Residual volume - respiration, Biology

Residual Volume - Respiration

No matter how hard one may try, the lungs are never empty of air; there is still 1650 cm3 of air left in it. This is known as residual volume. During inhalation, 350 (500-150) cm3 of fresh air enters and this mixes with the 1650 cm3 of air already in the lungs. The renewal of air is only one part in five. Therefore, the lungs have a constant composition of 15% oxygen and 5% carbon dioxide. This remains same even during exercise as increased ventilation during exercise supplies the extra oxygen requirements of the body.

Posted Date: 1/15/2013 7:11:40 AM | Location : United States







Related Discussions:- Residual volume - respiration, Assignment Help, Ask Question on Residual volume - respiration, Get Answer, Expert's Help, Residual volume - respiration Discussions

Write discussion on Residual volume - respiration
Your posts are moderated
Related Questions
Properties of Phytochrome Phytochrome is a chromoprotein: this means it is composed of a protein and a chromophore. The chromophore is actually attached to the protein and is

Q. What are the main bryophyte groups? The major bryophyte groups are the mosses, the hornworts and the liverworts.

What are allosteric enzymes? Allosteric regulators can be allosteric inhibitors or allosteric activators. The interaction among an allosteric enzyme and the allosteric inhibito

Define Precautions for Determination of Haemoglobin Content in Blood 1. Potassium cyanide is highly toxic and hence drabkin's solution should not be pippeted by mouth. 2. Dr

Q How many germ layers originate the body of platyhelminthes? In relation to this characteristic how are these animals classified? Platyhelminthes are the first triploblastic a

Define Mechanisms for Provide protection against colon cancer? Several plausable mechanisms have been formulated by which fibre may provide protection against colon cancer. The

advantages and disadvantages of protozoa

How does the swim bladder of fishes work allowing fishes to control their depth under water? From Hydrostatics it is called that an object does not sink if its density is equal

Prevention of flap dehiscence Flap margin dehiscence (separation) is prevented by approximating the edges of the flap over healthy bone by handling the edges of the flap gently

Q. Patient care plan for hypertensives? - Lifestyle changes: Avoiding smoking, use of tobacco, and excess alcohol intake Physical activity like walking, 4 times a week or 40 mi