Home
Class 11
BIOLOGY
How do parasympathertic neural signals a...

How do parasympathertic neural signals affect the working the heart

A

Heart rate decreases but cardiac output increases

B

Renduce both heart rate and cardiac output

C

heart rate is increased without affecting the cardiac output

D

Both heart rate and cardiac output increase

Text Solution

Verified by Experts

The correct Answer is:
B

Parasympathetic neural signals (a component of ANS) decrease the rate of heart beat, speed of conduction of action potential and thereby the cardiac output.
Promotional Banner

Topper's Solved these Questions

  • BODY FLUIDS AND CIRCULATION

    A2Z|Exercise SECTION C: PREVIOUS YEARS' EXAMINATION QUESTIONS (AIIMS QUESTIONS )|17 Videos
  • BODY FLUIDS AND CIRCULATION

    A2Z|Exercise SECTION C: PREVIOUS YEARS' EXAMINATION QUESTIONS (ASSERTION AND REASON TYPE QUESTIONS )|6 Videos
  • BODY FLUIDS AND CIRCULATION

    A2Z|Exercise Section B: Assertion-reasoning Questions|12 Videos
  • BIOMOLECULES

    A2Z|Exercise Section D: Chapter End Test|50 Videos
  • BREATHING AND EXCHANGE OF GASES

    A2Z|Exercise Section D: Chapter-end Test|50 Videos

Similar Questions

Explore conceptually related problems

Parasympathetic neural signals decrease all the following except (A) conduction speed of action potentials (B) cardiac output (C) duration of cardiac cycle (D) rate of heart beat

neural signals through parasympathetic neural signals (another comonent of ANS) can a. Increase the heart beat rate b. Decrease the heart beat rate c. increase the strength of ventricular contraction e. Increase cardiac output f. Decreases cardiac output

If neural signals are sent through the parasympathetic nerves of the ANS, the heart rate will

In which the following can increase the rate of heart beat ? ltbr. (A) Sympathetic neaural signals. (B) Parasympathetic neural signals (C ) Adrenal medullary hormones. (9 ) Vagus nerve (E ) Thyroxine hormone (F) Acetylcholine

Strong neural signals from the pneumatic centre

A2Z-BODY FLUIDS AND CIRCULATION -SECTION C: PREVIOUS YEARS' EXAMINATION QUESTIONS (NEET/AIPMT Questions )
  1. The other term for heart attack is

    Text Solution

    |

  2. Which is not correct about circulatory system of aves

    Text Solution

    |

  3. How do parasympathertic neural signals affect the working the heart

    Text Solution

    |

  4. Person with blood group AB is considered as universal recipient becaus...

    Text Solution

    |

  5. Mitral vave in mammalian heart guards the opening between

    Text Solution

    |

  6. A cainical condition in which the bond marrow stops producing WBC, is ...

    Text Solution

    |

  7. The RBC membrane of a person contains no antigen. His blood group will...

    Text Solution

    |

  8. Which of the following statements is true with respect to sounds produ...

    Text Solution

    |

  9. Person with blood group 'O' are universal donors because they have

    Text Solution

    |

  10. Blood pressure in the mammalina aorta is maximum during

    Text Solution

    |

  11. Which one of the following is correct?

    Text Solution

    |

  12. Erythropoiesis starts in

    Text Solution

    |

  13. Doctors use stethoscope to hear the sounds produced during each cardia...

    Text Solution

    |

  14. hearding of arteries due to precipitatin of Ca salts and chlosterol ca...

    Text Solution

    |

  15. Reduction in pH of blood will

    Text Solution

    |

  16. Blood pressure in the pulmonary artery is

    Text Solution

    |

  17. name the blood cells, when reduction in number can cause clotting diso...

    Text Solution

    |

  18. The hapatic partal vein drains blood to liver from

    Text Solution

    |

  19. Rrog's heart when taken out of the body continues to beat for sometime...

    Text Solution

    |

  20. Match the items given in Column I with those in Column II and select t...

    Text Solution

    |