Residual volume - respiration, Biology

Assignment Help:

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.


Related Discussions:- Residual volume - respiration

Illustrate maintenance of high levels of dissolved solutes, Which of the fo...

Which of the following processes assist in the maintenance of high levels of dissolved solutes in the interstitial spaces of the kidney medulla? A. Net flux of sodium ions from

Determine environmental factors of viscosity and plasticity, Environmental ...

Environmental factors of viscosity and plasticity a) Temperature affects the viscosity of a colloid. Generally, its viscosity decreases as the temperature increases. For e.g.

What happens to the dna molecule when the ends, Now try to pull the strands...

Now try to pull the strands apart at the "origin of replication." What happens to the DNA molecule when the ends are restricted

Explain isozymes, ISOZYMES Sometimes an  enzyme present  in  the  same ...

ISOZYMES Sometimes an  enzyme present  in  the  same  organism is  found  to  have different molecular forms but  catalyzing the  same  reaction. These are called  isozymes. Th

Mitral flow velotity, The normal flow pattern cross-mitral valve is a tall...

The normal flow pattern cross-mitral valve is a tall E wave where is due to early rapid filling and small A-wave which is due to atrial contraction. E/A ratio >1. Pulmonary

Growth rate in animals, GROWTH RATE IN ANIMALS - Growth rate is differe...

GROWTH RATE IN ANIMALS - Growth rate is different at different periods of life. Growth period in human may be studied in 5 steps - (i) Prenatal - In gestation period fo

Do sea urchins have teeth, Do sea urchins have teeth? Sea urchins have ...

Do sea urchins have teeth? Sea urchins have a teeth-like structure juxtaposed to the mouth and made of five teeth linked to ossicles and muscle fibers. This structure, called a

The wall of left ventricle of an infants heart, Because of developmental ab...

Because of developmental abnormality, the wall of left ventricle of an infant's heart is as thin as that of right ventricle. What would be its explicit effect on circulation of blo

Define viscosity - property of agar, Viscosity The viscosity at tempera...

Viscosity The viscosity at temperatures above its gelation point is relatively constant  at pH values of 4.5  to 9.0 and is not greatly affected by age or ionic strength within

Principles of nursing care, 1. Discuss how nursing has changed over the las...

1. Discuss how nursing has changed over the last two (2) decades. 2. Review and summarise the philosophy of your enrolled nurse course and its relevance to your clinical practic

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