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

Porth''s pathophysiology, Which of the following patients will likely exper...

Which of the following patients will likely experience difficulty in maintaining lipoprotein synthesis resulting in elevated LDL levels? A physician is explaining to a group of med

Microtubule assembly, Microtubule assembly: A) generally originates in the ...

Microtubule assembly: A) generally originates in the centrosome. B) occurs only during mitosis. C) occurs randomly throughout the cell. D) is regulated by myosin. E) is inhibited d

Thorax and lungs, Thorax and Lungs: The  lungs, a pair of conical-shap...

Thorax and Lungs: The  lungs, a pair of conical-shaped organs lie  in  the  thoracic cavity, protected by the bony  thorax composed of the  sternum and ribs a interiorly and r

Decay and nutrient cycling, Decay and Nutrient Cycling Soil organisms a...

Decay and Nutrient Cycling Soil organisms are the chief agents of decay of organic matter. Decomposition and mineralisation of organic matter results in release of inorganic nu

Active listening - counselling skills used in diabetes, Q. Active Listening...

Q. Active Listening - counselling skills used in diabetes? Every day we listen to many things, may be not with any intention or paying attention to the words, speech etc. For i

Explain surgery process for head and neck tumor, Define Surgery Process for...

Define Surgery Process for Head and Neck Tumor? Treatment mostly involves combination of surgery and radiation. Chemotherapy is also used in some cases, we will learn about the

Define preoperative nutritional care during surgery, Define Preoperative Nu...

Define Preoperative Nutritional Care during Surgery? It can be provided only to prospective candidates of elective surgery and is not feasible for emergency cases. Preoperative

Define echocardiography, Q. What is Echocardiography in pericardial disease...

Q. What is Echocardiography in pericardial diseases? Ans. One of the earliest clinical applications of echocardiography was in the detection of pericardial effusion and it rema

What do you mean by polyphagia, Q. What do you mean by Polyphagia? Incr...

Q. What do you mean by Polyphagia? Increased Hunger (Polyphagia): As patient is losing more sugar in the urine, he feels hungry very soon and tends to take more food. It is cal

Find out surface area, If given this in this sequence to find surface area,...

If given this in this sequence to find surface area, 1 cm x 2 cm x 2 cm block, am I to assume it is written in LxWxH format? I actually think the length is 2 though and the width i

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