Once Cells in the SA Node Reach Threshold

question 7

Multiple Choice

Once cells in the SA node reach threshold,

• A)an action potential is triggered.
• B)a heart attack occurs.
• C)nothing happens until the AV node is innervated.
• D)the heart stops beating.

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Definitions:

Disorder

A disruption to regular bodily or mental functions, often characterized by specific symptoms and signs, leading to distress or impaired functioning.

Herpes Virus

A large family of viruses that can cause diseases in animals and humans, including cold sores and chickenpox.

Chicken Pox

A highly contagious viral disease, typically occurring in children, characterized by an itchy rash, fever, and fatigue, caused by the varicella-zoster virus.

Shingles

A viral infection causing a painful rash, usually appearing as a strip of blisters on one side of the body.