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

Haemodynamic study of constrictive pericarditis, Q. Haemodynamic Study of c...

Q. Haemodynamic Study of constrictive pericarditis? Simultaneous right and left heart studies are useful. Due to exaggerated waves in atria, W-shaped atrial pressure tracing wi

If cell itself was hypertonic to the solution, What would happen to a cell ...

What would happen to a cell if it was placed into a hypertonic solution? Into a hypotonic solution? What would happen to a cell if the cell itself was hypertonic to the solution?

Define titrimetric estimation of carbohydrates, Define Titrimetric Estimati...

Define Titrimetric Estimation of Carbohydrates? The Fehling's Soxhlet method is the commonly used method for titrimetric estimation of carbohydrates. In the following section y

Structure of golgi body, STRUCTURE Golgi body consists of :- (1 ) ...

STRUCTURE Golgi body consists of :- (1 ) Cisternae These are plate like unbranched structure with dilated ends. One golgi body has 4-8 cisternae. Mono cisternal

Define causes of vitamin a deficiency - inadequate diet, Define Causes of V...

Define Causes of Vitamin A Deficiency - Inadequate diet? A child is born with poor stores of vitamins and minerals due to maternal malnutrition. Diets of pregnant women are def

#green algae, #what characteristics of green algae that led to biologists c...

#what characteristics of green algae that led to biologists considered it as a plant?

Energy absorbed by plants to be used in photosynthesis, Q. What is the path...

Q. What is the path followed by the energy absorbed by plants to be used in photosynthesis? The energy source of photosynthesis is the sun, the central and unique star of our p

Bioenergetics, Energy Cycle  of Living Being Source of energy :All  mat...

Energy Cycle  of Living Being Source of energy :All  matter  locks  energy in the  from of   bonds  between component  molecules and   atoms. This  energy is the chemical  ener

Explain rodent control and pests, Q. Explain Rodent Control and pests? ...

Q. Explain Rodent Control and pests? In any food establishment, varieties of insects, pests and rodents pose a big threat to the maintenance of hygienic surroundings. They

Explain brefiely the chemical equations, Explain brefiely the chemical equa...

Explain brefiely the chemical equations? Chemical Equations :  A chemical equation is a shorthand way of describing a chemical reaction. For example, in the formation of wate

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