Quiz Flashcards
Which cells are responsible for photopic (day) vision as well as trichromatic (color) vision?
- Ganglion cells
- Bipolar cells
- Cones
- Rods
Cones
Which of these is most vulnerable to irreversible damage caused by a very loud noise?
- Tympanic membrane
- Cochlear hair cells
- Ossicles
- Fibers of the cochlear nerve
Cochlear Hair Cells
The incus articulates with which bone(s)?
- Stapes
- Malleus, stapes, and tympanic
- Malleus
- Malleus and stapes
Malleus and stapes
What is the correct order of cells in the retina from back to front?
- Ganglion - photoreceptor - bipolar
- Photoreceptor - bipolar - ganglion
- Photoreceptor - ganglion - bipolar
- Ganglion - bipolar - photoreceptor
Photoreceptor - bipolar - ganglion
Nerve fibers from all regions of the retina converge on the nerve.
- optic disc
- fovea centralis
- Lens
Optic Disc
Stimuli produced by sound waves reach the brain following which pathway?
• Cochlear duct - oval window - auditory canal - tympanic membrane - ossicles - spiral organ - fibers of cochlear nerve
• Tympanic membrane - auditory canal - ossicles - oval window - cochlear duct - spiral organ - fibers of cochlear nerve
• Auditory canal - tympanic membrane - oval window - cochlear duct - ossicles - spiral organ - fibers of cochlear nerve
• Auditory canal - tympanic membrane - ossicles - oval window - cochlear duct - spiral organ - fibers of cochlear nerve
• Auditory canal - tympanic membrane - ossicles - oval window - cochlear duct - spiral organ - fibers of cochlear nerve
A T O O C S F
Each upward movement of the basilar membrane causes the stereocilia of the inner hair cells to bend.
gates.
- Ca2+
- Na+
- K+
- CI-
K +
Select the two types of cholinergic receptors?
- Muscarinic
- Nicotinic
- Adrenergic
- Alpha
- Beta
- Adrenergic
- Alpha
- Beta
Presynaptic neurons extend to synapse on the target cell to cause an effect.
- True
- False
False
The autonomic nervous system is also called the visceral motor system.
- True
- False
True
Some ____ neurons are specialized to detect stimuli, whereas _____ effectors of the nervous system.
- Afferent; inter-
- Afferent; efferent
- Motor: sensory
- Efferent; afferent
Afferent; efferent
A ganglion is a swelling along a nerve containing the cell bodies of peripheral neurons.
- True
- False
True
The two major neurotransmitters of the autonomic nervous system are:
- Norepinephrine
- Acetylcholine
- Calcium
- Nicotine
- Norepinephrine
- Acetylcholine
- Calcium
- Nicotine
Sympathetic ganglions are branched and the fibers can follow numerous routes.
- True
- False
True
Which is the major visceral motor control center of the autonomic nervous system?
- Cerebral cortex
- Pineal Gland
- Thalamus
- Hypothalamus
Hypothalamus
Nerve fibers that release epinephrine are called:
- nicotinic
- beta
- adrenergic
- alpha
- antagonistic
Alpha
Sympathetic nerve fibers are not associated with situations involving
- digestion
- stress
- anger
- exercise
digestion
Preganglionic fibers of the autonomic efferent pathway are _____ and secrete _____
- myelinated; acetylcholine (ACh) and norepinephrine(NE)
- myelinated; acetylcholine (ACh)
- unmyelinated; acetylcholine (ACh)
- myelinated; norepinephrine (NE)
myelinated; acetylcholine (ACh)
Which one of the following best describes the order of a visceral reflex?
- Sensory receptor - interneuron - afferent nerve fiber - efferent nerve fiber - gland
- Sensory receptor → efferent nerve fiber - interneuron - afferent nerve fiber - gland
- Sensory receptor - afferent nerve fiber - interneuron - efferent nerve fiber - gland
- Sensory receptor - efferent nerve fiber - afferent nerve fiber - interneuron - gland
Sensory receptor - afferent nerve fiber - interneuron - efferent nerve fiber - gland
Which of the following statements is true regarding parasympathetic tone?
- It does not affect heart rate.
- It accelerates the resting heart rate above its intrinsic rate.
- It holds the resting heart rate below its intrinsic rate.
It holds the resting heart rate below its intrinsic rate.
Which of the following is associated with the “flight-or-fight” reaction?
- Reduced urinary output
- Increased gastric motility
- Pupillary constriction
- Reduced heart rate
Reduced urinary output
The binding of _______ to a nicotinic receptor of a muscle fiber will _____ it.
- acetylcholine; inhibit
- acetylcholine; excite
- norepinephrine; excite
acetylcholine; excite
Structure D
Vestibule
Structure F
tympanic membrane
Structure E
Sclera
Structure C
Iris
E
Optic disc
