Breathing or ventilation, Biology

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.
Posted Date: 10/1/2012 8:58:29 AM | Location : United States







Related Discussions:- Breathing or ventilation, Assignment Help, Ask Question on Breathing or ventilation, Get Answer, Expert's Help, Breathing or ventilation Discussions

Write discussion on Breathing or ventilation
Your posts are moderated
Related Questions
Which are specialized conductive tissues of the plants? Vascular tissues of the plants are the phloem and the xylem. The Xylem is the plant tissue that forms the vessels that c

Define the Meaning of Goitrogens? Goitrogens are substances that interfere with iodide metabolism in any way that inhibits thyroid hormone synthesis. As a result, there is augm

This is a broadly used screening technique that find several genomic mutations in wide number of samples, this technique finds sequence variations because of point mutations or oth

Topical Route The medication in topical route is administered through ear, nose and eye. Drops are instilled into the nose, ear and eyes of the child in much the same way

Pathophysiology Infective endocarditis occurs when turbulence within the heart allows causative organism to infect previously damaged valves or other endothelial surfaces.

Explain detail about the Golgi Bodies Eukaryotic cells possess, within the cytoplasm, a complex organisation of a cluster of membrane-surrounded vesicles called the Golgi bodie

Describe the terms diffusion, osmosis and filtration. Explain why each process is important for the human body.


Explain Spread Plate Method - Pure Culture Techniques? In this method, diluted microbial suspension containing about 30 to 300 colonies is spread uniformly on the agar surface

Explain Terbinafine Terbinafine (Lamisil)  -  Terbinafine is a synthetic allylamine approved by the FDA for treatment of onychomycosis of the toenail or fingernail due to derm