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(Portage) BIOD322 - Mod 2 Neural Function & Transmission - Final Assessment Guide $12.49   Add to cart

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(Portage) BIOD322 - Mod 2 Neural Function & Transmission - Final Assessment Guide

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(Portage) BIOD322 - Mod 2 Neural Function & Transmission - Final Assessment Guide (Portage) BIOD322 - Mod 2 Neural Function & Transmission - Final Assessment Guide (Portage) BIOD322 - Mod 2 Neural Function & Transmission - Final Assessment Guide

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  • September 2, 2024
  • 30
  • 2024/2025
  • Exam (elaborations)
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EmilioOchieng
BIOD322



Neural Function and Transmission




FINAL ASSESSMENT GUIDE




© Portage 2024/2025

,1. Which component of the neuron primarily receives synaptic
input from other neurons?
- A) Axon
- B) Dendrite
- C) Synaptic vesicle
- D) Myelin sheath
- Answer: B
- Rationale: Dendrites are the main structures on neurons
responsible for receiving synaptic inputs.


2. Voltage-gated sodium channels play a crucial role during which
phase of the action potential?
- A) Hyperpolarization
- B) Resting state
- C) Depolarization
- D) Repolarization
- Answer: C
- Rationale: During depolarization, voltage-gated sodium
channels open rapidly, allowing sodium ions to enter the cell,
making the interior more positive.


© Portage 2024/2025

, 3. Which of the following glial cells is responsible for myelinating
axons in the central nervous system?
- A) Schwann cells
- B) Microglia
- C) Astrocytes
- D) Oligodendrocytes
- Answer: D
- Rationale: Oligodendrocytes are responsible for forming the
myelin sheath in the central nervous system, which insulates axons
to accelerate electrical transmission.


4. Which neurotransmitter is primarily associated with the
regulation of mood, appetite, and sleep?
- A) Dopamine
- B) Acetylcholine
- C) Serotonin
- D) Glutamate
- Answer: C
- Rationale: Serotonin is known for its role in regulating
mood, appetite, and sleep, among other functions.


5. What is the primary role of the sodium-potassium pump in
maintaining resting membrane potential?
© Portage 2024/2025

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