https://padlet.com/1207497902/7udqj1bp0d54 explanation of human ventilation en-us 2017-03-23 09:31:36 UTC 2023-01-25 06:02:37 UTC hello@padlet.com 1207497902 https://padlet.com/1207497902/7udqj1bp0d54/wish/162065051 1. The external intercostal muscles contract and the internal intercostals muscles relax, raising the ribs upwards and outwards.
2. The diaphragm contracts and flattens.
3.Both of these actions increase the volume inside the thorax, causing the pressure inside the thorax to decrease.
4.Since atmospheric pressure is greater, air moves into the lungs from: nose and month>trachea>bronchi>bronchiole>alveoli
5.Finally, oxygen molecules from the alveoli diffuse into the red blood cells and combine with haemoglobin.

]]> 2017-03-23 10:11:55 UTC https://padlet.com/1207497902/7udqj1bp0d54/wish/162065051 1207497902 https://padlet.com/1207497902/7udqj1bp0d54/wish/162067950 1The internal intercostal muscles contract and the external intercostal muscles relax.
2. This lowers the ribs downwards and inwards.
3. The muscle in the diaphragm relaxes and it bulges up due to pressure from the organ below, for example the liver and stomach, and contraction of the abdominal muscles.
4. Both of the these actions decrease the volume inside the thorax, causing the pressure inside the thorax to increase.
5. Elastic recoil of the alveoli helps to force air out of the lungs.]]> 2017-03-23 10:26:45 UTC https://padlet.com/1207497902/7udqj1bp0d54/wish/162067950 1207497902 https://padlet.com/1207497902/7udqj1bp0d54/wish/162083859 2017-03-23 11:42:31 UTC https://padlet.com/1207497902/7udqj1bp0d54/wish/162083859 1207497902 https://padlet.com/1207497902/7udqj1bp0d54/wish/162084234 2017-03-23 11:43:55 UTC https://padlet.com/1207497902/7udqj1bp0d54/wish/162084234 1207497902 https://padlet.com/1207497902/7udqj1bp0d54/wish/162085718 what happens when Ventilation occurs in a human ？]]> 2017-03-23 11:49:34 UTC https://padlet.com/1207497902/7udqj1bp0d54/wish/162085718