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THE RESPIRATORY SYSTEM - Contenido educativo
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the respiratory system. The most important function of the respiratory system is to take in oxygen
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and eliminate carbon dioxide. Oxygen enters through the respiratory system when we breathe in.
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Then the carbon dioxide leaves our body when we breathe out. Inhalation, we breathe in oxygen.
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exhalation without carbon dioxide. The respiratory system is made up of the
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nostrils, the trachea, the bronchi and the lungs. The nose has two holes called
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nostrils where the air enters our body. The nose warms the air. The hairs in the
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nostrils clean the air. Oxygen goes down the trachea. The trachea is a tube that
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divides into two smaller tubes called bronchi. The air goes down the bronchi
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into the two lungs. The lungs are two sacs that are protected by our ribs. The
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The lungs are made up of lots of little sacs.
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The air goes into these little sacs.
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These sacs are called alveoli.
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The air goes into these little sacs.
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The oxygen passes from the air into the blood.
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Carbon dioxide passes from the blood into the air.
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Then, the carbon dioxide leaves our body when we breathe out.
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Hey, buddy, you're breathing very quickly.
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Hmm, take a rest.
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Let's learn about breathing and the respiratory system today.
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Humans breathe through something called the respiratory system.
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We breathe in oxygen and breathe out carbon dioxide.
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This process is called respiration.
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Breathing happens automatically, and every day we breathe about 20,000 times.
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Breathing occurs in our respiratory system.
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This includes the nose, throat, voice box, windpipe, and the lungs.
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Let's see the parts and functions.
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The nostrils bring air inside the nose, where it gets warmed and filtered.
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Inside the nostrils, there are cilia that protect the nasal passageways.
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Sometimes air is breathed in through the mouth.
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The two airways of the mouth and nose meet at the pharynx.
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There are two paths, one for food called the esophagus and another for air called trachea.
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We have a leaf-shaped flap of tissue called the epiglottis that keeps food from entering the windpipe and the lungs.
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The larynx or voice box is about 5 cm long, located between the pharynx and the trachea.
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Our vocal cords are found there.
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The windpipe, or trachea, is a tube about 3 centimeters
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extending downwards from the bottom of the larynx for about 12 centimeters.
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The walls of the trachea are covered with stiff rings of cartilage that keep it open.
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It's lined with small hairs that sweeps fluids and foreign particles out of the airways.
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The windpipe divides into two parts, and each of these enters the lungs,
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dividing into tinier branches called the bronchioles.
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They end in alveoli that are tiny air sacs within the lungs
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where the exchange of oxygen and carbon dioxide takes place.
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It's surrounded by capillaries.
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The oxygen passes through these air sacs
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and travels through the walls of capillary into the bloodstream.
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At the same time, carbon dioxide flows from the bloodstream into the air sacs
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where it gets breathed out of the body.
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When we exercise, our body needs more oxygen because the muscles work harder than normal,
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so we breathe more deeply and quickly.
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More capillaries form around the air sacs,
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and due to this, the body gets better at swapping oxygen and carbon dioxide.
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Eating healthy foods and exercising can help keep your respiratory system healthy.
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Now, you know a lot about the respiratory system.
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Please drop a like, leave a comment, share the videos, and don't forget to subscribe.
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Bye-bye.
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- Idioma/s:
- Materias:
- Ciencias
- Niveles educativos:
- ▼ Mostrar / ocultar niveles
- Educación Primaria
- Segundo Ciclo
- Tercer Curso
- Autor/es:
- Isabel de Francisco
- Subido por:
- Isabel De F.
- Licencia:
- Reconocimiento - No comercial - Compartir igual
- Visualizaciones:
- 139
- Fecha:
- 4 de mayo de 2020 - 9:07
- Visibilidad:
- Público
- Enlace Relacionado:
- https://www.youtube.com/watch?v=uyqt7ekkP2E
- Centro:
- CP INF-PRI CARDENAL HERRERA ORIA
- Duración:
- 06′ 21″
- Relación de aspecto:
- 1.78:1
- Resolución:
- 1280x720 píxeles
- Tamaño:
- 77.33 MBytes
