Peripheral Chemoreceptors Are Specialized Cells in Contact with Arterial Blood

question 64

Multiple Choice

Peripheral chemoreceptors are specialized cells in contact with arterial blood that respond directly to changes in blood

• A) pH.
• B) P_O2.
• C) P_CO2.
• D) P_CO2 and P_O2.
• E) P_O2, pH, and P_CO2.

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Definitions:

Resting Neuron

A neuron in its non-excited state, maintaining a stable negative charge inside the cell relative to the outside, ready to transmit signals when activated.

Endorphin Release

The process through which the body's natural painkillers, endorphins, are released, often in response to stress or exercise, producing a feeling of well-being.

Motor Responses

Bodily reactions and movements that are the result of processing information through the nervous system, often in response to environmental stimuli.

Brief Euphoria

A short-lived feeling of intense happiness or well-being.