in every breath how much air is taken in?
2006-07-31 20:53:05 · 8 answers · asked by shubhangi j 1 in Science & Mathematics ➔ Biology
The average pair of human lungs can hold about 6 litres of air, but only a small amount of this capacity is used during normal breathing. Lung volumes refer to physical differences in volume, while lung capacities represent different combinations of lung volumes, usually in relation to inspiration and exhalation. These values vary with the age and height of the person; the values that follow are for a 70 kg, average-sized adult male:
Total lung capacity (TLC) = 6 L. The volume of gas contained in the lung at the end of maximal inspiration.
Vital capacity (VC) = 4.8 L. The amount of air that can be forced out of the lungs after a maximal inspiration.
Tidal volume (TV) = 500 mL. The amount of air breathed in or out during normal respiration.
Residual volume (RV) = 1.2 L. The amount of air left in the lungs after a maximal exhalation.
Expiratory reserve volume (ERV) = 1.2 L. The amount of additional air that can be breathed out after normal expiration. (At the end of normal a breath, the lungs contain the residual volume plus the expiratory reserve volume, or around 2.4 liters. If one then goes on and exhales as much as possible, only the residual volume of 1.2 liters remains).
Inspiratory reserve volume (IRV) = 3.6 L. The additional air that can be inhaled after a normal tidal breath in.
Functional residual capacity (ERV + RV) = 2.4 L. The amount of air left in the lungs after a tidal breath out.
Inspiratory capacity (IC) = is the volume that can be inhaled after a tidal breath out.
Anatomical dead volume (or dead space) = 150 mL. The volume of the conducting airways.
2006-07-31 20:56:20 · answer #1 · answered by GVD 5 · 0⤊ 0⤋
about 400 ml per breath, but if u inhale forcefully it would reach 1500 ml
2006-08-01 03:58:36 · answer #2 · answered by Moon_light1985 2 · 0⤊ 0⤋
This site has neat graphs that show different inhales under different circumstances.
http://www.arb.ca.gov/research/resnotes/notes/94-11.htm
Steph
2006-08-01 04:08:57 · answer #3 · answered by STEPHEEDEE 4 · 0⤊ 0⤋
well ive hit a four litre G bong so id say 4 litres or more
2006-08-01 03:58:37 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Depends on how large your lungs are.
2006-08-01 03:55:44 · answer #5 · answered by Anonymous · 0⤊ 0⤋
.5 liters
2006-08-01 03:55:07 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It depends on how old you are, how fit you are, if you smoke
2006-08-01 03:58:42 · answer #7 · answered by female_lizzzzzard 3 · 0⤊ 0⤋
depends on your lungs
2006-08-01 03:56:20 · answer #8 · answered by double v 5 · 0⤊ 0⤋