What must a sensory receptor be able to do in response to a stimulus?

Trigger a nerve impulse that propagates to the CNS

Inhibit synaptic transmission in the CNS

Release hormones into the bloodstream

Convert an impulse into a motor response without CNS involvement

According to the stated criteria, which set correctly lists how sensory receptors are classified?

Receptor structure, location and origin, type of stimulus detected

Membrane potential, refractory period, synaptic delay

Axon diameter, myelination, neurotransmitter type

Gene expression profile, metabolic rate, regeneration capacity

In the diagram of a Pacinian corpuscle, which sequence correctly describes the flow of information leading to an action potential?

Pressure stimulus deforms corpuscle → dendrite is stimulated → action potential travels along the same sensory neuron

Chemical stimulus activates receptor → neurotransmitter release → action potential in sensory neuron

Light stimulus excites photoreceptor → graded potential in bipolar cell → action potential in ganglion cell

Thermal stimulus opens TRP channels in epithelial cell → neurotransmitter release → action potential in interneuron

According to the taste cell diagram, what is the immediate event that triggers an action potential in the postsynaptic sensory neuron?

Release of neurotransmitter from the taste cell

Opening of stretch-gated channels in the sensory neuron's dendrite

Deformation of a lamellar capsule around the dendrite

Direct electrical coupling through gap junctions

Which pairing correctly matches a proprioceptive structure with its category?

Golgi tendon organ — proprioceptor

Muscle spindle — cutaneous receptor

Meissner corpuscle — visceroreceptor

According to the diagram, Meissner corpuscles are involved in which tactile function?

Continuous pressure or skin stretch

Painful stimuli and temperature

The hair follicle receptor primarily detects which stimulus?

Slight bending of the hair associated with light touch

Continuous pressure from skin stretch

Two-point discrimination on glabrous skin

Superficial pressure without hair movement

Free nerve endings in the skin respond to which combination of stimuli as shown?

Painful stimuli, temperature, itch, joint movement, and proprioception

Light touch and superficial pressure only

Continuous pressure and stretch

Two-point discrimination exclusively

Deep cutaneous pressure and vibration only

Which statement best characterizes general senses according to the material?

They are distributed over a large part of the body and involve a generator potential that travels to the brain.

They are confined to specific organs like the eye and ear.

They only detect smell, taste, and balance.

They require motor neurons to initiate an action potential in receptors.

Somatic senses provide information primarily about which of the following?

Body and environment, including touch, pressure, temperature, proprioception, and pain

Internal organ status such as pressure in the stomach

Olfactory and gustatory stimuli

Only body position and movement

What is proprioception?

The sense of body position and movement

The sense of internal organ pain

The sense of external temperature only

Visceral senses are best described as providing information about which of the following?

Internal organs, including pain and pressure

Body movement relative to gravity

Which list contains only special senses as described in the material?

Smell, taste, sight, hearing, balance

Pressure, proprioception, touch

In special senses, what is the sequence leading to information reaching the brain?

Receptor produces a receptor potential, releases a neurotransmitter, which binds to receptors on a neuron's membrane, and the signal travels to the brain

Neuron fires an action potential directly in the receptor, which then closes synapses in the spinal cord

Neurotransmitter is released by a neuron, which then creates a receptor potential in an organ that moves muscles

Receptors in organs generate motor potentials that travel to muscles and then to the brain

Which statement accurately contrasts general and special senses based on the material?

General senses are widely distributed and involve a generator potential leading to the brain, whereas special senses occur in special sense organs and use receptor potentials that trigger neurotransmitter release to activate neurons.

General senses occur only in specialized organs, whereas special senses are distributed widely across the body.

General senses include smell and taste, whereas special senses include touch and pressure.

Both general and special senses rely exclusively on proprioception.

Within general senses, which pairing correctly matches the subdivision with its typical location?

