Author Question: The myocardium is thickest in the ____. a. left atrium b. right atrium c. left ventricle d. ... (Read 55 times)

penza

  • Hero Member
  • *****
  • Posts: 1,022
The myocardium is thickest in the ____.
 
  a. left atrium
  b. right atrium
  c. left ventricle
  d. right ventricle

Question 2

Which of the following correctly describes multifocal atrial tachycardia?
 
  a. The atrial rhythm is regular.
  b. The ventricular rhythm is irregular.
  c. The atrial and ventricular rhythms are regular.
  d. The atrial and ventricular rhythms are irregular.



trog

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

C
The wall of the left ventricle is threefold thicker than that of the right because the left ventricle propels blood to most vessels of the body. The right ventricle moves blood only through the blood vessels of the lungs and then into the left atrium.

Answer to Question 2

D
With multifocal atrial tachycardia, the atrial and ventricular rhythms are usually irregular as the pacemaker site shifts from the SA node to ectopic atrial locations or AV junction.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

trog

  • Sr. Member
  • ****
  • Posts: 343

 

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

To maintain good kidney function, you should drink at least 3 quarts of water daily. Water dilutes urine and helps prevent concentrations of salts and minerals that can lead to kidney stone formation. Chronic dehydration is a major contributor to the development of kidney stones.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

For a complete list of videos, visit our video library