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EEG210 Final Exam Review Questions and Answers 100% Pass
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EEG210 Final Exam Review Questions and Answers 100% Pass cell body (soma) - Contains the nucleus and other parts of the cell needed to sustain its life Makes Neurotransmitters Dendrites - Branchlike parts of a neuron that are specialized to receive information. myelin sheath - A layer of fatty...

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  • January 9, 2025
  • 14
  • 2024/2025
  • Exam (elaborations)
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  • eeg210 final exam review questions and answers 100

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EEG210 Final Exam Review Questions
and Answers 100% Pass

cell body (soma) - ✔✔Contains the nucleus and other parts of the cell needed to sustain its life




Makes Neurotransmitters


Dendrites - ✔✔Branchlike parts of a neuron that are specialized to receive information.


myelin sheath - ✔✔A layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly

greater transmission speed of neural impulses as the impulse hops from one node of ranvier to the next.


Axon - ✔✔Carries neurotransmitters to synapse, action potentials occur here.




Node of Ranvier and Myelin Sheath speed this process.


Nodes of Ranvier - ✔✔a gap in the myelin sheath of a nerve, between adjacent Schwann cells. Speeds up

propagation.


Schwann cells - ✔✔Type of glia in the PNS, Supporting cells of the peripheral nervous system responsible

for the formation of myelin.


Ogliodendrocytes - ✔✔Glia that Produces myelin sheath around nerve fibers in the central nervous

system (CNS)




Author. Emily Charlene, ©2025 All Rights Reserved.

, 2|Page


Synapse - ✔✔the junction between the axon tip of the sending neuron and the dendrite or cell body of the

receiving neuron, neurotransmission occurs here.


action potential - ✔✔A momentary reversal in electrical potential across a plasma membrane that occurs

when a cell has been activated by a stimulus. Driving force of neurotransmission.


resting potential - ✔✔Difference in electrical charge/the state of the neuron when not firing a neural

impulse (-70 microvolts) More Na+ outside the cell, More K+ inside cell.


Depolarization (Step 2) - ✔✔The process during the action potential when sodium is rushing into the cell

causing the interior to become more positive. Inputs to the dendrites or cell bodies of neurons have an

effect on the neuron.


Repolarization (Step 3) - ✔✔Return of the cell to resting state, caused by reentry of potassium (K+) into

the cell while sodium (Na +) exits the cell. At the peak, K+ leaves the neuron.


Hyperpolarization (Step 4) - ✔✔Repolarization overshoots the resting membrane potential briefly,

causing an increase in the membrane potential of a cell, relative to the normal resting potential. New

action potentials are very difficult during this time.


Glia - ✔✔Maintain homeostasis, form myelin, and provide support and protection for the neurons.


Astrocytes - ✔✔form the blood brain barrier and regulate the chemical environment of the neurons


synaptic vesicles - ✔✔Tiny pouches or sacs in the axon terminals that contain chemicals called

neurotransmitters.


presynaptic cell - ✔✔The transmitting neuron in a synapse.


postsynaptic cell - ✔✔The neuron, muscle, or gland cell that receives the signal from a neuron.


synaptic cleft - ✔✔The narrow gap that separates the presynaptic neuron from the postsynaptic cell.




Author. Emily Charlene, ©2025 All Rights Reserved.

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