Home
Class 12
BIOLOGY
How do parasympathetic neural signals ...

How do parasympathetic neural signals affect the working of the heart ?

A

Reduce both heart rate and cardiac output

B

Heart rate is increased without affecting the cardiac output.

C

Both heat rate and cardiac output increase

D

Heart rate decreases but cardiac output increases.

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • BODY FLUIDS AND CIRCULATIONS

    CENGAGE BIOLOGY ENGLISH|Exercise Exercise (Assertion - Reasoning Questions)|15 Videos

  • BIOTECHNOLOGY:PRINCIPLES AND PROCESSES

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES (Choose the correct option)|33 Videos

  • ECOSYSTEM

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES (CHOOSE THE CORRECT OPTION)|41 Videos

Similar Questions

Explore conceptually related problems

How do parasympathetic neural signals affect the working of heart

How do parasympathertic neural signals affect the working the heart

Muscles connected with working of insect heart are

P.Normal activities of the heart are regulated extrinsically i. e auto regulated by specialized muscles. Q. A special neural center in the medulla oblongata can moderate the cardiac function through the autonomic nervous function ( ANS) . R. Parasympathetic mental signals decrease the rate of heartbeat. S. Adrenal medullary hormones increase cardiac output. How many of the given statements are incorrect about the regulation of cardiac activities ?

Assertion : Neural signals through sympathetic nerves can increase the strength of ventricular contraction Reason : Parasympathetic neural signals synergistically act with sympathetic neutral signal to increase the cardiac output.

If parasympathetic nerve of the rabbit is cut then heart beat

The cranial nerves in humans that send parasympathetic stimulation to, among other organs, the heart, stomach, and liver are :

The work done by the heart is J J per beat .Calculate the power of the heart if it beats. 72 times in minute.

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

Which of the following options correctly idenifies the effect of sympathetic and parasympathetic neural system on given features or organs ?

CENGAGE BIOLOGY ENGLISH-BODY FLUIDS AND CIRCULATIONS -ARCHIVES (Choose the correct option)
  1. Which one of the following statements is correct regarding blood pres...

    Text Solution

    |

  2. A person with unknown blood group under ABO system, has suffered much ...

    Text Solution

    |

  3. If due to some injury the chordae tendineae of the tricuspid valve of ...

    Text Solution

    |

  4. Which two of the following changes (i-iv) usually tend to occur in the...

    Text Solution

    |

  5. Bundle of His' is a part of which one of the following organs in human...

    Text Solution

    |

  6. Arteries are best defined as the vessels which

    Text Solution

    |

  7. A certain road accident patient with unknown blood group needs immedia...

    Text Solution

    |

  8. Person with blood group AB is considerred as universal recipient becau...

    Text Solution

    |

  9. How do parasympathetic neural signals affect the working of the hear...

    Text Solution

    |

  10. The diagram given here is the standard ECG of a normal person.The P-wa...

    Text Solution

    |

  11. Figure shows schematic plan of blood cir- culation in humans with labe...

    Text Solution

    |

  12. Which one of the following is correct ?

    Text Solution

    |

  13. Erythropoiesis starts in

    Text Solution

    |

  14. Blood pressure in the mammlian aorta is maximum during

    Text Solution

    |

  15. Which one of the following animals has two separate circulatory pathwa...

    Text Solution

    |

  16. Doctors use stethoscope to hear the sounds prodcued during each cardia...

    Text Solution

    |

  17. Reduction in pH of blood will

    Text Solution

    |

  18. Blood pressure in the pulmonary artery is

    Text Solution

    |

  19. Name the blood cells, whose reduction in number can cause clotting ...

    Text Solution

    |

  20. Serum differs from blood in

    Text Solution

    |