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Why do we call our heart myogenic?
Biology
Biology

Class 11

NCERT

Publisher:
NCERT
Subject:
Biology
1

Chapter 1: The Living World

11 questions

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2

Chapter 2: Biological Classification

12 questions

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3

Chapter 3: Plant Kingdom

12 questions

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4

Chapter 4: Animal Kingdom

15 questions

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5

Chapter 5: Morphology of Flowering Plants

15 questions

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6

Chapter 6: Anatomy of Flowering Plants

12 questions

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7

Chapter 7: Structural Organization in Animals

14 questions

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8

Chapter 8: Cell: The Unit of Life

14 questions

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9

Chapter 9: Biomolecules

15 questions

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10

Chapter 10: Cell Cycle and Cell Division

16 questions

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11

Chapter 11: Transport in Plants

16 questions

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12

Chapter 12: Mineral Nutrition

10 questions

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13

Chapter 13: Photosysnthesis in Higher Plants

9 questions

arrow
14

Chapter 14: Respiration in Plants

12 questions

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15

Chapter 15: Plant Growth and Development

11 questions

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16

Chapter 16: Digestion and Absorption

15 questions

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17

Chapter 17: Breathing and Exchange of Gases

14 questions

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18

Chapter 18: Body Fluids and Circulation

14 questions

Q1
Describe the evolutionary change in the pattern of heart among the vertebrates.
Q2
Why do we call our heart myogenic?
Q3
Sino-atrial node is called as the pacemaker of our heart. Why?
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19

Chapter 19: Excretory Products and their Elimination

12 questions

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20

Chapter 20: Locomotion and Movement

10 questions

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21

Chapter 21: Neural Control and Coordination

12 questions

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22

Chapter 22: Chemical Coordination and Integration

9 questions

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Question
Easy
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Solving time: 2 mins

Why do we call our heart myogenic?

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Updated on: Jan 29, 2023

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Biology (NCERT)

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Text SolutionText solutionverified iconVerified

  • In the human heart, contraction is initiated by a specially modified heart muscle known as the 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 heartbeat.
  •  Hence, it is known as the pacemaker. Since the heartbeat is initiated by the SA node and the impulse of contraction originates in the heart itself, the human heart is termed as myogenic. The hearts of vertebrates and mollusks are also myogenic.
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Question Text
Why do we call our heart myogenic?
Updated OnJan 29, 2023
TopicBody Fluids and Circulation
SubjectBiology
ClassClass 11
Answer TypeText solution:1 Video solution: 1
Upvotes208
Avg. Video Duration7 min