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Pulmonary ventilation - Contenido educativo
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Good morning, in this video we are going to study the respiratory system physiology and we will start this physiology with the pulmonary ventilation.
00:00:01
The pulmonary ventilation presents two steps, the inhalation process and the exhalation one.
00:00:14
In inhalation, we take oxygen and reach air from our environment.
00:00:21
And in the exhalation, we expulse the carbon dioxide and reach air from our lungs.
00:00:27
Remember that this carbon dioxide proceeds from our mitochondria.
00:00:34
In this cellular compartment, the cellular respiration takes place.
00:00:43
taking oxygen and releasing energy and carbon dioxide. This carbon
00:00:51
dioxide goes to the blood and this blood transports the carbon dioxide to the
00:00:58
to the lungs. In this slide we are going to see the organs involved in the
00:01:08
pulmonary ventilation and the mechanisms okay the mechanism that that explain the
00:01:16
the the whole the whole process in the the first thing you have to know is that
00:01:26
the the lungs do not have muscles by themselves so they cannot move they need
00:01:33
another muscles to take the oxygen and release the carbon dioxide these muscles
00:01:42
are the basically the intercostal muscles okay which are located between
00:01:49
the ribs and the diaphragm which is located below the thoracic thoracic area
00:01:56
below the lungs. So in the inhalation, what happens is that the intercostal muscles contract
00:02:06
and dries the ribs. So the thoracic box, the thoracic cavity displays
00:02:22
in this direction. On the other hand the diaphragm also
00:02:36
contracts and goes down okay so if you if you see the arrows what happens is
00:02:46
the the volume of this thoracic cavity increases okay so the air can enter what
00:02:54
happened in the in the exhalation in the exhalation happens the opposite than in
00:03:03
the inhalation the intercostal muscle the intercostal muscles relax okay so
00:03:10
goes in this direction to the inner side and the diaphragm relax also and goes up
00:03:18
the result is that the volume of this thoracic cavity decreases
00:03:30
and the air can goes out and that's it so if you have any question just write
00:03:48
me and we can we can see it
00:03:57
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- Idioma/s:
- Autor/es:
- José M Ramos
- Subido por:
- Jose Manuel R.
- Licencia:
- Reconocimiento - No comercial - Compartir igual
- Visualizaciones:
- 153
- Fecha:
- 18 de enero de 2021 - 12:16
- Visibilidad:
- Público
- Centro:
- IES MARIE CURIE Loeches
- Duración:
- 04′ 04″
- Relación de aspecto:
- 16:10 El estándar usado por los portátiles de 15,4" y algunos otros, es ancho como el 16:9.
- Resolución:
- 768x480 píxeles
- Tamaño:
- 8.37 MBytes
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