Home
Class 11
BIOLOGY
Assertion:The Eustachian tube helps in e...

Assertion:The Eustachian tube helps in equalising the pressures on either sides of the ear drum.
Reason:The Eustachian tube connects the middle ear cavity with the pharynx.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B

NA
Promotional Banner

Topper's Solved these Questions

  • MORPHOLOGY OF FLOWERING PLANTS

    NCERT FINGERTIPS|Exercise Morphology Of Flowering Plants|135 Videos
  • PHOTOSYNTHESIS IN HIGHER PLANTS

    NCERT FINGERTIPS|Exercise Photosynthesis In Higher Plants|136 Videos

Similar Questions

Explore conceptually related problems

Eustachian tube helps to

The "____" helps in equalising the pressure on either sides of the eardrum.

Tube that connects the middle ear cavity with the pharynx is called

Name the tube which connects the middle ear to throat.

Select the correct statement ? i. The ears perform two sensory functions, hearing and maintenance of body balance ii. The ear ossicles increases the efficiency of transmissions of sound waves to the inner ear iii. The Eustachian tube helps in equalising the pressure on either sides of the ear drum iv. The fluid-filled inner ear called labyrinth v. The membranous labyrinth is filled with a fluid called perilymph vi. The coiled portion of the labyrinth is called cochlea

Structure that helps to maintain equal pressure on both sides of ear drum is

Eustachian tube is a passage connecting the

Passage connecting middle ear with pharynx is called :

NCERT FINGERTIPS-NEURAL CONTROL AND COORDINATION-Neural Control And Coordination
  1. Human eye ball consists of three layers and it encloses

    Text Solution

    |

  2. Wax gland present in the ear canal is called

    Text Solution

    |

  3. The part of internal ear responsible for hearing is

    Text Solution

    |

  4. The organ of Corti is a structure present in

    Text Solution

    |

  5. While travelling to higher altitudes, people can feel pain in the ear ...

    Text Solution

    |

  6. Assertion:This PNS comprises of all the nerves of the body associated ...

    Text Solution

    |

  7. Assertion:Multipolar neurons have two or more axons and one dendrite ...

    Text Solution

    |

  8. Assertion:Myelinated nerve fibres are present in spinal and cranial ne...

    Text Solution

    |

  9. Assertion:The resting membrane of the neuron exhibits polarity of char...

    Text Solution

    |

  10. Assertion:Electrical synapses are rare in our system. Reason:Impulse...

    Text Solution

    |

  11. Assertion:Association areas are neither clearly sensory nor motor in f...

    Text Solution

    |

  12. Assertion:Medulla contains centres which control respiration, cardiova...

    Text Solution

    |

  13. Assertion:Reflex arc comprises of at least one afferent neuron, one ef...

    Text Solution

    |

  14. Assertion:Choroid layer is thick over the posterior two-third of the e...

    Text Solution

    |

  15. Assertion:When all the three types of cones are stimulated equally, a ...

    Text Solution

    |

  16. Assertion:At fovea, the visual acuity is the greatest. Reason:The fo...

    Text Solution

    |

  17. Assertion:The space between the cornea and the lens is called the vitr...

    Text Solution

    |

  18. Assertion:The inner ear contains three ossicles (malleus, incus and st...

    Text Solution

    |

  19. Assertion:The Eustachian tube helps in equalising the pressures on eit...

    Text Solution

    |

  20. Assertion:Vestibular apparatus helps us in maintaining balance of body...

    Text Solution

    |