
-responds to irritating chemicals

Accepted Answer

Polymodal nociceptors respond to a variety of stimuli including mechanical, thermal, and chemical irritants. They are considered the most common type of nociceptor, accounting for approximately 70% of nociceptors in the human body.

Question 18

Compare and contrast the divisions of the autonomic nervous system.

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Question 19

Describe how sensory adaptation occurs.

Accepted Answer

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Question 20

Match the receptors, labelled a. through d., with their function.
-generates action potentials in afferent neuron by opening voltage-gated Na⁺ channels

Accepted Answer

The answer of Match the receptors, labelled a. through d.,...

Quiz 4: The Peripheral Nervous System: Sensory, Autonomic, Somatic

Describe the conduction of sound energy and its subsequent transduction into neural stimuli.

The origin of motor neurons for the somatic nervous system is in the ____________________ horn of the spinal cord.

Match the receptors, labelled a. through d., with their function. -generates action potentials in afferent neuron by opening messenger-gated channels

For near vision, the ciliary muscle (contracts or relaxes) so that the suspensory ligaments become (taut or slack).This allows the lens to (flatten or round up), which (increases or decreases) the strength of the lens.

Match the type of nociceptor, labelled a. through c., with the properties associated with each type of nociceptor. (Options may be used more than once or not at all.) -responds to cutting, crushing, pinching

Describe the events that occur at a skeletal neuromuscular junction.

Match the receptors, labelled a. through d., with their function. -provides information about changes in the energy form being monitored

What are the various roles of secondary messenger systems in sensory pathways

Depolarization of the motor end plate results from more ions entering the cell than ions leaving the cell.