nostril->nasopharynx-> oropharynx->glottis-> trachea-> left and right bronchi-> bronchioles->alveoli (where gas exchange occurs)
trachea (windpipe)
trachea
nostril->nasopharynx-> oropharynx->glottis-> trachea-> left and right bronchi-> bronchioles->alveoli (where gas exchange occurs)
Matter has weight and takes up space. You know that air takes up space, because when you breath in, your lungs fill with air and expand. :) MoMMy.!
The average human normally takes in about 35 lbs of air per day.
In the absence of air and neglecting the Earth's curvature, the path would be part of a perfect parabola.
No. It is more instinctive for to breath through our noses because where far more air can get from the harmful substances in the air that us. Plus it takes less effort than breathing through your mouth
Matter has weight and takes up space. You know that air takes up space, because when you breath in, your lungs fill with air and expand. :) MoMMy.!
A collective noun for air is a breath of air.
This is a ventilation system question. The return air path is the route (usually through ducting but could be through some other route such as a window or vent) that the air takes. Typically a building ventilation system would have both supply and extract systems. The return air path is this.
spirometry
Its breath of fresh air.