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
Define the Importance of Zinc in Humans? Zinc deficiency in humans was reported by A.S. Prasad among people consuming mostly breads and very little animal protein in Middle Eas

Define Blank titration for Determination of the Iodine Number of Lipids? Using an autopipette, measure 25 ml of Hanus iodine reagent accurately and transfer into a 250 ml iodin

Plants and animals The activity of living organisms like lichens, fungi, bacteria, blue green algae, bryophytes is also responsible for weathering.  It is referred to as biolog

What is the formula for photosynthesis? H 2 O + 6CO 2 + Light Energy ----> C 6 H 12 O6+ 6O 2 6 molecules of water + 6 molecules of carbon dioxide --->1 molecule of glucose

Q. In which period of meiosis does the pairing of homologous chromosomes occur? The pairing of homologous chromosomes is a very important step for meiosis because the rightness

What are synthetic auxins and what are their uses? Synthetic auxins, like indolebutyric acid (IBA) and naphthalenic acid (NAA) are substances same to IAA (a natural auxin) but

Explain metachrosis in frogs? How it is different from change of skin colour of chemleon?

Define Management and Nutritional Intervention using MNA - Undernutrition? A. For those categorized as well-nourished They need only be reminded of the importance

For measuring the rate of transpiration of a twig using Ganong's potometer, learner A cuts the twig and fits it in the broad end of the water-filled potometer. Learner B cuts the t

Determine the importance of Educational History- assessment  A complete school history includes information regarding a child's current grade placement, any grade repetitions o