Blocking Afferent Action Potentials from the Chemoreceptors in the Carotid

question 65

Multiple Choice

Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to

• A) changes in pH.
• B) changes in PCO2.
• C) changes in PO2.
• D) changes in blood pressure.
• E) A, B, and C

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Definitions:

Neurotransmitters

Chemical substances in the brain that transmit signals from one neuron to another, playing a key role in the function of the nervous system.

Synaptic Vesicles

Tiny sacs within a synapse that release neurotransmitters, enabling neuron communication.

Receptor Sites

Specific areas on the surface of cells or within cells that are sensitive to certain substances, allowing for communication between cells or systems.

Serotonin

A neurotransmitter involved in emotional arousal and sleep; deficiencies of serotonin have been linked to eating disorders, alcoholism, depression, aggression, and insomnia.