Define breathing mechanism in Human beings?
Posted by Swati Kumari 3 months ago
- 1 answers
In breathing, human beings inhale oxygen and exhale carbon dioxide.During inhalation process, the diaphragm contracts and moves down. The ribcage moves upwards and outwards and expands. This results in increasing the volume of the chest cavity and reduces the pressure inside it as volume is inversely proportional to pressure. When the pressure inside the lungs reduces then During exhalation process, the diaphragm relaxes as it moves up and returns to its normal dome shape. The ribcage also returns to its normal position. This reduces the volume of the chest cavity, which in turn increases the pressure inside it. And thus air is expelled out. In this way, process of breathing takes place in human beings.
Salma takes 15 minutes from her house to reach her school on a bicycle. if the bicycle has a speed of 2m,s calculate the distance between her house and the house
Posted by Hirak Jyoti Brahma 4 days, 17 hours ago
- 2 answers
Matching periodic motin ,non periodic motin,time, pendulum,sundial ,solar day,graph parallel axis to time , zigzag graph
Posted by Himani Rajput 1 day, 18 hours ago
- 0 answers