Exam 12: Sensory Mechanisms

This phenomenon, which is a medical emergency, involves the peeling of the retina away from the choroid.

Match the following. Answers may be used more than once. -site of the vestibular canal and tympanic canal

An individual never developed otoliths in the inner ear due to a genetic defect. Which one of the following will be impaired as a result?

Convex lenses can correct ________, also called farsightedness.

When a sound wave first arrives at the ear, the wave is directed toward the auditory canal by

Match each of the following disorders associated with sensory mechanisms with its description. -chronic disorder of the inner ear; symptoms include nausea, dizziness, and loss of hearing

Pain receptors and receptors that monitor and maintain homeostasis typically do not adapt.

The loudness (intensity) of a sound is specifically associated with the

The retina is composed of four layers of cells, which are the pigmented cells, photoreceptor cells, bipolar cells, and the ganglion cells. Axons of the ganglion cells become the optic nerve.

The two structures of the eye that focus light are the ________ and ________.

The passageway that extends from the middle ear to the throat is the ________; this structure equalizes air pressure in the middle ear with atmospheric pressure.

Taste hairs contain chemoreceptors that are specific for specific chemicals or tastants.

The figure above is a diagram of an eye with an abnormality that would result in vision problems. A person with this condition would be considered farsighted and would require convex lenses in order to see objects in the distance.

Color blindness usually results from a decrease in the number of

The malleus and incus function to

Which of the following receptors are MOST likely to demonstrate receptor adaptation?

Receptor adaptation occurs when a sensory neuron stops sending impulses even though the original stimulus is still present. Provide several examples of receptors that adapt readily and others that adapt very slowly, if at all. Explain the survival advantage in each of these situations.

A student is staring directly at a bird outside the classroom window. The image of the bird is focused at the very center of the macula, a small pit called the ________, which is lined with highly packed photoreceptors.

A fifth primary taste quality called ________ allows people to taste foods like parmesan cheese, mushrooms, and soy sauce.

Within the cochlea, higher-frequency sounds are converted to electrical impulses near the