When Chemically (Ligand) Gated Channels Open and Allow Negatively Charged

question 11

Multiple Choice

When chemically (ligand) gated channels open and allow negatively charged ions (e.g., chloride, Cl^-) to enter a neuron in the dendrites or cell body, the consequence is

• A)a decrease in the neuron's excitability (i.e., its tendency to create an action potential)
• B)an increase in the neuron's excitability (i.e., its tendency to create an action potential)
• C)to create an action potential

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Definitions:

Serotonin Antagonist

A type of drug that works by blocking serotonin receptors, affecting mood, appetite, and other functions.

Motor Neurons

Nerve cells that transmit impulses from the brain or spinal cord to muscles or glands, causing them to act.

Sensory Neurons

Specialized neurons responsible for converting external stimuli from the organism's environment into internal electrical impulses.

Neural Networks

Computing systems inspired by the biological neural networks that constitute animal brains, used in machine learning and artificial intelligence.