Chapter 10 - Senses

The sense of hearing can be classified as a:

a.proprioceptor.

b.mechanoreceptor.

c.thermoreceptor.

d.photoreceptor.

mechanoreceptor.

The sense of sight can be classified as a:

a.proprioceptor.

b.chemoreceptor.

c.thermoreceptor.

d.photoreceptor.

photoreceptor.

The Golgi tendon receptors can be classified as:

a.proprioceptors.

b.chemoreceptors.

c.thermoreceptors.

d.photoreceptors.

proprioceptors

The free nerve endings in the skin respond to:

a.high-frequency vibration.

b.low-frequency vibration.

c.pain.

d.touch.

plain

General sense organs can be found in the highest concentration in:

a.muscle tissue.

b.the skin.

c.the tendons and connective tissue.

d.the deep internal organs.

the skin.

The white part of the eye is called the:

a.cornea.

b.choroid.

c.iris.

d.sclera.

sclera

The conjunctiva:

a.is a mucous membrane covering part of the eye.

b.opens and closes to regulate the light entering the eye.

c.is the colored part of the eye.

d.is the clear part of the sclera.

is a mucous membrane covering part of the eye.

The colored part of the eye is called the:

a.conjunctiva.

b.pupil.

c.iris.

d.lacrimal gland.

iris

The cornea:

a.is the colored part of the eye.

b.produces tears.

c.is the mucous covering of the eye.

d.is the clear part of the sclera in the front of the eye.

.is the clear part of the sclera in the front of the eye.

The pupil:

a.is a hole that lets light into the eye.

b.is the colored part of the eye.

c.produces tears.

d.helps focus light on the rear of the eye.

s a hole that lets light into the eye.

The choroid layer:

a.helps focus light on the rear of the eye.

b.produces tears.

c.prevents the scattering of incoming light rays.

d.is the white of the eye.

prevents the scattering of incoming light rays.

The innermost layer of the eye is the:

a.conjunctiva.

b.choroid.

c.sclera.

d.retina.

retina.

The rods in the eye:

a.are part of the choroid layer.

b.respond to the colors red, green, and blue.

c.are used to see in dim light.

d.are part of the sclera layer.

are used to see in dim light.

The cones in the eye:

a.are part of the retinal layer.

b.respond to the colors red, green, and blue.

c.are used to see in dim light.

d.are part of the retinal layer and they respond to the colors red, green, and blue.

are part of the retinal layer and they respond to the colors red, green, and blue

The part of the eye with the highest concentration of cones is the:

a.macula lutea.

b.fovea centralis.

c.optic disc.

d.choroid layer.

fovea centralis.

The "blind spot" of the eye is also called the:

a.macula lutea.

b.fovea centralis.

c.optic disc.

d.choroid layer.

optic disc.

The vitreous humor:

a.

is found in the anterior cavity.

b.

is found in the posterior chamber.

c.

is a watery fluid in front of the lens.

d.

is found around the surface of the eye.

is found in the posterior chamber.

The external ear is called the:

a.

auricle.

b.

tympanic membrane.

c.

pinna.

d.

auricle or pinna.

auricle or pinna.

The eardrum is:

a.

also called the tympanic membrane.

b.

at the end of the auditory tube.

c.

part of the inner ear.

d.

is part of the cochlea.

also called the tympanic membrane.

The sequence of the ossicles from the eardrum to the inner ear is:

a.

malleus, stapes, incus.

b.

stapes, incus, malleus.

c.

malleus, incus, stapes.

d.

stapes, incus, cochlea.

malleus, incus, stapes.

In the middle ear, the:

a.

incus rests against the organ of Corti.

b.

tympanic membrane rests against the stapes.

c.

tympanic membrane rests against the incus.

d.

stapes rests against the oval window.

stapes rests against the oval window.

The structure that separates the middle ear from the inner ear is the:

a.

tympanic membrane.

b.

oval window.

c.

ossicles.

d.

auditory canal.

oval window.

The inner ear consists of three spaces, which are the:

a.

perilymph, vestibule, and the cochlea.

b.

endolymph, vestibule, and the cochlea.

c.

vestibule, semicircular canals, and the cochlea.

d.

vestibule, semicircular canals, and the endolymph.

vestibule, semicircular canals, and the cochlea.

The perilymph is:

a.

inside the semicircular canal.

b.

inside the cochlea.

c.

inside the bony labyrinth.

d.

inside the membranous labyrinth.

inside the bony labyrinth.

Endolymph is:

a.

inside the cochlea.

b.

inside the semicircular canals.

c.

just inside the bony labyrinth.

d.

inside the cochlea and the semicircular canals.

inside the cochlea and the semicircular canals.

