Author Question: The six limb leads view the heart in the frontal plane as if the body were flat. Indicate whether ... (Read 74 times)

sc00by25 · **on:** Jun 25, 2018

The six limb leads view the heart in the frontal plane as if the body were flat.

Indicate whether the statement is true or false

Question 2

The term ectopic refers to an extra muscle bundle consisting of working myocardial tissue that forms a connection between the atria and ventricles outside the normal conduction system.

Indicate whether the statement is true or false

cegalasso · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

T
Frontal plane leads view the heart from the front of the body as if it were flat. Directions in the frontal plane are superior, inferior, right, and left. Six leads view the heart in the frontal plane. Leads I, II, and III are called standard limb leads. Leads aVR, aVL, and aVF are called augmented limb leads.

Answer to Question 2

F
The term ectopic, which means out of place, is used to describe an impulse that originates from a source other than the SA node. Ectopic pacemaker sites include the cells of the AV bundle and Purkinje fibers, although their intrinsic rates are slower than that of the SA node.