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

Define interaction of niacin with other nutrients, Define Interaction of ...

Define Interaction of niacin with other Nutrients? You may recall reading earlier that trypotophan present in dietary proteins is converted to niacin. There is an interdepend

What are the clinical warning signs of implant failure, Clinical warning si...

Clinical warning signs of implant failure The clinical signs of implant failure are: 1) Connecting Screw loosening. 2) Connecting Screw failure. 3) Gingival bleeding a

Hemocytometer, A device called a hemocytometer is often used to estimate th...

A device called a hemocytometer is often used to estimate the number of cells in a culture. Cells are suspended in fluid. A small volume of the fluid is placed into a special chamb

Show the circulatory system present in arthropods, Q. What is the kind of c...

Q. What is the kind of circulatory system present in arthropods? Do these animals have respiratory pigments and heart? In arthropods the respiratory system is open (lacunar). B

Stress of hospitalization, STRESS OF HOSPITALIZATION   Stress refers to...

STRESS OF HOSPITALIZATION   Stress refers to the imbalance between the environmental  and societal demands and the child's coping abilities  and resources that puts  them in a

Name, what''s you''re name

what''s you''re name

Define precautions for testing quality of water, Define Precautions for Tes...

Define Precautions for Testing Quality of Water? 1. Handle the sewage water with care as it may contain enteric pathogens. 2. Sewage and pond water should be shaked before i

Define the clinical manifestations of underweight, Define the Clinical Mani...

Define the Clinical Manifestations of Underweight? Underweight may predispose to fatigue, lethargy and breathlessness. Iron-deficiency anaemia is usually seen because the diet

Explain the phase contrast microscope, Explain the Phase Contrast Microscop...

Explain the Phase Contrast Microscop? Unpigmented and unstained living cells can be easily observed by phase contrast microscope. It has a special objective and a condenser th

Define the term- new life for ancient dna, Based on your reading of the art...

Based on your reading of the article "New Life for Ancient DNA" which of the following is a  false statement in regards to the comparison among genes in extinct and living species?

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