Epinephrine and Norepinephrine Exert Which of the Following Effects on the Heart

question 10

Multiple Choice

Epinephrine and norepinephrine exert which of the following effects on the heart?

• A) Decrease the heart rate
• B) Increase force of myocardial contraction
• C) Decrease conduction velocity
• D) Lengthen the refractory period of the atrioventricular junction

---

Definitions:

Random Letters

A sequence of letters that lacks any order or predictability, often used in studies or tests assessing memory or pattern recognition.

Random Digits

A series of numbers generated in such a way that each digit has an equal probability of being any value independently of the previous digits.

Central Executive

A component of working memory model that acts as a control system, overseeing attentional processes, and coordinating the information in the system's other components.

Shifts of Attention

The process of changing the focus of cognitive resources from one object or task to another.