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

Author Question: A patient's ECG was abnormal and the physician determined that a pacemaker was necessary. Which of ... (Read 31 times)

Yolanda

  • Hero Member
  • *****
  • Posts: 757
on: Aug 20, 2018
A patient's ECG was abnormal and the physician determined that a pacemaker was necessary. Which of the following best describes the normal electrical functioning of the heart?
 a. Electrical activity is initiated by the SA node and depolarization is carried from the ventricle by the AV node.
  b. Electrical activity is initiated by the AV node and depolarization is carried from the atria by the SA node.
  c. As the resting membrane potential decreases the SA node will reach its depolarization threshold.
  d. As the resting membrane potential increases the AV node will reach its depolarization threshold.

Question 2

Relaxation of the ventricle as it fills with blood is referred to as
 a. diastole.
  b. systole.
  c. tachycardia.
  d. arrhythmia.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Ashley I

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Aug 20, 2018
Answer to Question 1

c

Answer to Question 2

a


Yolanda

  • Member
  • Posts: 757
Reply 2 on: Aug 20, 2018
Wow, this really help

shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Patient Position for Posterior Percussion Patient Position for Posterior Percussion
The effectiveness of patient education The effectiveness of patient education
A patient centered care approach A patient centered care approach
Some common eye disorders. (D) Conjunctival hemorrhage of the right eye of this patient with ... Some common eye disorders. (D) Conjunctival hemorrhage of the right eye of this patient with ...
The position of the fetus is first determined by ultrasound The position of the fetus is first determined by ultrasound
Video: Four Giant Convection Cells oF Earth

For a complete list of videos, visit our video library