Chapter 15 Senses

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Which of the following types of neurons are replaced throughout adult life?

olfactory receptor cells

The oil component found in tear is produced by the ______.

tarsal glands

The receptor for static equilibrium is the ______.

macula

Farsightedness is more properly called______.

hyperopia

Seventy percent of all sensory receptors are located in the ______.

pharyngotympanic tube

Nerve fibers from the medial aspect of each eye________.

cross over to the opposite side at the chiasma

Ordinarily, it is not possible to transplant tissues from one person to another, yet corneas can be transplanted without tissue rejection. This is because the cornea _____.

has no blood supply

The oval window is connected directly to which passageway?

scala vesitbuli

There are three layers of neurons in the retina. The axons of which of these neurons layers form the optic nerves?

ganglion cells

The "first way" station in the visual pathway from the eye, after there has been partial crossover of the fibers in the optic chiasma, is the _______.

lateral geniculate body of the thalamus

As sound levels increase in the spiral organ (of Corti), ___________.

outer hair cells stiffen the basilialr membrane

Which of the following is true about gustatory receptor.?

Complete adaptation occurs in about on to five minutes.

Taste buds are not found ______.

in filiform papillae

Select the correct statement about olfaction.

Some of the sensation of olfaction is actually one of pain

What prevents the eyelids from sticking together when the eyes close?

tarsal gland secretions

Which of the following taste sensations is incorrectly matched to the chemicals that produce it?

umami amino acids glutamate and lysine

U.S.employees must wear hearing protection at _____ dB or above.

90

What is a modiolus?

a bone pillar in the center of the cochlea

Which statement about malnutrition- induced night blindness is most accurate.

Vitami supplements can reverse degenerative changes.

Dark adaptation ________.

involves accumulatin of rhodopsin

Conscious perception of vision probably reflects activity in the ______.

occipital lobe of the cortex

Visual inputs to the ______ serve to synchronize biorhythms with natural light and dark.

suprachiasmatic nucleus

Information from balance receptors goes directly to the ______.

brain stem reflex center

motion sickness seems to ______.

result from mismatch between visual and vestibular inputs

In the uterus _______.

despinte the fact that the fetus cannot se, functional visual cortical connections are established.

Most newborns_______.

often use only one eye at a time.

The blind spot of the eye is where _______.

the optic nerve leaves the eye

The first vestigs of eyes in the embryo are called ______.

optic vessels

Whch pairing of terms is incorrectly related?

frequency : loudness

Olfactory cells and taste buds are normally stimulated by ______.

substances in solution

Which of the following could not be seen as one looks into the eye with an ophthalmascope?

optic chiasma

The cells of the retina in which action potenentials are generated are the_______.

ganglion cells

During dark adaption_______.

rhodopsin accumulates in the rods

Tinnitis, vertigo and gradual hearing loss typify the disorder called ______.

Me'nie're's syndrome

Which of the following is not a characteristic of olfactory receptor cells?

They are unipolar neurons

An essential part of the maculae involved in static equilibious are the.

otoliths

Which of the following is true about light and vision?

When we see the color of an object, all light is being absorbed by that object excpet for the color being experienced

The tarsal plate of the eyelid.

is connected to the levator palpebrae

Whch of the following is true about photoreceptors?

Rods absorb light throughout the visual spectrum but confer only gray tone vision.

Select the correct statement about equilibrium.

Cristae respond to angular addeleration and deceleration

The eye muscles that elevates and turns the eye lateralrlly is the ______?

inferior oblique

The receptor membranes of gustatory cells are ________.

Gustatory hairs

Light passes through the following structures in what order?

conrea, aqueus humor, lens viruous humor (CALV)

Damage to the medial recti muscles would affect _______.

convergance

Whch statement about sound localization is not true:

it requires processing a the cortical level

Whcih of the following is not a possible cause of conductions deafness?

cochlear nerve degeneration

Visual processing in the thalamus does not contribute significantly to _____.

night vision

Visible light fits between ______..

UV and infared

Ceruminous glands are _______.

modified apocrine sweat glands

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