« previous next »

Author Question: In 2:1 AV block, _____. a. the atrial rhythm (P-P interval) is regular b. the ventricular rhythm ... (Read 133 times)

student77

  • Hero Member
  • *****
  • Posts: 567
on: Jun 25, 2018
In 2:1 AV block, _____.
 
  a. the atrial rhythm (P-P interval) is regular
  b. the ventricular rhythm (R-R interval) is irregular
  c. the PR interval lengthens until a P wave appears with no QRS complex
  d. there is no PR interval because the atria and ventricles beat independently of each other

Question 2

The thick, muscular middle layer of the heart wall that contains the atrial and ventricular muscle fibers necessary for contraction is the __________.
 
  Fill in the blanks with correct word


AaaA

  • Sr. Member
  • ****
  • Posts: 339
Reply #1 on: Jun 25, 2018
Answer to Question 1

A
Second-degree 2:1 AV block is characterized by P waves that are normal in size and shape, but every other P wave is not followed by a QRS. The atrial rate is twice the ventricular rate.

Answer to Question 2

myocardium


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

Did you know?

More than 4.4billion prescriptions were dispensed within the United States in 2016.

T wave (ventricular repolarization). T wave (ventricular repolarization).
Third-degree heart block. Third-degree heart block.
A pump showing regular with a pump octane of 87, plus rated at 89, and premium rated at 93. These ... A pump showing regular with a pump octane of 87, plus rated at 89, and premium rated at 93. These ...
A spark tester looks like a regular spark plug with an alligator clip attached to the shell. This ... A spark tester looks like a regular spark plug with an alligator clip attached to the shell. This ...
Ventricular tachycardia Ventricular tachycardia
Sketch a graph of the function h(x), by hand on the following interval: Sketch a graph of the function h(x), by hand on the following interval:
Video: Introduction to Macular Degeneration

For a complete list of videos, visit our video library