The sense of balance:

a.

is classified as a proprioceptor.

b.

occurs in the cochlea.

c.

occurs in the ossicles.

d.

is classified as a mechanoreceptor.

is classified as a mechanoreceptor.

The sense of balance occurs in the:

a.

ossicles.

b.

semicircular canals.

c.

vestibule.

d.

semicircular canals and the vestibule.

semicircular canals and the vestibule.

The specific organ of hearing is called the:

a.

cochlea.

b.

semicircular canal.

c.

organ of Corti.

d.

tympanic membrane.

organ of Corti.

The sense of taste is classified as a:

a.

proprioceptor.

b.

chemoreceptor.

c.

mechanoreceptor.

d.

thermoreceptor.

chemoreceptor.

The cells responsible for the sense of taste are the:

a.

taste buds.

b.

papillae cells.

c.

salivary cells.

d.

gustatory cells.

gustatory cells.

The six primary taste sensations are:

a.

sweet, salty, fruity, metallic, umami, bitter.

b.

sweet, salty, metallic, bitter, sour, umami.

c.

sweet, metallic, sour, umami, fruity, salty.

d.

umami, sweet, fruity, bitter, sour, metallic.

sweet, salty, metallic, bitter, sour, umami.

The sense of smell is classified as:

a.

a proprioceptor.

b.

a chemoreceptor.

c.

a mechanoreceptor.

d.

a thermoreceptor.

a chemoreceptor.

The olfactory receptors:

a.

also assist in the sense of taste.

b.

are able to respond to four primary odors.

c.

are not sensitive because of the location of the receptors.

d.

also assist in the sense of sight.

also assist in the sense of taste.

The sense of smell is:

a.

sensitive.

b.

easily adapted.

c.

can respond to chemicals dissolved in water.

d.

sensitive, easily adapted, and can respond to chemicals dissolved in water.

sensitive, easily adapted, and can respond to chemicals dissolved in water.

The sense of smell is able to stimulate vivid memories because the olfactory tract passes through the:

a.

hypothalamus.

b.

limbic.

c.

cerebellum.

d.

brainstem.

limbic.

Which of the following sensations is generated by a general sense organ?

a.

Touch

b.

Taste

c.

Equilibrium

d.

Both touch and equilibrium

Touch

Which of the following sensations is generated by a special sense?

a.

Touch

b.

Taste

c.

Pressure

d.

Touch, taste, and pressure

Taste

Which of the following is not considered one of the layers of the eye?

a.

Retina

b.

Sclera

c.

Iris

d.

Choroid

Iris

Which of the following is not part of the vascular layer of the eye?

a.

Iris

b.

Cornea

c.

Ciliary muscle

d.

Pupil

Cornea

Which of the following is not true about the senses of taste and smell?

a.

Both are chemoreceptors.

b.

Both contribute to the sense of taste

c.

Chemicals must be dissolved to stimulate the receptor.

d.

Both respond to six primary stimuli.

Both respond to six primary stimuli.

The vestibular nerve contains a nerve from the:

a.

semicircular canals.

b.

vestibule.

c.

cochlea.

d.

semicircular canals and vestibule.

semicircular canals and vestibule.

Which sensation is not sensed by a general sense organ?

a.

Temperature

b.

Equilibrium

c.

Touch

d.

Temperature, equilibrium, and touch

Equilibrium

Which sensation is not sensed by a special sense organ?

a.

Smell

b.

Equilibrium

c.

Taste

d.

Smell, equilibrium, and taste

Smell, equilibrium, and taste

which of the following is not true of a general sense organ?

a.

They are microscopic in size.

b.

They respond to touch and pressure.

c.

They are grouped in a localized area.

d.

They are not evenly distributed over the body surface.

They are grouped in a localized area.

This is a functional characteristic of all sense organs:

a.

must be able to detect a stimulus.

b.

must be able to detect a change in the intensity of the stimulus.

c.

must be able to change the stimulus into a nerve impulse.

d.

must be able to detect a stimulus, detect a change in the intensity of the stimulus, and able to change the stimulus into a nerve impulse.

must be able to detect a stimulus, detect a change in the intensity of the stimulus, and able to change the stimulus into a nerve impulse.

A condition where the lens of the eye becomes milky in appearance and loses its transparency is called:

a.

a cataract.

b.

presbyopia.

c.

otitis media.

d.

glaucoma.

a cataract.

An infection of the middle ear is called:

a.

a cataract.

b.

presbyopia.

c.

otitis media.

d.

glaucoma.

otitis media.

