Exam 17: A: Sense Organs

The number of pure,or "primary," olfactory scents is about 15.

Mechanoreceptors are activated by stimuli that in some way deform or change the position of the receptor.

The stretch reflex helps maintain posture.

The sense organs responsible for the sense of balance are located in the vestibule and cochlea.

The macula is involved in static equilibrium.

Adaptation by a receptor causes an increase in the rate of impulse but a decrease in its intensity.

Germinative epithelial basal cells constantly replace olfactory receptor neurons.

Because rods only see in "black and white," they are equally responsive to the entire range of visible wavelengths.

Somatic sense receptors are distributed evenly throughout the body.

The function of the lacrimal gland is to secrete tears.

The interpretation of the sensation of being tickled requires a complex interaction of many parts of the brain.

The stapes fits into the round window in the middle ear.

Visual acuity is the clearness or sharpness of visual perception.

Another term for a visceroceptor is an interoceptor.

The external ear ends at the eardrum.

Encapsulated nerve endings are encapsulated by cuboidal epithelial tissue.

Exteroceptors are often called somatic senses.

Spicy is one of the "primary" taste sensations.

The pinna and external acoustic meatus refer to the same structure.

Some ions are linked with a specific taste,such as H⁺ ions being sour and Na⁺ ions being salty.