Somatic—located in skin, muscles, joints; Visceral—located in internal organs

Somatic—located in internal organs; Visceral—located in skin, muscles, joints

Somatic—receptors localized within specific organs; Visceral—receptors distributed over the body

Somatic—found only in joints; Visceral—found only in muscles

Which statement best characterizes free nerve endings?

They are the simplest and most common sensory receptors.

They are encapsulated receptors specialized for deep pressure.

They are confined to muscles and tendons only.

They detect only pain and not temperature.

Merkel disks are located in which region and are associated with which type of touch?

Just below the epidermis; light touch and superficial pressure

Within skeletal muscle; proprioception

Around hair follicles; vibration

Ruffini end organs are found primarily in which anatomical region and are specialized to respond to what stimulus?

Dermis of fingers; continuous touch or pressure

Epidermis of the palm; cold temperature

Subcutaneous tissue of the forearm; sharp pain

Which statement best describes the primary function of muscle spindles?

Provide information about the length of muscles

Detect changes in tendon tension

Generate force during muscle contraction

Transmit pain from damaged fibers

Golgi tendon organs primarily respond to which stimulus?

Increased tension on the tendon

Which statement best defines referred pain?

Sensation in one region of the body that is not the source of the stimulus

Pain perceived at the site of tissue damage only

Pain that occurs only after injury has healed

Pain that is ignored by the nervous system

Referred pain most directly results from which neural feature?

Different areas of the body sharing common nerve pathways

Exclusive nerve pathways for each organ

A single receptor type for all sensations

Complete isolation of somatic and visceral nerves

A patient experiences left arm discomfort during a myocardial infarction. This is best explained by which concept?

Referred pain due to shared nerve pathways

Gate control suppressing nociception

Which scenario most likely represents referred pain rather than local pain?

Gallbladder irritation producing right shoulder pain

Cut finger that hurts at the cut site

Ankle sprain with ankle tenderness

Bruised thigh aching at the bruise

Chapter 14- Integration of NS

Quiz

•

Science

•

University

•

Practice Problem

•

Hard

•

NGSS

MS-LS1-8

Standards-aligned

Theresa Repole

FREE Resource

46 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which statement best defines sensation?

Conscious awareness of stimuli processed by the cortex

A process initiated by stimuli that activates a sensory receptor

Integration of sensory input with memory to form meaning

The brain’s interpretation of environmental context

Perception is described as which of the following?

Activation of a sensory receptor by a stimulus

Transmission of impulses along a sensory nerve

Conscious awareness of sensations

Reflexive response to environmental change

What are the two broad categories of senses?

Somatic and Visceral senses

General senses and Special senses

External and Internal senses

Peripheral and Central senses

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Within the general senses category, somatic senses include which combination?

Smell, taste, and vision

Pain and pressure only

Touch, pressure, proprioception, temperature, and pain

Hearing and balance

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which option correctly classifies visceral senses as shown in the diagram?

Smell and taste

Hearing and balance

Pain and pressure

Touch and proprioception

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following are special senses?

Touch, pressure, temperature, pain

Smell, taste, vision, hearing, balance

Pain and pressure

Proprioception and balance only

Which statement best defines sensory receptors?

They are motor end plates that cause muscle contraction

They are specialized cells or dendrites of a sensory neuron

They are supportive glial cells within the CNS

They are chemical messengers released by endocrine glands

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Chapter 14- Integration of NS

46 questions

Which statement best defines sensation?

Perception is described as which of the following?

What are the two broad categories of senses?

Within the general senses category, somatic senses include which combination?

Which option correctly classifies visceral senses as shown in the diagram?

Which of the following are special senses?

Which statement best defines sensory receptors?

What must a sensory receptor be able to do in response to a stimulus?

In the pathway of sensory signaling, which neuron conducts the nerve impulse from the peripheral nervous system (PNS) to the central nervous system (CNS)?

According to the stated criteria, which set correctly lists how sensory receptors are classified?

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