The Steps Below Refer to Various Stages in Transmission at a Chemical

question 36

Multiple Choice

The steps below refer to various stages in transmission at a chemical synapse: 1. Neurotransmitter binds with receptors associated with the postsynaptic membrane.
2) Calcium ions rush into neuron's cytoplasm.
3) An action potential depolarizes the membrane of the axon terminal.
4) The ligand-gated ion channels open.
5) The synaptic vesicles release neurotransmitter into the synaptic cleft.
Which sequence of events is correct?

• A)1 → 2 → 3 → 4 → 5
• B)2 → 3 → 5 → 4 → 1
• C)3 → 2 → 5 → 1 → 4
• D)4 → 3 → 1 → 2 → 5
• E)5 → 1 → 2 → 4 → 3

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Definitions:

Hallucinations

Sensory experiences that appear real but are created by the mind, without any external presence of the actual stimulus.

Dopamine Receptors

Proteins located on the surface of neurons in the brain that bind to dopamine, a neurotransmitter involved in reward, motivation, and many aspects of behavior.

Hallucinations

Perceptions in the absence of external stimuli, such as seeing, hearing, or feeling something that isn't there.

Schizophrenia

A psychiatric disorder characterized by delusions, hallucinations, disorganized speech, and impaired cognitive functionality.