« previous next »

Author Question: In 2:1 AV block, _____. a. the atrial rhythm (P-P interval) is regular b. the ventricular rhythm ... (Read 139 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?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Left: This web was woven by a 17-day-old spider, showing regular patterns. Right: This web was woven Left: This web was woven by a 17-day-old spider, showing regular patterns. Right: This web was woven
Atrial Flutter Atrial Flutter
The use of antispasmodics, which block release of Ach or calcium, can result in reduced pain as well ... The use of antispasmodics, which block release of Ach or calcium, can result in reduced pain as well ...
Sites of cholinergic antagonist actions. Muscarinic antagonists block cholinergic receptors in the ... Sites of cholinergic antagonist actions. Muscarinic antagonists block cholinergic receptors in the ...
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:
The expected value for a binomial probability distribution is _____. The expected value for a binomial probability distribution is _____.
Video: Simple and Double Sugar

For a complete list of videos, visit our video library