Of the Common Specific Phobias Listed, Which Is the Most

question 653

Multiple Choice

Of the common specific phobias listed, which is the most common among Americans?

• A) fear of crowds
• B) fear of airplanes
• C) fear of closed spaces
• D) fear of storms, thunder, and lightning

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Definitions:

Dendrites

Extensions of neurons that receive signals from other neurons or sensory stimuli and convey them toward the cell body.

Chemical Synapse

A type of synapse at which a chemical (neurotransmitter) is released from the axon terminal of a neuron into the synaptic cleft between neurons, facilitating neural communication.

Synaptic Cleft

The tiny gap between two neurons, across which neurotransmitters travel to transmit nerve impulses.

Voltage-Gated Channel

A type of ion channel that opens or closes in response to changes in the electrical potential across a cell membrane.