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How does breathing sustain life? (vertebrate breathing)

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Subido el 12 de julio de 2018 por Helena H.

81 visualizaciones

Guillermo Polo Esteban, Francisca Ariza Soria, Leticia Carrero Rial, Helena Herreras Collantes

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Today we are going to talk about how vertebrate animals breathe. 00:00:00
Breathing is an exchange of two gases, oxygen and carbon dioxide. 00:00:07
It means taking in oxygen and expelling carbon dioxide. 00:00:12
Fish take in oxygen from water that enters through the mouth and leaves through the gills. 00:00:17
The exchange of gases happens through the capillaries that fish have in the gills. 00:00:23
Birds get oxygen from the air. They have lungs where there are alveoli with capillaries. 00:00:28
Reptiles taking oxygen from the air. They use lungs to take the oxygen. 00:00:42
The exchange of gases happens in the alveoli. 00:00:48
Mammals taking oxygen from the air. Air passes into the lungs. 00:00:53
Through the capillaries there are in the alveoli in the lungs the exchange of gases happens. 00:00:58
Young amphibians use gills. They take in oxygen from water because they are apoptic. 00:01:04
During metamorphosis, when the young amphibian turns into an adult, gills close and lungs are developed. 00:01:15
Adult amphibians use their lungs and moist skin to breathe. 00:01:23
Subido por:
Helena H.
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
81
Fecha:
12 de julio de 2018 - 16:32
Visibilidad:
Público
Centro:
CP INF-PRI BEATRIZ GALINDO
Duración:
01′ 32″
Relación de aspecto:
1.78:1
Resolución:
960x540 píxeles
Tamaño:
13.83 MBytes

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