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Contraction of diaphragm increases the v...

Contraction of diaphragm increases the volume of thoracic chamber in the

A

Antero-posterior axis

B

Dorso-ventral axis

C

Ventro-lateral axis

D

Dorso-lateral axis

Text Solution

Verified by Experts

The correct Answer is:
A
Contraction of diaphragm increases the volume of thoracic chamber in the antero-posterior axis.Â
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Contraction of diaphragm increases the volume of the thoracic chamber in the ....(A).... axis while the contraction of external intercostal muscles increases the volume of the thoracic chamber in the ..... (B).... axis.

Inspiration can occur if the intra-pulmonary pressure is ________A________ than the atmospheric pressure. Inspiration is initiated by the contraction of diaphragm which increases the volume of thoracic chamber in the ________B_______ axis.

Read the following statement about human respiration ltbgt (i) trachea divides at the level of 6th thoracic vertebra (ii) terminal bronchioles alveoli and their ducts form the respiratory part of this system (iii) contractionof diaphragm increases volume of thoracic chamber doosoven trally (iv) the internal intercostals help in inspiration

The contraction of .......muscles lifts up the ribs and the sternum causing an increase in the volume of the thoracic chamber in the dorso-ventral axis.

Fill up the blanks in the following paragraph by selecting the correct option. The movement of air into and out of the lungs is carried out by creating a (i).____ between the lungs and the atmosphere. Inspiration can occur if intra-pulmonary pressure is (ii).____ Expiration takes place when the intra-pulmonary pressure is (iii).____ than the atmospheric pressure. Expiration takes place when the intra-inspiration is initiated by the (iv).____ of diaphragm which (v).____the volume of thoracic chamber in the antero-posterior axis.

Which of the following help to increase the volume of the thoracic chamber during the mechanism of berating ?

Contraction of diaphragm during inhalation

What is a diaphragm?

Vaginal diaphragm is

What happens to the volume of pulmonary cavity when there is an increase in the volume of thoracic chamber?

A2Z-BREATHING AND EXCHANGE OF GASES-Section A: Topicwise Questions Topic 2 : Mechanism Of Breathing (respiratory Volumes And Capacities)
  1. Pressure gradient between the lungs and atmosphere is generated by ...

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  2. Inspiration is initiated by the contraction of

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  3. Contraction of diaphragm increases the volume of thoracic chamber in t...

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  4. The contraction of .......muscles lifts up the ribs and the sternum ca...

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  5. External and internal intercostal muscles are present in

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  6. Normal breathing rate of a healthy human is

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  7. In breathing movements, air volume can be estimated by

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  8. Additional volume of air, a person can expire by a forcible expiration...

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  9. Total volume of air a person can inspire after a normal expiration is ...

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  10. the amount of vloume of air that can be inspired / expired normally is...

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  11. The volume of air present in the lungs after forceful expiration is ca...

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  12. Volume of air that remain in the lungs after a normal expiration is ca...

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  13. Total volume of air a person can expire after a normal inspiration is ...

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  14. Total volume of air accommodated in the lungs at the end of a forced i...

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  15. Additional volume of air a person can inspire by a forcible inspiratio...

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  16. Match the columns I and II, and choose the correct combination from th...

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  17. Recognise the figure and find out the correct matching

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  18. Vital capacity, the maximum volume of air a person can inhale, is meas...

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  19. Muscles attached to diaphragm contract during inspiration to make it

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  20. Match the columns

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