Exam 6: The Peripheral Nervous System - Afferent Division - Special Senses

What is the most common cause of partial hearing loss (neural presbycusis)?

The conversion of stimulus energy into a receptor potential is known as ____________________.

The ____________________ provides information essential for the sense of equilibrium and for coordinating head movements with eye and postural movements.

If the aqueous humor is not drained as rapidly as it forms,pressure builds within the eye and creates a condition called cataracts.

Figure 6-20 Answer the following questions using the accompanying diagram. -Which number in the accompanying figure represents a rod?

What colors do cones sense?

The normally transparent elastic fibers in the lens may become opaque so that light cannot pass through,a condition known as a(n)____________________.

Umami taste is an acidic taste that was first identified and named by a Japanese researcher and triggered by amino acids,especially lysine.

The receptor hair cells of each semicircular canal are situated on top of a saddle-shaped ridge located in the ampulla,a swelling at the base of the canal.

Each taste bud has a small opening,the ____________________,through which fluids in the mouth come into contact with the surface of its receptor cells.

What condition occurs when the lens of the eye loses elasticity and can no longer assume the spherical shape required to accommodate for near vision?

Pressure waves of frequencies associated with sound reception are transferred from the upper compartment through the thin vestibular membrane into the cochlear duct and then through the basilar membrane into the lower compartment.

What are the actin-stiffened microvilli in the organ of Corti?

What gland produces tears?

The amount of light entering the eye is controlled by the iris.

____________________ corpuscles are rapidly adapting and sensitive to light,fluttering touch,such as tickling with a feather.

Sensorineural deafness occurs when sound waves are not adequately conducted through the external and middle portions of the ear to set the fluids in the inner ear in motion.

The overlapping area seen by both eyes at the same time is known as the ____________________ field of vision.

What photosensitive cells within the retina perceive colors?​

Stimulation of a receptor alters its membrane permeability,usually by opening channels that permit an influx of what ions?