Question 1

Refer to the figure, which shows receptors in human skin.  If the tactile receptor labeled C were nonfunctional, what would happen to a person's ability to detect either touch or pressure?

Accepted Answer

The answer of Refer to the figure, which shows receptors...

Question 2

Refer to the figure, which shows receptors in human skin.  If the tactile receptor labeled D were nonfunctional, how would this affect a person's ability to detect either touch or pressure?

Accepted Answer

The answer of Refer to the figure, which shows receptors...

Question 3

In a sensory receptor cell that does not fire action potentials, the intensity of the stimulus influences

Accepted Answer

In a sensory receptor cell that does not fire action potentials, the intensity of the stimulus influences how much neurotransmitter is released. As the stimulus intensity increases, more and more neurotransmitter is released onto the postsynaptic target cell.

Question 4

Which statement about receptor potentials is false?

Accepted Answer

Receptor potentials are localized changes in membrane potential of sensory receptor cells in response to stimuli. They do not spread over long distances like action potentials do.

Question 5

Refer to the graph.  The graph shows the response of rod cells to flashes of light as individual traces.Evaluate the following statement with respect to accuracy: The membrane potential depicted in trace 3 shows the response of rod cells to dim light.

Accepted Answer

The answer of Refer to the graph.  The graph...

Question 6

The magnitude of a receptor potential

Accepted Answer

The magnitude of a receptor potential affects the rate at which resulting action potentials are fired, meaning the stronger the receptor potential, the more action potentials will be produced.

Question 7

In an experiment, you set up a crayfish muscle that has an attached stretch receptor.If you gradually increase the amount of stretch you apply to the muscle, you will

Accepted Answer

When a muscle is stretched, the stretch receptor in the muscle spindle is also stretched, causing ion channels to open and generating a receptor potential. This receptor potential can lead to the generation of action potentials in sensory neurons, which transmit the information about the stretch to the nervous system. Increasing the amount of stretch applied to the muscle will increase the magnitude of the receptor potential in the stretch receptor.

Question 8

Receptor potentials produce action potentials in two ways: by generating action potentials within the sensory receptor cells and by causing the release of _______, which induces an associated neuron to generate action potentials.

Accepted Answer

Receptor potentials can cause the release of neurotransmitters, which can lead to the generation of action potentials in associated neurons. Choice A (a hormone) and C (a G protein) are not typically involved in this process, while B (mechanical pressure) and E (ions) can directly generate receptor potentials but do not necessarily lead to the generation of action potentials in associated neurons.

Question 9

Refer to the figure, which shows the organ of Corti in the human inner ear.  The figure shows the organ of Corti in the human inner ear.Your roommate listens to very loud music wearing headphones.What type of deafness can result, and which of the labeled structures would be affected? Provide the letter and the correct name of the structure.

Accepted Answer

The answer of Refer to the figure, which shows the...

Question 10

Evaluate the following statement with respect to accuracy: Although the receptors of taste buds vary in the mechanism of taste transduction, they all release neurotransmitter onto sensory neurons, which carry the information to the central nervous system.

Accepted Answer

The answer of Evaluate the following statement with respect to...

Question 11

What would be the result of damage to the iridescent layer behind the retina in the eyes of a Virginia opossum, a nocturnal mammal?

Accepted Answer

The answer of What would be the result of damage...

Question 12

Cells of the nervous system that transduce physical or chemical stimuli into signals that are transmitted to other parts of the nervous system are _______ cells.

Accepted Answer

Sensory receptor cells are specialized cells that are capable of detecting external stimuli, such as light, sound, temperature, or chemicals, and converting them into electrical signals that can be transmitted to other parts of the nervous system for further processing and interpretation. Glial cells are support cells that provide structural, metabolic, and functional support to neurons, while axonal, messenger, and motor cells are not specific types of cells found in the nervous system.

Question 13

What is the correct order of events associated with sensory transduction by sensory receptor cells?

Accepted Answer

The correct order of events associated with sensory transduction by sensory receptor cells is stimulus arrival, change in membrane permeability to ions, production of a receptor potential, and generation of action potentials. Option B is the only choice that has this order.

Question 14

Increased pressure within the eye can cause glaucoma.Loss of vision results because the increased pressure damages the optic nerve.Which cells of the retina are damaged by glaucoma.On what did you base your answer?

Accepted Answer

The answer of Increased pressure within the eye can cause...

Question 15

Sensory receptor cells transduce physical or chemical stimuli

Accepted Answer

Sensory receptor cells change the membrane potential in response to stimuli, which then triggers the release of neurotransmitters to initiate an action potential in the connected sensory neuron. This is known as sensory transduction.

Question 16

Evaluate the following statement with respect to accuracy: A ganglion cell in the fovea receives input from many more photoreceptors than does a ganglion cell in the periphery of the retina.

Accepted Answer

The answer of Evaluate the following statement with respect to...

Question 17

The process by which different types of stimuli are converted into neural signals is called sensory

Accepted Answer

Sensory transduction is the process in which physical or chemical stimulus is converted into a neural impulse. This process is important because our nervous system only understands electrical impulses in order to interpret information. Therefore, sensory transduction plays a crucial role in allowing us to perceive and respond to different types of sensory input.

Question 18

Refer to the figure, which shows the organ of Corti in the human inner ear.  Damage to which of the labeled structures would most directly interfere with the ability of the inner ear to determine the pitch of a sound? Provide the letter and the correct name of the structure.

Accepted Answer

The answer of Refer to the figure, which shows the...

Question 19

In a crayfish, the receptor potential of a stretch receptor's cell body

Accepted Answer

The receptor potential of a stretch receptor's cell body increases when the muscle is stretched.

Question 20

Female silkworm moths release the pheromone bombykol to attract males.When measuring the rate of firing in the sensory nerves of a male silkworm moth, you discover that the rate is very high.What does this high firing rate tell you about the concentration of bombykol in the air and distance to the female moth?

Accepted Answer

The answer of Female silkworm moths release the pheromone bombykol...

Quiz 45: Sensory Systems

Refer to the figure, which shows receptors in human skin. If the tactile receptor labeled C were nonfunctional, what would happen to a person's ability to detect either touch or pressure?

Refer to the figure, which shows receptors in human skin. If the tactile receptor labeled D were nonfunctional, how would this affect a person's ability to detect either touch or pressure?