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

Author Question: The time required for the atrial impulse to travel through the atrioventricular node is defined as ... (Read 23 times)

kellyjaisingh

  • Hero Member
  • *****
  • Posts: 540
on: Jul 16, 2018
The time required for the atrial impulse to travel through the atrioventricular node is defined as which of the following?
 
  a. PR segment c. QRS interval
  b. PR interval d. ST segment

Question 2

How many millimeters are between each heavy vertical line on electrocardiographi c paper?
 
  a. 1.0 c. 4.0
  b. 2.0 d. 5.0


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

hramirez205

  • Sr. Member
  • ****
  • Posts: 345
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: B
The PR interval ranges from 0.12 to 0.2 second and is the time it takes for the impulse initiated in the atria to travel through the atrioventricular node. The PR segment occurs between the end of the P wave and the beginning of the QRS interval, corresponds to the 0.1-second delay that occurs within the atrioventricular node. The PR segment is included in the PR interval. The QRS interval represents ventricular depolarization, and the ST segment represents ventricular depolarization.

Answer to Question 2

ANS: D
The area between the heavy vertical lines on the electrocardiographi c paper represents 5.0 mm.


kellyjaisingh

  • Member
  • Posts: 540
Reply 2 on: Jul 16, 2018
Thanks for the timely response, appreciate it

meow1234

  • Member
  • Posts: 333
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Time Slows Down Near Matter Time Slows Down Near Matter
Conditions Required for Bacterial Growth Conditions Required for Bacterial Growth
Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ... Using a vacuum hose and a test light to ground one cylinder at a time on a distributorless ignition ...
The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ... The slight (5 microsecond) difference in the firing of the companion cylinders is enough time to ...
Using a vacuum hose and a grounded test light to ground one cylinder at a time on a DIS. This works ... Using a vacuum hose and a grounded test light to ground one cylinder at a time on a DIS. This works ...
Disitive Time For Vegetables Disitive Time For Vegetables
Video: Structures that affect circulation - venous return

For a complete list of videos, visit our video library