Heart Rate Is Slowest If the Pacemaker Activity Signal Originates

question 103

Multiple Choice

Heart rate is slowest if the pacemaker activity signal originates in the

• A) SA node.
• B) AV node.
• C) normal pacemaker of the heart.
• D) ventricular conducting cells.

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Definitions:

Itching And Discomfort

Unpleasant sensations on the skin that evoke the desire to scratch, often associated with various medical conditions or irritations.

Vaginal Muscles

Muscular structures in the vagina that contract and relax to aid in sexual intercourse, childbirth, and menstrual flow.

Braxton-Hicks Contractions

Irregular, usually painless uterine contractions that occur throughout pregnancy, often mistaken for labor pains.

Cervix

The narrow lower end of the uterus, through which a baby passes to reach the vagina.