Breathing or ventilation, Biology

Assignment Help:

VENTILATION OR BREATHING -

15-16 / minute (In Rabbit 36-38). In children 35 / 1 minute.

1.      INSPIRATION

  • In take of air is known as inspiration. First of all external I.C.M. is contracted.
  • Ribs become straight. Sternum comes out 1.5 cm. It is thoracic breathing (25%).
  • Radial muscles of diaphragm are contracted. It becomes flat.
  • It is abdominal breathing or true breathing (75%). Both breathing collectively known as Eupnia.
  • Thoracic breathing takes place in deep breath only. It gets stimulation from cerebrum.
  • Due to all volume of thoracic cavity is increased & pressure is decreased. (1-3 mm Hg than 760 mm Hg).
  • To fullfil this pressure air enters into lungs.

1574_inspiration and expiration.png

2.      EXPIRATION -

  • All muscles are relaxed so it is passive process. Volume is decreased.
  • Pressure is increased (1-3 mm Hg than 760 mm Hg). Air is given out.

Related Discussions:- Breathing or ventilation

Bro cheese, so bro how do get rid of my bro cheese coz that bro stinks

so bro how do get rid of my bro cheese coz that bro stinks

What is autophagic intracellular digestion, What is autophagic intracellula...

What is autophagic intracellular digestion? Why is this type of intracellular digestion intensified in an organism undergoing starvation? Autophagic intracellular digestion is

Biochemestry, what are peptides and poly peptides hormones

what are peptides and poly peptides hormones

Unicellular organisms, How was it proved in the case of Amoeba that the key...

How was it proved in the case of Amoeba that the key to the life of a cell is Nucleus?

Sedge-meadow stage - hydrarch, Sedge-Meadow Stage - Hydrarch Favoured ...

Sedge-Meadow Stage - Hydrarch Favoured by an increasing amount of light, as the former occupants disappear, they gradually change the reed swamp into a sedge meadow. And now s

Show cardiovascular risk factors, Q. Show Cardiovascular Risk Factors? ...

Q. Show Cardiovascular Risk Factors? It must be coming in your mind several times that why do some people suffer from heart disease while others do not? Well the most obvious r

Explain the advantage of sponge method, Explain the Advantage of Sponge Met...

Explain the Advantage of Sponge Method? Advantage: The method is suitable when the surface to be swabbed is large or low incidence of microbes in the environment.

Stratification of vegetation - qualitative characters, Stratification of Ve...

Stratification of Vegetation - Qualitative Characters Stratification of vegetation is another important feature of plant communities. There are different vertical strata in di

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd