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Bio Quiz 11

Terms in this set (25)

The likely effect on a neuron of 2 excitatory signals and 20 inhibitory signals is
Select one:
a. transmission of a nerve impulse.
b. transmission of a nerve impulse, releasing excitatory neurotransmitters at the next synapse.
c. transmission of a nerve impulse, releasing inhibitory neurotransmitters at the next synapse.
d. prohibiting the axon from firing at all.
e. confused integration.
d. prohibiting the axon from firing at all.
Certain people have an inability to speak due to brain damage. The most likely area of the brain that has been damaged is
Select one:
a. Broca's area.
b. the meninges.
c. the ventricles.
d. the amygdala.
e. the limbic system.
a. Broca's area.
When individuals experience fear and pleasure, what part of the brain has been stimulated?
Select one:
a. hypothalamus
b. pons
c. reticular activating system
d. limbic system
e. thalamus
d. limbic system
Which of the following is NOT true about the myelin sheath?
Select one:
a. It is composed of layers of cellular membrane, containing myelin around nerve fibers.
b. It gives nerve fibers their white, glistening appearance.
c. It provides a pathway for new fiber growth if the axon is severed.
d. It decreases the speed of nerve impulse conduction.
e. It is formed from Schwann cells.
d. It decreases the speed of nerve impulse conduction.
What are the interconnecting spaces that produce and serve as a reservoir for cerebrospinal fluid in the brain called?
Select one:
a. meninges
b. ventricles
c. corpus callosum
d. insula
e. ganglia
b. ventricles
Spinal nerves contain
Select one:
a. only sensory fibers.
b. only motor fibers.
c. both sensory and motor fibers.
d. only parasympathetic fibers.
e. only ganglia.
c. both sensory and motor fibers.
Due to experimentation, it was discovered that which structure was involved in the conversion of short-term memories to long-term memories?
Select one:
a. hippocampus
b. diencephalon
c. amygdala
d. brain stem
e. cerebellum
a. hippocampus
What are the long-term consequences associated with the use of cocaine?
Select one:
a. a decrease in dopamine production
b. a decrease in the natural production of endorphins
c. the release of excess dopamine
d. hallucinations, anxiety, depression, body image distortion, and other psychotic symptoms
e. All of the answer choices are consequences associated with the use of cocaine.
a. a decrease in dopamine production
Carpal tunnel syndrome results in damage to the median nerve, resulting in lack of control to the wrist and also numbness. This indicates that
Select one:
a. the nerve contained sensory neurons.
b. the nerve contained motor neurons.
c. the nerve contained both sensory and motor neurons.
d. the damage was to a central body in a ganglion.
e. the damage was to the spinal cord interneuron.
c. the nerve contained both sensory and motor neurons.
Which of the following is not a symptom of addiction to a certain drug?
Select one:
a. The drug continues to cause physical or psychological changes in your body.
b. It takes more drug to cause the same changes as before.
c. You cannot function without having the drug.
d. You spend more and more time trying to get the drug and/or thinking about using the drug.
e. You quit eating as long as you can use the drug.
a. The drug continues to cause physical or psychological changes in your body.
Myelinated axons that run together in bundles in the CNS are
Select one:
a. ventricles.
b. meninges.
c. cortices.
d. tracts.
e. ganglia.
d. tracts.
In the axon, the nerve impulses travel
Select one:
a. toward the cell body.
b. away from the cell body.
c. bidirectionally toward AND away from the cell body.
d. away from the synapse.
e. toward the dendrites.
b. away from the cell body.
Which health problem is associated with a decrease in the ability to taste certain foods?
Select one:
a. allergies
b. upper respiratory tract infection
c. brain tumors
d. exposure to drugs
e. All of the answer choices can decrease a person's ability to taste certain foods.
e. All of the answer choices can decrease a person's ability to taste certain foods.
Which type(s) of receptor is(are) found in the retina?
Select one:
a. rods and cones
b. organ of Corti
c. muscle spindles
d. olfactory cells
e. hair cells in ampullae
a. rods and cones
What part of the brain do the olfactory bulbs connect to?
Select one:
a. limbic system
b. pons
c. medulla
d. brain stem
e. temporal lobe
a. limbic system
Which of the following is NOT a true statement about the rod photoreceptors?
Select one:
a. They contain the pigment rhodopsin.
b. They are functional only in dim light.
c. They detect even the slightest motion.
d. They detect fine detail.
e. The stimulus formed results from the breakdown of rhodopsin.
d. They detect fine detail.
Vertigo would most likely result from
Select one:
a. continuous stimulation of the tympanic membrane.
b. bipolar cells stimulating the retina.
c. continuous fluid movement in the semicircular canals.
d. increased vibrations in the basilar membrane.
e. lack of red or green cones.
c. continuous fluid movement in the semicircular canals.
The bones of the middle ear
Select one:
a. respond to a change in the position of the head.
b. transmit sound waves.
c. are sense receptors connected to the auditory nerve.
d. are named the malleus, incus, and otolith.
e. are connected to the tectorial membrane and oval window.
b. transmit sound waves.
What are the three areas of the inner ear?
Select one:
a. semicircular canals, vestibule, and cochlea
b. semicircular canals, vestibule, and organ of Corti
c. malleus, vestibule, and cochlea
d. malleus, incus, and stapes
e. malleus, incus, and vestibule
a. semicircular canals, vestibule, and cochlea
Which of the following groups contain all membranous structures?
Select one:
a. ossicles, tympanic membrane, oval window
b. cochlea, ampulla, otoliths
c. tympanic membrane, oval window, round window
d. malleus, incus, stapes
e. tympanic membrane, oval window, stapes
c. tympanic membrane, oval window, round window
Where are the photoreceptors of the eye located?
Select one:
a. retina
b. optic nerve
c. choroid layer
d. sclera
e. organ of Corti
a. retina
You are a sun worshipper, constantly sunbathing without sunscreen or other protective devices. In addition you are also a smoker. These behaviors have significantly increased your chances of getting what disease?
Select one:
a. glaucoma
b. cataracts
c. vertigo
d. Meniere's disease
e. anosmia
b. cataracts
David has a problem with his vision. He sees very well but everything is in black and white. The problem is most likely with what part of his eye?
Select one:
a. the cornea
b. the cones
c. the lens
d. the fovea centralis
-XX- e. the retina
???
What structures are responsible for detecting odor?
Select one:
a. receptor proteins on the olfactory cells
b. receptor lipids on the olfactory cells
c. receptor carbohydrates on the olfactory cells
d. receptor proteins on the sclera
e. receptor proteins on the ossicles
a. receptor proteins on the olfactory cells
Taste buds and olfactory cells are considered
Select one:
a. mechanoreceptors.
b. chemoreceptors.
c. radioreceptors.
d. proprioceptors.
e. general receptors.
b. chemoreceptors.
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