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NSCI Exam 1 Questions with 100% Correct Answers 2024/2025
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NSCI Exam 1 Questions with 100% Correct Answers 2024/2025 Nissil Stain - ANSWERSstains the nucleus and rough er Camillo Golgi - ANSWERSReticulum, reticular theory (neurons are all connected) Cajal - ANSWERSNeuron doctrine- NS is made up of discrete cells Neuron doctrine - ANSWERSneuro...

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  • November 1, 2024
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  • 2024/2025
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NSCI Exam 1 Questions with 100%
Correct Answers 2024/2025

Nissil Stain - ANSWERSstains the nucleus and rough er



Camillo Golgi - ANSWERSReticulum, reticular theory (neurons are all connected)



Cajal - ANSWERSNeuron doctrine- NS is made up of discrete cells



Neuron doctrine - ANSWERSneuron is the structural functional unit of the nervous system

- NS is made up of discrete cells (connected by synapses not one long string)



Glial Cells - ANSWERScells in the nervous system that support function of neurons



Ependymal Cells - ANSWERSline the ventricles and produced CSF



Astrocytes - ANSWERSregulae the levels of chemicals and ions surrounding neuron

- form BBB



reactive astrocytes - ANSWERSdamage to the brain activates astrocytes --> response to injury



Microglia - ANSWERSresident immune cells CNS

- phagocytosis: remove debris after injury



Oligodendrocytes - ANSWERSCNS myelin

-can synapse to multiple neurons

-if one cell dies multiple die

,Schwann Cells - ANSWERSPNS myelin

- can wrap around one neuron axon



White matter - ANSWERSmyelinated axons



grey matter - ANSWERSsomas



Function of glial cells - ANSWERS- synapse formation

- directing neurite outgrowth

- neuronal survival and repair

- synaptic activity



Central Nervous System - ANSWERSbrain and spinal cord



Cerebrum - ANSWERSlargest/most rostral part of brain

- split into two hemispheres by sagittal fissure

- left controls right body, right controls left body



Brain stem - ANSWERSrelays info from the cerebrum to the spinal cord and cerebellum



Spinal cord - ANSWERSinfo from skin, joints and muscles to the brain



Dorsal Root of spinal cord - ANSWERSSensory afferents bringing info to the brain



Ventral root of spinal cord - ANSWERSmotor efferents bringing info away from brain



Peripheral nervous system - ANSWERSthe sensory and motor neurons that connect the central nervous
system to the rest of the body

, Somatic PNS - ANSWERSspinal nerves that innervate skin, joints, and muslces under voluntary control



Somatic motor axons - ANSWERSmuscle contractions

- motor neurons



Somatic sensory axons - ANSWERScollect info

-sensory neurons



Dorsal root ganglia - ANSWERScell bodies of the sensory afferents that are outside of spinal cord



Autonomic nervous system - ANSWERSneurons that innervate internal organs, blood vessels and glands

- involuntary



visceral sensory axons - ANSWERSinfo about pressure/oxygen content of the blood --> CNS



Visceral motor fibers - ANSWERSsignal contraction and relaxation of muscles that form walls of intestines



Sensory afferents - ANSWERScarry info to brain



Motor efferents - ANSWERScarry info away from brain



Meninges - ANSWERSsurround and protect CNS



Dura Mater - ANSWERSoutermost, tough layer



Arachnoid membrane - ANSWERSmiddle layer of the three membranes (meninges) that surround the
brain and spinal cord

- weblike

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