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

Types of aortic stenosis-aortic stenosis-valve disease, Types of Aortic Ste...

Types of Aortic Stenosis:  Obstruction to left ventricular outflow is commonly at the valvar level. Less commonly it is at the sub valvar or supra valvar level. Sub valvar ob

Define key concepts and facts of polysaccharides, Define Key Concepts and F...

Define Key Concepts and Facts of Polysaccharides? 1. All polysaccharides contain several monosaccharide units. 2. All monosaccharide units are joined to each other by glycosidi

What is the function of the plant cell wall, Q. What is the function of the...

Q. What is the function of the plant cell wall? The plant cell wall has protective and structural functions. It plays an significant role in the constraint of the cell size, pr

Explain dough formation, Explain Dough Formation   Gluten is the prote...

Explain Dough Formation   Gluten is the protein found in wheat. A unique property of gluten proteins of wheat grain endosperm (and  to  a   lesser extent of rye and  barley  g

Define gray matter and white matter of the spinal cord, Q. What are the res...

Q. What are the respective constituents of the gray matter and of the white matter of the spinal cord? The gray matter or gray substance of the spinal cord contains predominant

Illustrate in detail about the cell theory, Illustrate in detail about the ...

Illustrate in detail about the Cell theory All living organisms are composed of cells, and they are the basic structural and functional units of life, just like the atom is a

Explain the principle of microscopy, Explain the Principle of Microscopy? ...

Explain the Principle of Microscopy? When the light passes from one medium to another, refraction occurs, i.e., the ray is bent at the interface. The direction and the magnitud

Microorganisms acquired during transport of raw food, Microorganisms Acquir...

Microorganisms Acquired During Transport, Handling and Processing of Raw Foods Microorganisms can come from truck, tanker, food handlers and equipment and utensils used in the

Which does not support evolution, Which of the following does not support e...

Which of the following does not support evolution? biogeography the fossil record comparative anatomy radiometric dating All of these choices are evidence of/support evolution.

Determine uses of soybean protein, Determine uses of Soybean protein? S...

Determine uses of Soybean protein? Soybean protein concentrates have been used as stabilized dispersions in milk- like beverages and simulated dairy products, such as sour crea

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