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Author Question: Intercalated discs in the myocardium perform a very important function. Which of the following ... (Read 77 times)

ts19998

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on: Jul 16, 2018
Intercalated discs in the myocardium perform a very important function. Which of the following describes that function?
 
  a. Absolute refractory period
  b. Automaticity
  c. Contractility
  d. Electrical conduction

Question 2

The branches of the left coronary artery DO NOT supply which area of the heart?
 
  a. Majority of the interventricular septum
  b. Majority of the left ventricle
  c. Majority of the left atrium
  d. Sinus node


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tashiedavis420

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

ANS: D
Cardiac fibers are separated by irregular transverse thickenings of the sarcolemma called interca-lated discs. These discs provide structural support and aid in electrical conduction between fi-bers.

Answer to Question 2

ANS: D
In combination, the branches of the left coronary artery normally supply most of the left ventri-cle, the left atrium, and the anterior two-thirds of the interventricular septum.


ts19998

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Reply 2 on: Jul 16, 2018
Gracias!

lindahyatt42

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Reply 3 on: Yesterday
Excellent

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