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

Classification of wastes, Wastes are classified into following categories: ...

Wastes are classified into following categories: 1.      Biodegradable wastes: The waste materials that can be degraded by micro-organisms are called biodegradable wastes. Th

What is fontan operation and modifications, What is Fontan Operation and Mo...

What is Fontan Operation and Modifications ? Earlier reported to have 20 per cent mortality, it has come down to five per cent in specialized centres. In the earlier series th

Genetics, Considering a pair of homologous chromosomes containing a gene ha...

Considering a pair of homologous chromosomes containing a gene having two different alleles how many different genotypes can the individual present?

Five kingdom classification, discuss the merits nd demerits of five kingdom...

discuss the merits nd demerits of five kingdom classification.

What is phenotypic ratio, The F2 phenotypic ratio from a dihybrid cross wit...

The F2 phenotypic ratio from a dihybrid cross with epistasis was 9:3:4. If instead of a dihybrid cross, a double heterozygote was test crossed (crossed to a homozygous recessive in

What is a population, What is a population? A population is a set of in...

What is a population? A population is a set of individuals of the similar species found in a given place in a given time.

Define absorption, Define Absorption, Storage and Elimination of cyanocobal...

Define Absorption, Storage and Elimination of cyanocobalamin? Vitamin B 12 in food is bound to proteins and is only released by the action of a high 'Concentration of hydroch

Estimation of protein by carcass nitrogen analysis method, Define Estimatio...

Define Estimation of protein by Carcass nitrogen analysis method? Carcass nitrogen analysis: This method includes Nitrogen retention method Net protein utilization

Transport of substances done across the bryophyte tissue, How is the transp...

How is the transport of substances done across the bryophyte tissues? How is this feature related to the general size of these plants? In bryophytes there are no water-conduct

What are cytochromes, What are cytochromes? Cytochromes are proteins of...

What are cytochromes? Cytochromes are proteins of the internal mitochondrial membrane that are specialized in electron transfer and participate in the respiratory chain. Energi

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