« previous next »

Author Question: In 2:1 AV block, _____. a. the atrial rhythm (P-P interval) is regular b. the ventricular rhythm ... (Read 142 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?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Examples of four letter formats: (A) block style, (B) modified block style, (C) modified block style ... Examples of four letter formats: (A) block style, (B) modified block style, (C) modified block style ...
Heat Exchanger Block Diagram Feedback Control System Heat Exchanger Block Diagram Feedback Control System
Sites of cholinergic antagonist actions. Muscarinic antagonists block cholinergic receptors in the ... Sites of cholinergic antagonist actions. Muscarinic antagonists block cholinergic receptors in the ...
Enzyme block in phenylketonuria (PKU). Enzyme block in phenylketonuria (PKU).
Ventricular septal defect Ventricular septal defect
Given the values of sin θ, determine the values of θ over the interval [0, 2pi] Given the values of sin θ, determine the values of θ over the interval [0, 2pi]
Video: Sister chromatids of a metaphase chromosome animation

For a complete list of videos, visit our video library