Neurotransmitters That Open Na⁺ Channels and Trigger Action Potentials in Receiving

question 11

Multiple Choice

Neurotransmitters that open Na⁺ channels and trigger action potentials in receiving cells are called

• A) inhibitory.
• B) excitatory.
• C) sympathetic.
• D) parasympathetic.

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Definitions:

Chemical Carcinogen

A substance or exposure that can lead to cancer by altering cellular metabolism or damaging DNA directly in cells.

Pericarditis

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Myocarditis

Inflammation of the heart muscle, which can affect the heart's electrical system and impair its ability to pump blood.

Congestive Heart Failure

A chronic condition where the heart doesn't pump blood as well as it should, leading to a buildup of fluid in the body.