nervous system review. myelinated nerve fibers appear a.black b.brown c.grey d.transparent e.white...
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Nervous system review
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Myelinated nerve fibers appear
A. BlackB. BrownC. GreyD. TransparentE. White
Answer: E
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Grey matter:Cortex and Basal ganglia
White matter:Tracts
Grey matter:Horns
White matter:Tracts
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Which of these pairs denote the same type of neuron?
A. Afferent: MotorB. Afferent: InterneuronC. Efferent: InterneuronD. Efferent: MotorE. Efferent: Sensory Answer: D
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Path of TravelSensory interneurons motor
(afferent) (association) (efferent)
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A subdivision of the nervous system that regulates the activity of cardiac muscle, smooth muscle and glands is the
A. Autonomic nervous systemB. Central nervous systemC. Peripheral nervous systemD. Somatic nervous system
Answer: A
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The chief positive intracellular ion in a resting neuron is
A. Ca+2
B. Cl-1
C. K+1
D. Na+1
E. PO4-3
Answer: C
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• Sodium • Potassium
Polarized• Negative inside• Positive outside
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A) astrocyteB) ependymal cellC) microglial cellD) oligodendrocyteE) satellite cell
1. Produces myelin for CNS
2. Phagocytic
3. Found in PNS
4. Connects fibers to blood supply
Answer: D
Answer: C
Answer: E
Answer: A
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A
B
C
D
E
1. Fiber (axon)
2. Epineurium
3. Perineurium
4. Fascicle
5. Endoneurium
Answer: A
Answer: D
Answer: C
Answer: E
Answer: B
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A
B
C
D
E
1.Pia mater 3. Skull (cranium)
2. Dura mater 4. Arachnoid materAnswer: E
Answer: C
Answer: B
Answer: D
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A) ganglionB) parasympathetic neuronC) postganglionic neuronD) preganglionic neuronE) sympathetic neuron
1. Cell body in CNS
2. Elicits “fight or flight” response
3. Entire cell ouside CNS; communicates with effector
Answer: D
Answer: E
Answer: C
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A) acetylcholineB) dopamineC) epinephrineD) gama-aminobutyric acid (GABA)E) serotonin
1. Connected to addiction
2. Most common autonomic and muscular
3. Controls appetite
4. Most common inhibitory
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A) cardiac plexusB) celiac (solar) plexusC) pulmonary plexusD) inferior mesenteric plexusE) renal plexus
1. Innervates kidneys
2. Controls largest number of organs
3. Controls digestive functions
Answer: E
Answer: B
Answer: D
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Autonomic Plexuses• Tangled networks of axons from sympathetic
& parasympathetic neurons• Cardiac (heart), pulmonary (lungs), celiac or
solar (liver, gall bladder, stomach, pancreas, spleen, kidneys, testes, ovaries), superior mesenteric (small & large intestines), inferior mesenteric (large intestine), renal (kidneys & ureters)
“wind knocked out of you”