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

Transcription in prokaryotes, As in several fields of molecular biology stu...

As in several fields of molecular biology studies of E. coli have gives the model for subsequent investigations of transcription in eukaryotic cells. The basic mechanisms by that t

Collenchyma, Collenchyma are one of the three major cell types in the plan...

Collenchyma are one of the three major cell types in the plants; are elongated and have thicker walls than parenchyma cells and are usually arranged in strands; gives support and

How do sponges try to protect themselves, Q. How do sponges try to protect ...

Q. How do sponges try to protect themselves against harm from the environment? Is that method rudimentary or efficient? Sponges can close their pores to avoid the entrance of w

Signify the term - opercular gill, Signify the term - opercular gill. T...

Signify the term - opercular gill. The gill found in bony fish. Operculum is the outer covering of the gill. When it's drawn away from the body, it pulls water inside the bucca

Sources of variability, Mutations and genetic recombination (in sexually re...

Mutations and genetic recombination (in sexually reproducing organisms) are major sources of variations in natural populations, In this section we will briefly mention the various

Determine the pre-conditions for gtt, Pre-conditions for GTT You are ad...

Pre-conditions for GTT You are advised to carry out the GTT (OGTT) test to confirm a diagnosis of diabetes mellitus for a person with: a) The history of glycosuria (glucose

Dietary guidelines fur hyperlipidemic patients, Q. Dietary Guidelines fur h...

Q. Dietary Guidelines fur hyperlipidemic patients? • Calories: to maintain ideal body weight. • Carbohydrates should constitute 55-65% of calories with emphasis on • polysacc

Show the types of oesophagitis conditions, Q. Show the types of oesophagiti...

Q. Show the types of oesophagitis conditions? The two types of oesophagitis conditions: 1. Acute Oesophagitis - It is characterized by substantial pain on swallowing. It is

What are the major harms caused by vitamin a deficiency, Q. What are the ma...

Q. What are the major harms caused by vitamin A deficiency? How does this vitamin act in the physiology of vision? Deficiency of vitamin A (retinol) may corneal dryness (xeroph

What are non-threshold approaches, Non-threshold  approaches For  gene...

Non-threshold  approaches For  genetic carcinogenes, the  "NOEL-safety factor"  approach  is generally  not considered a suitable method for setting the acceptable intake level

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