VENTILATION by Ruby Wang https://padlet.com/ruby_lixuan/xz8s7zjgqncc Made by Ruby ♥ en-us 2017-03-20 02:45:29 UTC 2025-10-07 14:07:17 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/File.png What is inspiration? ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161451514 Inspiration  (also called inhalationis) is the flow of air into the lungs, accomplished in mammals by the flattening and contraction of the diaphragm.]]> 2017-03-21 11:49:23 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161451514 Respiratory system ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161691501 Source:
Boundless, ( 07 Nov. 2016.) Inspiration, https://www.boundless.com/physiology/textbooks/boundless-anatomy-and-physiology-textbook/respiratory-system-22/mechanics-of-breathing-208/inspiration-1023-395/]]> 2017-03-22 01:23:46 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161691501 The process of inspiration (breath in) ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161696294
  • For human body, inspiration is the flow of air into an organism from the external environment.
  • The air will goes through trachea, and into the alveoli.
  • Inspiration begins with the contraction of the diaphragm, this movement cause the expansion of chest cavity. It usually has a lower pressure compared to atmoshperic air. But the diaphragm contracts and enables the chest cavity to occupy a larger volume.
  • Besides, pressure and volume are inversely related to each other. Therefore, the air pressure will decreasing in lungs and atmospheric air becoming greater.


    • Source of picture:
    Wikispaces (p. d.) SBI3C respiratory system, https://bio3c.wikispaces.com/cecilia
    ]]>     2017-03-22 02:07:30 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161696294     The process of expiration (breath out) ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161696378
  • Expiration begins with the inspiration ends.
  • The chest cavity will contract during the expiration, due to relaxation of the diaphragm.
  • Then the air pressure in the lungs increase  leads to a decrease in volume inside the lung.
  • Air is pushed out into the airways as the lung returns to its smaller size. 
  • Then the air is forced to moves through nose and mouth.

    • Source of picture:
    Wikispaces (p. d.) SBI3C respiratory system, https://bio3c.wikispaces.com/cecilia
    ]]>     2017-03-22 02:08:14 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161696378     What is expiration? ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161710841 Expiration ( also called exhalationis) the flow of the respiratory current out of the organism.]]> 2017-03-22 05:26:54 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161710841 Accessory muscles of inspiration ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161779743 External intercostal muscles located between the ribs, it contracts during the inspiration breathing which help to pulling the ribs upwards and outwards. Internal intercostal muscles relax in this process.

    ]]>     2017-03-22 12:14:11 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/161779743     Accessory muscles of expiration ruby_lixuan https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/162076607 In the expiration, external intercostal muscles will relax and permitting ribcage to move downwards. Internal intercostal muscles will contracts and decreasing the volume of thorax.

    ]]>     2017-03-23 11:10:00 UTC https://padlet.com/ruby_lixuan/xz8s7zjgqncc/wish/162076607