Bio 223 - Exam 4 With Quizs and Verified AnswersBio 223 - Exam 4 With Quizs and Verified AnswersBio 223 - Exam 4 With Quizs and Verified AnswersBio 223 - Exam 4 With Quizs and Verified AnswersBio 223 - Exam 4 With Quizs and Verified AnswersBio 223 - Exam 4 With Quizs and Verified AnswersBio 223 - E...
Bio 223 - Exam 4 With Quizs and Verified Answers
1. A sensory receptor characterized as a free nerve ending, using the neurotransmitter Substance P,
would most likely be a:
A. Mechanoreceptor
B. Thermoreceptor
C. Nociceptor
D. Photoreceptor
E. Chemoreceptor
2. Which of the following statements about hair cells is FALSE?
A. Hair cells within the Organ of Corti respond when pushed against the tectorial membrane B.
Hair cells in the utricle and saccule are activated only by rotational
movements
C. Hair cells are embedded in a gelatinous mass called the cupula within the semicircular ducts
D. Hair cells are mechanoreceptors
E. Hair cells depolarize as mechanically-gated potassium channels open and potassium enters the
cell
3. Which of the following is FALSE?
A. Pressure waves in the perilymph are produced by the in/out movement of the oval window
B. A sound with a high frequency of 16,000 Hz would cause larger amplitude vibration of the
Organ of Corti near the far end of the cochlear duct
C. The tympanic membrane and auditory ossicles amplify sound wave vibrations
D. Higher intensity sounds are perceived as louder because they cause larger amplitude vibration
of the Organ of Corti and stimulate more hair cells
4. Which for the following statements about tonic receptors and phasic receptors is
TRUE?
A. Both tonic and phasic receptors are active only when a change occurs in the stimulus being
monitored
B. A phasic receptor remains active as long as the stimulus is present while a tonic receptor is
active only when a change occurs in the stimulus being monitored C.
A tonic receptor remains active as long as the stimulus is present
D. while a phasic receptor is active only when a change occurs in the
stimulus being monitored
Both tonic and phasic receptors remain active as long as the stimulus is present
5. What three types of receptors respond to stretching, compression, twisting, or other distortions of
the cell membrane?
A. Chemoreceptors, nociceptors, baroreceptors
B. Nociceptors, gustatory receptors, proprioceptors
C. Tactile receptors, thermoreceptors, olfactory receptors
D. Proprioceptors, baroreceptors, tactile receptors
E. Baroreceptors, hair cells, photoreceptors
, 6. The division of the autonomic nervous system that maintains homeostasis during resting conditions
is the_______ division.
A. Somatomotor
B. Intramural
C. Sympathetic
D. Parasympathetic
E. Collateral
7. Damage to the stapedius muscle (stapes) would interfere with the ability to:
A. hear loud sounds
B. hear high frequency sounds
C. hear quiet sounds
D. protect the inner ear from damaging prolonged loud sounds
E. hear low frequency sounds
8. When all three cone populations are stimulated we see :
A. red
B. white
C. black
D. green
E. blue
Beta-1 blocking drugs will decrease heart rate and force of heart
contraction
9. Which of the following is TRUE? A.
B. Drugs that block the re-uptake of norepinephrine at synapses between postganglionic axons
and effectors would reduce sympathetic activation of effectors
C. Constriction of the bronchioles of the lung could be increased in response to either a
sympathetic agonist or a parasympathetic antagonist
D. Alpha adrenergic receptors are activated by norepinephrine but not by epinephrine
10. A reduction in sensitivity in the presence of a constant stimulus is:
A. Refraction
B. sensory coding
C. adaptation
D. line labeling
E. transduction
11. Which of the following is TRUE?
A. Receptive fields in the macular area of the retina are larger than receptive fields in the
peripheral retina and, therefore, acuity of vision is less in the macula than in the peripheral
retina.
B. Receptive fields in the macular area of the retina are smaller than receptive fields in the
peripheral retina and, therefore, acuity of vision is higher in the macula than in the
peripheral retina.
C. Receptive fields in the macular area of the retina are larger than receptive fields in the
peripheral retina and, therefore, acuity of vision is higher in the macula than in the peripheral
retina.
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