Cardiovascular System Practice questions

अब Quizwiz के साथ अपने होमवर्क और परीक्षाओं को एस करें!

Which of the following functions as the electrical connection between the atria and ventricles?

AV bundle

Which of the following characteristics of the intrinsic conduction system best explains why atrial contraction finishes before ventricular contraction begins?

Action potentials are delayed at the AV node.

Contraction of the atria is triggered by electrical activity that is recorded on the ECG tracing as the __________.

P wave

Which part of the intrinsic conduction system initiates the depolarizing impulse and normally sets the pace for the entire heart?

SA node

How does the presence of pacemaker cells affect the electrical activity of the cardiac contractile cells?

The pacemaker cells are able to stimulate action potentials in the cardiac contractile cells.

The specialized cardiac cells of the SA node are most precisely known as __________.

pacemaker cells


संबंधित स्टडी सेट्स

Chapter 5-6 review (homework telecommunication)

View Set

ACC 298--CH. 2 (Intro to Debits and Credits and Journal Entry)

View Set

Chapter 7: Statements on Standards for Accounting & Review Services

View Set

chapter 4 three demential structure of proteins

View Set

Ch.2: Intro to Cognitive Science & Cognitive Informatics

View Set

Unit 4 (chapter 13) History of Graphic Design

View Set

Chapter 2 - business and staffing strategies

View Set

Econ Chapter 10 (Bank management)

View Set