WorksheetsGCSF 2013 SPECIAL SENSES
Total questions: 24
Worksheet time: 48mins
In order for a molecule to be detected by the olfactory neurons, it must
be present in high concentrations.
be one of the seven primary classes of odors.
be dissolved in fluid covering the olfactory epithelium.
interact with the mechanoreceptors of the olfactory hair membrane.
Which of the following statements is false?
Olfaction influences taste.
Adaptation for taste is rapid.
Sensitivity of taste buds for sweet taste is very high.
Each taste bud is most sensitive to one of the five basic tastes.
Taste buds are not associated with __________ papillae.
foliate
filiform
vallate
fungiform
Arrange the following in correct sequence:
(1) gustatory cell depolarizes
(2) action potential stimulated in gustatory neurons
(3) food substance dissolves in saliva
(4) neurotransmitter released by gustatory cell
(5) food substance enters taste pore and attaches to receptor on gustatory hair
3, 1, 4, 5, 2
3, 5, 1, 4, 2
5, 4, 1, 2, 3
5, 3, 1, 4, 2
You taste a sauce with the tip of your tongue. These taste sensations would be carried via the _____ cranial nerve.
facial (VII)
vagus (X)
trigeminal (V)
glossopharyngeal (IX)
The anterior and posterior chambers of the eye are separated by the __________.
iris
lens
retina
cornea
The __________ separates the posterior chamber from the vitreous chamber.
iris
lens
sclera
choroid
The outermost tunic of the eyeball is the __________.
iris
sclera
retina
choroid
The __________ is part of the vascular tunic.
iris
retina
optic disc
fovea centralis
Rhodopsin is found in the __________.
rods
cones
choroid
pigmented retina
The lens
is biconcave.
focuses light on the retina.
floats in the vitreous humor.
is attached to the retina by suspensory ligaments.
To focus on objects closer than 20 feet,
the lens must become flatter.
the cornea must move inward.
the ciliary muscles must contract.
the suspensory ligaments increase tension on the lens.
The correct pathway for impulses leaving the retina is
photoreceptors, ganglion cells, bipolar cells, and optic nerve.
photoreceptors, bipolar cells, ganglion cells, and optic nerve.
photoreceptors, bipolar cells, optic nerve, and ganglion cells.
photoreceptors, ganglion cells, optic nerve, and bipolar cells.
A person loses all vision in their left eye. One possible cause could be damage to the
optic chiasma.
left optic tract.
optic nerve in the left eye.
right lateral geniculate nucleus.
The external ear terminates at the __________.
pinna
oval window
tympanic membrane
internal auditory meatus
The auditory tube
helps maintain balance.
carries sound to the eardrum.
carries sound to the inner ear.
equalizes air pressure between the middle ear and outside air.
The _________ is/are part of the bony labyrinth.
malleus
vestibule
cochlear duct
tympanic membrane
Arrange the following structures in the order in which they would vibrate as a result of the tympanic membrane vibrating.
(1) oval window
(2) vestibular membrane and endolymph
(3) ossicles
(4) basilar membrane
(5) perilymph
1, 2, 3, 4, 5
1, 2, 5, 3, 4
3, 1, 5, 2, 4
3, 5, 2, 4, 1
Which of the following is true?
The cochlear duct is filled with perilymph.
The bony core of the cochlea is called the modiolus.
The foot plate of the incus fits into the round window.
The vestibule is one of the regions of the organ of corti.
The direction from which a sound is coming can be determined by the
volume of the sound.
frequency of sound waves.
amplitude of the sound waves.
differences in the time that sound waves take to reach each ear.
Cochlear neurons are stimulated by
vibrating the oval window.
vibrations of the tectorial membrane.
movement of the otoliths in the endolymph.
bending microvilli or stereocilia on the hair cells.
Arrange the following structures in the order in which they vibrate when a sound wave enters the ear.
(1) eardrum
(2) endolymph
(3) ossicles
(4) oval window
(5) perilymph
1, 3, 2, 5, 4
1, 3, 4, 5, 2
1, 3, 5, 2, 4
1, 4, 3, 5, 2
Otoliths
amplify hearing.
are part of the ampulla.
are embedded in a gelatinous mass.
are found in the semicircular canals.
Which of the following structures is not important to the maintenance of balance and equilibrium?
Eyes
Cochlea
Vestibular apparatus
Proprioceptors from joints
