Human Physiology Lab 08 To 11 Review Question Preview (ID: 36638)


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the ________ organs, utricle and saccule are used to detect
a) otolith, acceleration
b) vessicular, rotation
c) tripanar, vibration
d) umbricle, deviation from a setpoint

of the semicircular canals, the lateral canals are used to detect rotation...
a) side to side around the axis (yaw), as in shaking the head 'no'
b) forward and backward (pitch), as in nodding the head 'yes'
c) tilting to the left or right (roll), as in looking quizzical
d) forward and back (protraction/ retraction), uh, like 'sand dance'. ? meh perpendicular to head slide...

Rinne's and Weber's tests are used as part of a process to distinguish between
a) conduction deafness vs. sensory deafness
b) unilateral vs. bilateral deafness
c) intrinsic vs. extrinsic deafness
d) auditory hallucinations vs. neural hallucinations

Rinne's test compares
a) bone conduction with air conduction
b) bone conduction with nerve conduction
c) auditory signals with visual signals
d) endolymph motion with perilymph motion

sound waves are transduced to nerve impulses in
a) the organ of corti
b) the saccule
c) the semicircular canal
d) the ampula

the middle ear contains the
a) ossicles
b) acoustic meatus
c) tympanic membrane
d) cochlea and vestibular apparatus

in the retina, cells referred to as ________ are less sensitive to light, but detect color
a) cones
b) rods
c) photorhodopsin
d) bipolar cells

why is red/ green color blindness far more common in males?
a) the genes for M and L cones are located on the X chromosome
b) the gene for the S cones is located on autosomal chromosomes
c) the gene for M cones is located on the Y chromosome
d) they are aesthetically challenged

the structure which divides the middle ear from the outer ear is the
a) tympanic membrane
b) auditory canal/ tube
c) internal acoustic meatus
d) oval window

if the focal point is in front of the retina, the condition is called ___________; to correct this by lengthening the focal distance, use a ________
a) myopia, concave lens
b) hyperopia, convex lens
c) Presbyopia, confocal lens
d) emmetropia, scalpel or laser

in Presbyopia, the eye loses its ability to __________, or adjust focus for near objects
a) accomodate
b) fluctuate
c) adapt
d) compensate

the 'strength' of a lens with a focal distance of 25 cm would be
a) 4 diopters
b) 15/20
c) -4 diopters
d) 2.5 triopters

in the retina, photoreceptors are densest at the _____, and absent from the _______
a) fovea centralis, optic disc
b) optic disc, fovea centralis
c) optic apex, cillary body
d) choroid, lucidum

visual acuity is defined as
a) the ability to distinguish two distinct points
b) the ability to read letters from a chart
c) the lack of cylindrical aberration in the lens of the eye
d) the minimum distance between two points

if you were able to taste each of the 5 samples on all upper surfaces of the tongue, this would ___________ the hypothesis that taste receptors are localized
a) disprove
b) support
c) prove
d) have no effect on

in the eye, light is refracted to form an inverted image on the retina by the______
a) all of them
b) cornea
c) lens
d) vitreous humor

each 'taste cell' detects _______ type of 'taste'; within an individual taste bud
a) just one; there can be different types of taste cells
b) just one; there is only one type of taste cell
c) either of its cognate pair (salty/sour, sweet/umami, bitter); there are paired taste cells
d) all five; there are membranes allowing the passage of only certain taste molecules

cells that sense ___________ and ___________ use a G protein second messenger to close Potassium channels, triggering depolarization
a) sweet and umami
b) salty and sour
c) sweet and sour
d) bitter and umami

the highest concentration of taste buds is found in the ___________, while the _______ lack taste buds
a) vallate papillae, filiform papillae
b) filiform papillae, vallate papillae
c) fungiform papillae, vallate papillae
d) filiform papillae, fungiform papillae

the taste cells for the sensations of salty and sour differ from the others in that
a) they lack receptors- the ions lead directly to depolarization
b) they use G-protein signaling systems
c) they have internal rather than cell surface receptors
d) there are about 10 times as many receptors for them

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