Exam 45: Sensory Systems

To test the response of a resident mouse to the introduction of an unfamiliar conspecific to its cage, scientists temporarily block neurons from firing in the vomeronasal organ of the resident mouse.What is the most likely outcome?

A change in the resting membrane potential of a sensory cell in response to a stimulus is called a(n) _______ potential.

Which statement about rhodopsin is false?

Which statement about sensation is false?

All of the following characterize taste buds except

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?

Which statement about muscle spindles is true?

What is the physiological basis for the auditory system's ability to distinguish different sound frequencies?

Refer to the table. In the first column, what is the correct order of the parts of the ear that match the descriptions listed in the second column?

Refer to the figure. The figure shows the molecular events occurring in a rod photoreceptor in the absence of light.Which of the following best describes the "dark current" that is active in these cells?

_______ are rapidly adapting tactile receptors found primarily in non-hairy skin, where they respond to sensitive touch.

Cutting the auditory nerve or damaging the area of the brain where auditory information is processed would cause _______ deafness.

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.

Which taste receptor would be activated by the direct effect of hydrogen ions on sodium channels?

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?

The intensity of a given sensation

Which of the following does not characterize both muscle spindles and Golgi tendon organs?

In a stretch receptor of a crayfish, the rate at which action potentials are fired depends on the magnitude of the _______.

Whereas _______ deafness results from damage to either the tympanic membrane or ossicles, nerve deafness is caused by damage to either the hair cells of the inner ear or the nerves associated with the inner ear.

In casinos, gamblers often roll the dice around in their hands before throwing them.Which type of mechanoreceptor is giving them information about the shape of the dice?