NURS8022 - FINAL EXAM: NEURO UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

NURS8022 - FINAL EXAM: NEURO UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS

Question:
1. Neuron
Answer:
a nerve cell; the basic building block of the nervous system

Question:
2. Neuroglia
Answer:
"nerve glue"; many types of cells that support, insulate, and protect neurons

Question:
3. Soma
Answer:
cell body; densely packed cell bodies in the CNS are nuclei; ganglia or plexus in PNS

Question:
4. dendrites
Answer:
carry nerve impulses toward the cell body; receptive portion of the neuron that receives a stimulus and
continues further conduction

Question:
5. Axon
Answer:
carry nerve impulses away from the cell body

Question:
6. Sensory neuron
Answer:
transmit afferent impulses from sensory receptors to the CNS

Question:
7. Associational (interneurons)
Answer:
transmit impulses from neuron to neuron

Question:
8. Motor neuron
Answer:
transmits nerve impulses from the brain and spinal cord to muscles and glandular epithelial tissues
(efferent)

,Question:
9. Wallerian degeneration
Answer:
degeneration of a nerve fiber that has been separated by injury or disease

Question:
10. Nerve Regeneration
Answer:
Closer the cell body of the nerve, the greater the chances that the nerve cell will die and not regenerate;
Crushing injury to the nerve allows recovery more fully than does a cut injury

Question:
11. Nerve synapses
Answer:
Spaces between the neurons of the brain and central nervous systems that must be crossed for messages to
be sent.

Question:
12. Synaptic boutons
Answer:
where neurotransmitters are stored

Question:
13. Neurotransmitters
Answer:
chemical messengers that cross the synaptic gaps between neurons

Question:
14. Presynaptic neurons
Answer:
proximal to the synapse; relay impulses toward the synapse

Question:
15. Postsynaptic neuron
Answer:
distal to the synapse; relay impulses away from synapse

Question:
16. Reticular formation
Answer:
network of connected nuclei that regulate vital reflexes, such as cardiovascular and respiratory function;
maintains wakefulness

Question:
17. Cerebrum

, Answer:
Largest part of the brain; responsible for voluntary muscular activity, vision, speech, taste, hearing,
thought, and memory.

Question:
18. Gray matter
Answer:
cell bodies

Question:
19. White matter
Answer:
myelinated fibers

Question:
20. Prefrontal lobe
Answer:
goal-oriented behavior, short-term or recall memory

Question:
21. Premotor
Answer:
Programs motor movement; basal ganglia (extrapyramidal system; efferent pathways outside medulla
pyramids)

Question:
22. primary motor area
Answer:
primary voluntary motor area; corticospinal tracts descend down spinal cord; contralateral control

Question:
23. Broca's area
Answer:
Controls language expression - an area of the frontal lobe, usually in the left hemisphere, that directs the
muscle movements involved in speech.

Question:
24. Parietal lobe
Answer:
somatic sensory input

Question:
25. Occipital lobe
Answer:
visual cortex