This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which letter in the figure identifies the cardiac cells through which there is a 100-ms delay? a. ... (Read 12 times)

kamilo84

  • Sr. Member
  • ****
  • Posts: 495
on: Jul 16, 2018
Which letter in the figure identifies the cardiac cells through which there is a 100-ms delay?
 
  a. A c. C
  b. B d. D

Question 2

The fourth intercostal space at the left sternal margin is the site for which of the following elec-trocardiogram leads?
 
  a. V1 c. V3
  b. V2 d. V4


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: D
As the electrical impulse travels through the atrioventricular node, there is a 100-ms delay in the conduction. This allows the atria to become fully depolarized and contract before ventricular ex-citation begins. This allows the atrial contraction and emptying to contribute optimally to ventric-ular filling.

Answer to Question 2

ANS: B
V2 is placed in the fourth intercostal space, at the right sterna margin.


kamilo84

  • Sr. Member
  • ****
  • Posts: 495
Reply #2 on: Jul 16, 2018
Correct answers!


mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Jul 16, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

Did you know?

Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.

Did you know?

Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Did you know?

Medication errors are more common among seriously ill patients than with those with minor conditions.

Specialized cells capable of dormancy. Specialized cells capable of dormancy.
Biological transistor enables computing within living cells Biological transistor enables computing within living cells
Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages Demonstrate the Application of Triangular, Figure-Eight, and Tubular Bandages
The Main Macromolecules in Cells The Main Macromolecules in Cells
Fossil Prokaryotic Cells Fossil Prokaryotic Cells
Video: Arthritis

For a complete list of videos, visit our video library