Chapter 8: Special Senses Multiple Choice Revision

1. Lacrimal glands are located on which surface of the eye:

A) deep.

B) Lateral

C) medial.

D) inferior.

E) superior.

B) Lateral (above the lateral suface)

Which of the external eye muscles is controlled by cranial nerve VI (abducens):

A) lateral rectus.

B) medial rectus.

C) inferior rectus.

D) inferior oblique.

E) superior rectus.

A) lateral rectus.

Tough, white connective tissue forms this portion of the fibrous layer of the eye:

A) sclera.

B) retina.

C) cornea.

D) choroid.

E) conjunctiva.

A) sclera.

The gland that produces tears in the eye is called the:

A) tarsal gland.

B) ciliary gland.

C) lacrimal gland.

D) sebaceous gland.

E) ceruminous gland.

C) lacrimal gland.

The pupil is an opening within the:

A) iris.

B) lens.

C) retina.

D) sclera.

E) choroid.

A) iris.

Inflammation of the conjunctiva involves which of the following:

A) extrinsic eye muscles.

B) glands that produce tears.

C) circular band surrounding the pupil.

D) portion of the eye that contains the optic nerve.

E) delicate membrane lining the eye lids and covering the front of the eyeball.

E) delicate membrane lining the eye lids and covering the front of the eyeball.

Which region of the retina contains only cones and is the sharpest area of visual acuity:

A) retina.

B) sclera.

C) cornea.

D) choroid.

E) fovea centralis.

E) fovea centralis.

The transparent central anterior portion of the sclera through which light enters the eye is called the:

A) iris.

B) pupil.

C) retina.

D) cornea.

E) choroid.

D) cornea.

The middle coat of the eyeball that contains pigment which prevents light from scattering in the eyeball is the:

A) pupil.

B) retina.

C) sclera.

D) cornea.

E) choroid.

E) choroid.

Which layer of the eye contains rods and cones:

A) iris.

B) retina.

C) sclera.

D) choroid.

E) optic nerve.

B) retina.

The pigmented portion of the eye that has a rounded opening through which light passes is the:

A) iris.

B) lens.

C) retina.

D) sclera.

E) cornea.

A) iris.

The three sets of colour receptors within the retina are sensitive to wavelengths of visible light that are:

A) blue, green, and red.

B) red, blue, and yellow.

C) red, green, and yellow.

D) green, yellow, and purple.

E) orange, green and purple.

A) blue, green, and red.

Which area of the retina lacks rods and cones and therefore does not detect images:

A) choroid.

B) optic disc

C) optic nerve.

D) ciliary body.

E) fovea centralis.

B) optic disc (Blind Spot).

The aqueous humor of the eye is reabsorbed into venous blood through the:

A) pupil.

B) ciliary body.

C) nasolacrimal duct.

D) inferior lacrimal canal.

E) scleral venous sinus (canal of Schlemm).

E) scleral venous sinus (canal of Schlemm).

Which one of the following is NOT true of color blindness:

A) it results in lack of cones.

B) it occurs most often in women.

C) it is sex-linked, inherited homeostatic imbalance.

D) lack of red or green receptors is the most common type.

E) it is caused by a defect in genes on the X (female) sex chromosome.

B) it occurs most often in women.

The gel-like substance that reinforces the eyeball and prevents it from collapsing inward is the:

A) ciliary body.

D) choroid coat.

C) vitreous humor.

D) aqueous humor.

E) canal of Schlemm.

C) vitreous humor.

What structure of the eye focuses light on the retina:

A) iris.

B) lens.

C) sclera.

D) choroid.

E) optic chiasma.

B) lens.

18. The inability to see distant objects is termed "nearsighted" or:

A) myopia.

B) hyperopia.

C) presbyopia.

D) astigmatism.

E) emmetropia.

A) myopia.

Eyes suddenly exposed to bright light experience:

A) eye strain.

B) hemianopia.

C) convergence.

D) photopupillary reflex.

E) accommodation pupillary reflex.

D) photopupillary reflex.

Which one of the following correctly lists the order of the parts through which light passes as it enters the eye:

A) cornea, aqueous humor, lens, vitreous humor.

B) aqueous humor, cornea, lens, vitreous humor.

