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

Explain the cori cycle, The  Cori cycle a)  Pyruvate formed from glucos...

The  Cori cycle a)  Pyruvate formed from glucose is converted  to lactate by lactate dehydrogenase in the muscle cell. b)  Lactate is released into  the blood and taken up b

Explain the categories of fats and oils, Categories of Fats and Oils Yo...

Categories of Fats and Oils You already know that fatty acids are the lipid-building blocks. It is customary to divide  the fatty acids into different groups, e.g.,  saturated

What are two specific actions in this, The major ecological imbalance on Ea...

The major ecological imbalance on Earth is between the human species and the rest of Earth's biota. What are two specific actions we could do to achieve a balance (for example, rec

Monosaccharide sugars, Monosaccharide Sugar - carbohydrate consisting o...

Monosaccharide Sugar - carbohydrate consisting of a single sugar unit Have an aldehyde or a ketone group and 2-5 alcohol groups depending of the # of carbons

Different phases of spermatogenesis, DIFFERENT PHASES OF SPERMATOGENESIS ...

DIFFERENT PHASES OF SPERMATOGENESIS Spermatogenesis complete into two phases. 1 .       Spermatocytogenesis The entire process can be divided into three phases : (i

What is retrograde peri-implantitis, Retrograde Peri-Implantitis It has...

Retrograde Peri-Implantitis It has been described by Misch as implant failure probably due to bone microfractures caused by premature implant loading or overloading, other form

Explain post-lyme disease syndrome, Explain Post-lyme disease syndrome  ...

Explain Post-lyme disease syndrome  Some treated patients whose objective manifestations of Lyme disease have resolved with antibiotic treatment report subjective symptoms suc

Name the hormone that makes the plants more tolerant, In humans, starch dig...

In humans, starch digestion begins in the buccal cavity but stops in the Stomach. Why? Name the two most biodiversity-rich zones of India. Name the hormone that makes the p

Toxic agents present in which food, Toxic agents present in food which inte...

Toxic agents present in food which interfere with thyroxine synthesis lead to the development of: 1. toxic goitre 2. cretinism 3. simple goitre 4. thyrotoxicosis si

Indications for surgery- pulmonary stenosis, Indications for Surgery :  Co...

Indications for Surgery :  Congenital pulmonic stenosis is the most common lesion requiring relief. Very rarely it could be due to rheumatic involvement along with disease of othe

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