When a Person Exhales to Complete a Yawn,what Happens

question 51

Multiple Choice

When a person exhales to complete a yawn,what happens?

• A)The rib muscles contract.
• B)The diaphragm contracts.
• C)The rib muscles act in the same way that they do in an inhalation.
• D)The diaphragm relaxes.

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Definitions:

Hyperpolarization

A change in a cell's membrane potential that makes it more negative, usually making it less likely to fire an action potential.

Resting Potential

The difference in electric charge between the inside and outside of a neuron's cell membrane when the neuron is not actively transmitting a signal.

Depolarization

The process in which the difference in electrical charge across a cell membrane decreases, often leading to the initiation of an electrical signal.

Positively Charged

Having a net electrical charge due to the loss of electrons, often pertains to ions or particles.