BIO 252 FINAL EXAM PRACTICE TEST
QUESTIONS AND ANSWERS COMPLETE A+
VERIFIED.
An elongate outer segment containing membranous discs and a narrow
connecting stalk that attaches the outer segment to the inner segment describes
A) a photoreceptor.
B) a ganglion cell.
C) a horizontal cell.
D) a bipolar cell.
E) an amacrine cell.
Verified Answer -A
The external ear ends at the
A) cochlea.
B) tympanic membrane.
C) pinna.
D) vestibule.
E) ossicles.
Verified Answer -B
The auditory ossicles connect the A) tympanic membrane to the round window.
B) oval window to the round window.
C) tympanic membrane to the oval window.
D) stapedius to the tympanic membrane.
,E) otitis to the media.
Verified Answer -C
Gravity and linear acceleration are sensed in the
A) semicircular canals.
B) saccule and utricle.
C) cochlea.
D) organ of Corti.
E) statoconia.
Verified Answer -B
Sound waves are converted into mechanical movements by the
A) tympanic membrane.
B) round window.
C) oval window.
D) cochlea.
E) auditory ossicles
Verified Answer -A
The vestibular nuclei at the boundary of the pons and the medulla function in all
of the following, except that they
A) relay vestibular information to the cerebellum.
B) send commands to motor nuclei in the brain stem and spinal cord.
C) relay vestibular information to the cerebral cortex.
D) send information to the vestibular complex of the inner ear.
,E) integrate the vestibular information arriving from each side of the head.
Verified Answer -D
Which of these anatomical sequences is correct?
A)tympanumNmalleusNincusNstapesNoval windowNround window
B)tympanumNincusNmalleusNstapesNoval windowNround window
C)tympanumNmalleusNincusNstapesNround windowNoval window
D)tympanumNincusNmalleusNstapesNround windowNoval window
E)tympanumNincusNstapesNmalleusNoval windowNround window
Verified Answer -A
The following is a list of the steps that occur in the production of an auditory
sensation.
1. The pressure wave distorts the basilar membrane on its way to the round
window.
2. Movement of the tympanic membrane causes displacement of the malleus.
3. Displacement of the stereocilia stimulates sensory neurons of the cochlear
nerve.
4. Movement of the malleus causes movement of the incus and stapes.
5. Distortion of the basilar membrane forces the hair cells of the organ of Corti
toward or away from the tectorial membrane.
6. Movement of the oval window establishes pressure waves in the perilymph
of the vestibular duct. The proper sequence for these steps is
A) 2, 5, 4, 6, 1, 3.
B) 2, 4, 1, 6, 5, 3.
C) 2, 4, 6, 1, 5, 3.
D) 2, 4, 6, 3, 5, 1.
, E) 2, 1, 4, 6, 5, 3.
Verified Answer -C
Endocrine cells
A) are a type of nerve cell.
B) contain few vesicles.
C) release their secretions onto an epithelial surface.
D) are modified connective-tissue cells.
E) release their secretions directly into body fluids.
Verified Answer -E
Steroid hormones
A) bind to receptors in the nucleus of their target cells.
B) remain in circulation for relatively short periods of time.
C) are transported in the blood dissolved in the plasma.
D) are proteins.
E) cannot diffuse through cell membranes.
Verified Answer -A
Which of the following hormones is water soluble and therefore binds to
extracellular receptors? A) insulin
B) epinephrine
C) cortisol
D) A and B only
E) A, B, and C
Verified Answer -D
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