Latest / Borscience 4 / 2. Respiratory system (Unit 1)

Transcript

2. Respiratory system (Unit 1) · Borscience 4

• 0:09
  Speaker 1: Welcome to this World Science.
• 0:13
  Speaker 2: Today we talk about the respiratory system.
• 0:20
  Speaker 3: It includes the nose, mouth, trachea, bronchi, lungs, Diaphora.
• 0:31
  Speaker 2: Alveoli.
• 0:34
  Speaker 4: The steps we breathe are through our nose and mouth.
• 0:40
  Speaker 1: The air goes down the trachea. Then it goes into
• 0:48
  Speaker 1: tubes called bronchi. The bronchi takes the air into our lungs.
• 0:59
  Speaker 4: The diaphragm is a muscle under the lungs. It helps
• 1:04
  Speaker 4: us breathe in and breathe out.
• 1:09
  Speaker 2: The alveoli give oxygen to the blood and take CO2
• 1:16
  Speaker 2: from the blood. We read O, D, C, O, 2, 3, R,
• 1:38
  Speaker 2: O for nose and mouth. This is called gas exchange.
• 1:45
  Speaker 2: See you in the next episode. Bye!