An increase in pressure inside the eye is called:

a.

a cataract.

b.

presbyopia.

c.

otitis media.

d.

glaucoma.

glaucoma.

The "farsightedness" of old age is called:

a.

a cataract.

b.

presbyopia.

c.

otitis media.

d.

glaucoma.

presbyopia.

Which of the following is part of the sensory pathway of all sense organs?

a.

Able to sense or detect a stimulus.

b.

Detection of a stimulus is converted to a nerve impulse.

c.

Signal from nerve impulse is conducted to the brain.

d.

Processing information is the sensation perceived in the brain.

e.

Able to sense or detect a stimulus, convert it to a nerve impulse, conduct nerve impulse to the brain, and the processed information is perceived in the brain.

Able to sense or detect a stimulus, convert it to a nerve impulse, conduct nerve impulse to the brain, and the processed information is perceived in the brain.

Why are the many unique flavors we recognize not just tastes alone but a combination of sensations based on tastes, odors, touch, temperature, and pain?

a.

All incoming signals are integrated with the spinal cord.

b.

All incoming signals are integrated with other sensory signals and even memories to produce our perceptions.

c.

All senses follow the same nerve pathway to the brain.

d.

Taste buds follow the same sensory pathways as other special senses.

All incoming signals are integrated with other sensory signals and even memories to produce our perceptions.

General sense organs are characterized by large complex organs or localized groupings of specialized receptors.

False

One of the main functions of a sense organ is to change a physical stimulus into an electrical signal.

True

General sense organs are found throughout the body but are most concentrated in the internal organs.

False

Specialized receptors found near the point of junction between tendons and muscles are called mechanoreceptors.

False

Muscle spindles can be classified as proprioceptors.

True

Golgi tendon receptors and muscle spindles are both proprioceptors but are able to sense different things.

True

Meissner's corpuscles respond to pain.

False

Ruffini's corpuscles respond to touch and pressure.

True

Pacinian corpuscles respond to deep pressure.

True

The highest concentration of general sense organs is in the epidermis of the skin.

False

You are able to distinguish the difference between lifting a 20-lb weight and a 50-lb weight because of the Golgi tendon receptors.

True

The cornea is considered part of the sclera.

True

The iris is considered part of the sclera.

False

The lacrimal gland produces tears that keep the eyes moist.

True

The pupil is the colored part of the eye.

False

The iris is actually a muscle in the choroid layer.

True

In very dim light, the circular fibers of the iris contract, causing the pupil to dilate.

False

Presbyopia is a term for the nearsightedness of old age.

False

Cataracts may be caused by exposure to the ultraviolet radiation of the sun.

True

A cataract is a condition in which the cornea becomes less transparent and "milky" in appearance.

False

Dim light is able to stimulate the rods in the eye.

True

Colorblindness is a malfunction of the cones of the eye.

True

Cones are used for day vision or vision in bright light.

True

There are three kinds of cones, each sensitive to a different color: red, yellow, or blue.

False

The retina is the innermost layer of the eye.

True

The yellowish area near the center of the retina is called the fovea centralis.

False

The greatest concentration of rods is found in the macula lutea.

False

Looking directly at an object in bright light would give us greater visual acuity because the light would be focused on the fovea centralis.

True

One of the functions of the fluids in the eye is to focus light.

True

Aqueous humor is the watery fluid in the posterior chamber of the eye.

False

Vitreous humor is the thick fluid in the posterior chamber of the eye.

True

The potentially blinding condition called glaucoma can occur if the fluid pressure of the eye drops too low.

False

The optic disc is able to respond only to bright light.

False

The nerve impulse of the eye begins when light enters through the iris of the eye and ends in the occipital lobe of the brain. This is called the visual pathway.

False

The external ear has two parts, the auricle and the pinna.

False

The tympanic membrane is at the end of the auditory canal.

True

The ceruminous glands produce ear wax.

True

The ossicles are in the middle ear.

True

The handle of the incus attaches to the inside of the eardrum.

False

The stapes presses against the oval window.

True

The external auditory canal connects the throat to the middle ear and can allow the spread of infection from the throat to the middle ear.

False

The inner ear is responsible for the sense of hearing and equilibrium.

True

The bony labyrinth is divided into three parts: the cochlea, the vestibule, and the semicircular canals.

True

The membranous labyrinth is filled with endolymph.

True

The crista ampullaris is stimulated when you move your head.

True

The tympanic membrane is considered the organ of hearing.

False

The organ of Corti is considered the organ of hearing.

True

Specialized cells on the tongue called taste buds provide the sense of taste.

False

Papillae are microscopic receptors that can be found on the taste buds.

False