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

Common disease of sheep, COMMON DISEASE OF SHEEP - 1 .       ANTHRAX ...

COMMON DISEASE OF SHEEP - 1 .       ANTHRAX - Persons working in wool factories may get infection by breathing. 2 .       BLACK QURTER 3 .       HAEMORRHAGIC S

How does the heart impel the blood, Q. How does the heart impel the blood? ...

Q. How does the heart impel the blood? The heart is a muscular organ that contains chambers right ventricle and right atrium right ventricle and and left atrium through which b

Conditions necessary for outbreak of botulism, Q. Conditions Necessary for ...

Q. Conditions Necessary for outbreak of botulism? The following conditions are necessary for an outbreak of botulism: 1. Presence of spores of C. botulinum of type A, B o

Megasporogenesis, Megasporogenesis One of the nucellar cells situ...

Megasporogenesis One of the nucellar cells situated subjacent to the epidermis differentiates into the primary archesporial cell. This cell is larger than the adjacent ce

Zoology, why protozoass dont have vaccines esp. plasmodiums

why protozoass dont have vaccines esp. plasmodiums

Riccia, What isthe Riccia

What isthe Riccia

Theory of natural selection or darwinism, THEORY OF NATURAL SELECTION OR DA...

THEORY OF NATURAL SELECTION OR DARWINISM Theory of CharIes Darwin (1809 - 1882) about evolution marks the beginning of an era in understanding of evolution. At the age

Examining regulated health professions, In a comparative study you are exam...

In a comparative study you are examining two items, two scenarios, for Introduction to Professionalism you will be Examining two Regulated Health Professions. One will be the Colle

Vitellogenesis, Vitellogenesis Vitellogenesis is the stage where much ...

Vitellogenesis Vitellogenesis is the stage where much of the oocyte growth occurs. The completion of second maturation division (meiosis), which may occur after ovulation, res

Mollusca, commercially important bivalve species

commercially important bivalve 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