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42 Cards in this Set
- Front
- Back
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What are the two spinal cord enlargements that give rise to nerves serving the limbs.
A)cervical and sacral B)cervical and lumbar C)thoracic and lumbar D)thoracic and sacral |
B)cervical and lumbar
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What separates the frontal and parietal lobes?
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cental sulcus
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Which of the following neuroglia types are not found in the central nervous system?
A)Oligodendrocytes B)ependymal cells C)microglia D)satellite cells |
D)satellite cells
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During which sleep stage are most skeletal muscles actively inhibited?
A)REM B)stage 3 C)Stage 1 D)stage 4 |
A)REM
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Which of the following would be found in white matter?
A)dentites B)myelinated fibers C)cell bodies D)unmyelinated fibers |
B)myelinated fibers
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which of the following spinal pathways carry impulses asscoiated with pain and decussate in the spinal cord?
A)lateral spinothalamic tract B)Dorsal spinocerebellar tract C)Pyramidal pathway D)Medial lemniscus |
A)lateral spinothalamic tract
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Damage to which of the following structures would result in lack of coordination in body movements?
A)epithalamus B)midbrain C)pons D)cerebellum |
D)cerebellum
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Which division of your peripheral nervous system is responsible for conserving energy and maintaining normal "housekeeping" acitvities?
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parasympathetic divsion
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Which of the following CNS disorders is characterized by the distruction of the ventral horn neurons?
A)Huntington's disease B)Multiple sclerosis C)Amyotrophic lateral sclerosis D)Spina bifida |
C)Amyotrophic lateral sclerosis
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Sensory neurons synapse with interneurons in the ______of the spinal cord.
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dorsal horn
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What happens when a neuron responds to an inhibitory signal?
A)depolarization B)Na+ channels open C)K+ channels open D)there is no change |
C)K+ channels open
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Which of the following statements describe an EPSP?
A)chemically gated channel for Na+ open, resulting in hyperpolarization B)Chemically gated channel for K+ open, resulting in hyperpolarization C)Chemically gated channel for Na+ and K+ open, resulting in depolarization D)chemically gated channel for K+ open, resulting in depolariztion. |
C)Chemically gated channel for Na+ and K+ open, resulting in depolarization
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Which of the following is not a fuction of the hypothalamus?
A)thermoregulation B)Control the endocrine system C)Control the autonomic nervous system D)Relay information to the cerebral cortex |
D)Relay information to the cerebral cortex
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What is the sequance of events of an action potential?
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Voltage-gated Na+ and K+ channels are closed; Voltage-gated Na+ channels open;Voltage gated Na+ channels close and voltage gated K+ channels open; voltage-gated K+ channels slowly close.
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CSF is produced by in the _______and circulates throughout the CNS before being absorbed into the blood stream in the ______.
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Choroid plexus, Subarachnoid space
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Biogenic amine neurotransmitters include all of the following except_______.
A)dopamine B)acetylcholine C)histamine D)seratonin |
B)acetylcholine
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Whichh of following statements about graded potential isn't true?
A) Graded potentials occur in dentrites B)Graded potentials decrease in intesity as they move away form the initial site of stimulation C)Graded potentials can cause a localized depolarization or hyperpolarization D)Graded potentials occur in the middle of an axon. |
D)Graded potentials occur in the middle of an axon.
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Norepinepherine is a neurotransmitter that acts slowly because it has ______action and requires _____to work.
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indirectt;cAMP
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Which of the following is not a secondary brain vesicle.
A)myelencephalon B)diencephalon C)prosencephalon D)telencephalon |
C)prosencephalon
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If an EEG was conducted on your right now(while u are mentally alert), which times of waves would be present?
A)alpha waves B)theta waves C)delta waves D)beta waves |
D)beta waves
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An exceptionally strong stimulus can trigger a response.
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Relative refractory period
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The neuron cannot respond to a second stimulus, no matter how strong.
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absolute refractory period
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The specific period during which potassium ions diffuse out of the neuron due to a change in membrane permeablitliy.
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repolarization
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Auditory area
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Temporal lobe
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Somatic motor cortex
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Frontal lobe
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Primary sensory cortex
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Parietal lobe
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visual area
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occipital lobe
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One incoming fiber triggers responses in ever-increasing numbers farther and farther along the circuit.
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Diverging circuit
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Involved in control of rhythmic activites such as breathing.
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Reverberating circuit
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Different types of sensory input can have the same ultimate effect.
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converging circuit
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Ascending spinocerebella tracts decussate.
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false
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The amygdala is part of the reticular formation.
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false
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Degeneration of the substantia nigra is the cause of Alzheimer's disease
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False
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Electrical synapses require neurotranmitters to diffuse across a synaptic cleft.
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false
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Vesicles containing neurotransmitters reach the axon terminal through retrograde movement.
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false
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N-CAM is an important in directing the growth cone.
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true
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The corpus callosum is an example of a projection fiber.
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false
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Nissl bodies are the rough ER of a neuron and located the soma.
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true
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The dura mater is the innermost layer of the meninges covering the brain and spinal cord.
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false
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Most unipolar neurons are efferent neurons.
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false
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The right cerebral hemisphere is more dominant in visual-spatial skills. This is an example_______.
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cerebral dominance
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_________tracts conduct sensory impulses.
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ascending
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