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Colt's NSSG

QuestionAnswer
1. Which two major divisions make up the nervous system? A. Somatic and autonomic B. Central and peripheral C. Sympathetic and parasympathetic D. Motor and sensory
2. Which type of cell supports, protects, and nourishes neurons? A. Axons B. Dendrites C. Neuroglia D. Myelin
3. The myelin sheath increases the speed of nerve impulses by enabling what process? A. Continuous conduction B. Saltatory conduction C. Chemical diffusion D. Synaptic delay
4. Which part of the neuron receives incoming signals?C A. Axon B. Dendrites C. Synaptic knob D. Axon hillock
5. The gap between two communicating neurons is called the: A. Synaptic cleft B. Node of Ranvier C. Axon terminal D. Soma
6. Which ion rushes into the neuron during depolarization? A. Potassium B. Calcium C. Sodium D. Chloride
7. The autonomic nervous system controls: A. Voluntary muscle movement B. Reflex arcs only C. Involuntary body functions D. Sensory perception
8. Which neurotransmitter is most associated with muscle contraction? A. Dopamine B. Serotonin C. Acetylcholine D. GABA
9. The sympathetic division is responsible for: A. Rest and digest B. Fight or flight C. Memory formation D. Voluntary movement
10. Which brain region coordinates balance and fine motor control? A. Cerebrum B. Cerebellum C. Medulla oblongata D. Thalamus
11. The blood–brain barrier is formed primarily by: A. Microglia B. Astrocytes C. Schwann cells D. Ependymal cells
12. Which lobe of the brain is responsible for decision‑making and personality? A. Occipital B. Parietal C. Temporal D. Frontal
13. The occipital lobe processes: A. Hearing B. Vision C. Touch D. Smell
14. Which structure connects the two cerebral hemispheres? A. Thalamus B. Corpus callosum C. Pons D. Hypothalamus
15. The spinal cord ends at approximately which vertebral level? A. C7 B. T12 C. L1–L2 D. L5
16. A reflex arc does NOT require which of the following? A. Sensory neuron B. Motor neuron C. Interneuron D. Brain involvement
17. Which part of the brain regulates hunger, thirst, and body temperature? A. Thalamus B. Hypothalamus C. Pons D. Amygdala
18. Which ion leaves the neuron during repolarization? A. Sodium B. Potassium C. Calcium D. Chloride
19. The parasympathetic nervous system uses which neurotransmitter at most synapses? A. Norepinephrine B. Dopamine C. Acetylcholine D. Glutamate
20. Which structure produces cerebrospinal fluid (CSF)? A. Pituitary gland B. Choroid plexus C. Pineal gland D. Basal nuclei
Created by: user-2023680
 

 



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