C) vitreous humor, lens, aqueous humor, cornea.

D) cornea, lens, aqueous humor, vitreous humor.

E) lens, aqueous humor, cornea, vitreous humor.

A) cornea, aqueous humor, lens, vitreous humor.

Which of the following is NOT associated with the middle ear:

A) auricle.

B) ossicle.

C) oval window.

D) round window.

E) pharyngotympanic tube.

A) auricle.

Sound waves entering the external auditory canal hit the eardrum, also known as the:

A) pinna.

B) auricle.

C) ossicle.

D) oval window.

E) tympanic membrane.

E) tympanic membrane.

Hair cells that function as hearing receptors are located within the:

A) auricle.

B) ossicles.

C) oval window.

D) auditory tube.

E) spiral organ of Corti.

E) spiral organ of Corti.

The pathway of vibrations through the ossicles from the tympanic membrane, or eardrum, to the oval window is:

A) malleus, incus, stapes.

B) incus, malleus, stapes.

C) stapes, incus, malleus.

D) malleus, stapes, incus.

E) stapes, malleus, incus.

A) malleus, incus, stapes.

Equilibrium receptors are located in the:

A) ossicles

B) inner ear.

C) middle ear.

D) external ear.

E) tympanic membrane.

B) inner ear.

An ear infection following an illness such as a cold can pass from the throat through the auditory tube to the:

A) eardrum.

B) inner ear.

C) outer ear.

D) middle ear.

E) semicircular canals.

D) middle ear.

The auditory ossicle called the "anvil" is also called the:

A) incus.

B) stapes.

C) malleus.

D) cochlea.

E) bony labyrinth.

A) incus.

Our sense of static equilibrium is created by the:

A) vibration of the tympanic membrane.

B) movement of otoliths along hair cells.

C) transmission of light through the lens.

D) sound waves traveling through the cochlea.

E) stimulation of hair cells in the spiral organ of Corti.

B) movement of otoliths along hair cells.

Dynamic equilibrium receptors are found in the:

A) malleus.

B) cochlea.

C) vestibule.

D) oval window.

E) semicircular canals

E) semicircular canals

Hearing receptors within the spiral organ of Corti are called:

A) rod cells.

B) hair cells.

C) cone cells.

D) Corti cells.

E) ceruminous cells.

B) hair cells.

Which cranial nerve transmits hearing and equilibrium information to the brain:

A) trochlear (IV).

B) trigeminal (V).

C) abducens (VI).

D) Oculomotor (III).

E) vestibulocochlear (VIII).

E) vestibulocochlear (VIII).

Sensorineural deafness occurs when there is damage or degeneration of receptor cells of the:

A) ossicles.

B) round window.

C) semicircular canals.

D) spiral organ of Corti.

E) spiral organ of Corti or cochlear nerve.

E) spiral organ of Corti or cochlear nerve

Gustatory hairs are to taste as olfactory hairs are to:

A) sight.

B) smell.

C) hearing.

D) dynamic equilibrium.

E) both hearing and dynamic equilibrium.

B) smell.

Which one of the following is NOT a primary taste sensation:

A) sour.

B) salty

C) bitter.

D) sweet.

E) pungent.

E) pungent.

Which one of the following nerves serves the anterior tongue:

A) facial.

B) vagus.

C) cochlear.

D) vestibular.

E) glossopharyngeal.

A) facial.

Which one of the following cranial nerves is NOT involved in either taste or smell:

A) vagus (X).

B) vestibular (VIII).

C) facial nerve (VII).

D) olfactory nerve (I).

E) glossopharyngeal (IX).

B) vestibular (VIII).

Stimulation of sour receptors occurs in response to:

A) salt.

B) sugar.

C) lemons.

D) beef steak.

E) saccharine.

C) lemons.

The congenital condition of "crossed eyes" is also known as:

A) myopia.

B) hyperopia

C) presbyopia.

D) strabismus.

E) hemianopia.

D) strabismus.

The fusion of ear bones (ossicles) is known as:

A)otitis.

B) strabismus.

C) otosclerosis.

D) presbycusis.

E) hemianopia.

C) otosclerosis.

The only special sense that is NOT fully functional at birth is:

A) taste.

B) smell.

C) touch.

D) vision.

E) hearing.

D) vision.