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Author Question: What makes it impossible for the myocardium to go into tetany? a. Absolute refractory period b. ... (Read 34 times)

Wadzanai

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on: Jul 16, 2018
What makes it impossible for the myocardium to go into tetany?
 
  a. Absolute refractory period
  b. Automaticity
  c. Cardiac myofibrils
  d. Intercalated discs

Question 2

What is the ability of myocardial tissue to propagate electrical impulses?
 
  a. Automaticity
  b. Conductivity
  c. Contractility
  d. Excitability


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cam1229

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Unlike those of other muscle tissues, however, cardiac contractions cannot be sustained or teta-nized because myocardial tissue exhibits a prolonged period of inexcitability after contraction. The period during which the myocardium cannot be stimulated is called the refractory period.

Answer to Question 2

ANS: A
Inherent rhythmicity or automaticity is the unique ability of the cardiac muscle to initiate a spon-taneous electrical impulse.


Wadzanai

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Reply #2 on: Jul 16, 2018
TY


cam1229

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Reply #3 on: Jul 16, 2018
Happy to Help


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