Why do we call our heart myogenic? | Class 11 Biology Chapter Body Fluids and Circulation, Body Fluids and Circulation NCERT Solutions

Current NCERT chapter

Academic session 2026-27, Chapter 15 in the current curriculum.

Welcome to the NCERT Solutions for Class 11 Biology - Chapter Body Fluids and Circulation. This page offers a step-by-step solution to the specific question from Exercise 1, Question 9: Why do we call our heart myogenic?. With detailed answers and explanations for each chapter, students can strengthen their understanding and prepare confidently for exams. Ideal for CBSE and other board students, this resource will simplify your study experience.

Question 9: Why do we call our heart myogenic?
Answer:

In the human heart, contraction is initiated by a special modified heart muscle known as sinoatrial node. It is located in the right atrium. The SA node has the inherent power of generating a wave of contraction and controlling the heart beat. Hence, it is known as the pacemaker. Since the heart beat is initiated by the SA node and the impulse of contraction originates in the heart itself, the human heart is termed myogenic. The hearts of vertebrates and molluscs are also myogenic.

Study Tips for Answering NCERT Questions:

NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:

  • Read the question carefully and focus on the core concept being asked.
  • Reference examples and data from the chapter when answering questions about Body Fluids and Circulation.
  • Review previous year question papers to get an idea of how such questions may be framed in exams.
  • Practice answering questions within the time limit to improve your speed and accuracy.
  • Discuss your answers with your teachers or peers to get feedback and improve your understanding.

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Comments

  • Rushi
  • Mar 22, 2020

Thank for help me to easy to understand and easy to learn tq a lot

  • Sagar Barman
  • Aug 27, 2019

Thanks,for making the answer so easy🙏🙏🙏🙏

  • Varshini R Gowda
  • Aug 21, 2019

Tq a lot it helped me to score marks in subjective examination

  • Safi ahmad
  • Feb 09, 2019

Thanks for help me

  • Neelav
  • Dec 09, 2018

Thanks for help...

  • Siyana
  • Dec 14, 2017

Good

  • umar basha
  • Sep 04, 2016

thanx a lot for clearing my doubt

  • rupal
  • Jan 20, 2016

Why we call our heart with a name heart why we don't call it with other name?

  • karan
  • Jun 07, 2015

Thanks... For helping me.

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Welcome to the NCERT Solutions for Class 11 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 9: Why do we call our heart myogenic?....

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