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Human Physiology Lab 08 To 11 Review
Test Description: To practice for lab quiz
Instructions: Answer all questions to get your test result.
1) the highest concentration of taste buds is found in the ___________, while the _______ lack taste buds
A
filiform papillae, fungiform papillae
B
fungiform papillae, vallate papillae
C
filiform papillae, vallate papillae
D
vallate papillae, filiform papillae
2) the taste cells for the sensations of salty and sour differ from the others in that
A
they have internal rather than cell surface receptors
B
they use G-protein signaling systems
C
they lack receptors- the ions lead directly to depolarization
D
there are about 10 times as many receptors for them
3) cells that sense ___________ and ___________ use a G protein second messenger to close Potassium channels, triggering depolarization
A
sweet and umami
B
sweet and sour
C
salty and sour
D
bitter and umami
4) each 'taste cell' detects _______ type of 'taste'; within an individual taste bud
A
just one; there can be different types of taste cells
B
either of its cognate pair (salty/sour, sweet/umami, bitter); there are paired taste cells
C
all five; there are membranes allowing the passage of only certain taste molecules
D
just one; there is only one type of taste cell
5) 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
prove
B
have no effect on
C
disprove
D
support
6) in the eye, light is refracted to form an inverted image on the retina by the______
A
lens
B
all of them
C
cornea
D
vitreous humor
7) in the retina, photoreceptors are densest at the _____, and absent from the _______
A
optic disc, fovea centralis
B
fovea centralis, optic disc
C
optic apex, cillary body
D
choroid, lucidum
8) visual acuity is defined as
A
the minimum distance between two points
B
the ability to distinguish two distinct points
C
the ability to read letters from a chart
D
the lack of cylindrical aberration in the lens of the eye
9) the 'strength' of a lens with a focal distance of 25 cm would be
A
15/20
B
4 diopters
C
-4 diopters
D
2.5 triopters
10) 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
hyperopia, convex lens
B
emmetropia, scalpel or laser
C
myopia, concave lens
D
Presbyopia, confocal lens
11) in Presbyopia, the eye loses its ability to __________, or adjust focus for near objects
A
accomodate
B
fluctuate
C
compensate
D
adapt
12) in the retina, cells referred to as ________ are less sensitive to light, but detect color
A
photorhodopsin
B
cones
C
rods
D
bipolar cells
13) 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
14) the structure which divides the middle ear from the outer ear is the
A
internal acoustic meatus
B
oval window
C
tympanic membrane
D
auditory canal/ tube
15) the middle ear contains the
A
acoustic meatus
B
cochlea and vestibular apparatus
C
ossicles
D
tympanic membrane
16) Rinne's test compares
A
auditory signals with visual signals
B
bone conduction with air conduction
C
endolymph motion with perilymph motion
D
bone conduction with nerve conduction
17) sound waves are transduced to nerve impulses in
A
the semicircular canal
B
the saccule
C
the ampula
D
the organ of corti
18) Rinne's and Weber's tests are used as part of a process to distinguish between
A
conduction deafness vs. sensory deafness
B
auditory hallucinations vs. neural hallucinations
C
unilateral vs. bilateral deafness
D
intrinsic vs. extrinsic deafness
19) the ________ organs, utricle and saccule are used to detect
A
vessicular, rotation
B
tripanar, vibration
C
otolith, acceleration
D
umbricle, deviation from a setpoint
20) of the semicircular canals, the lateral canals are used to detect rotation...
A
forward and backward (pitch), as in nodding the head 'yes'
B
side to side around the axis (yaw), as in shaking the head 'no'
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...
*select an answer for all questions
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