The Respitory System Flashcards
What is the role of your nasal cavity
When you breathe in, most of the air comes in through your nos, where it is warned and moistened. In your nasal cavity, there are small hairs which filter out large dust particles. Glands, located in your skin produce mucus, which helps the hairs called cilia trap fine particles. The mucus moves into the back of your nose and into the pharynx, where it is then swallowed.
What are cilia
Cilia are tiny hairs in your nose that trap particles of dust and dirt.
They use mucus, produced in glands to help
Where is mucus produced
In glands
What is the pharynx
The pharynx is what mucus passes through when swallowed. It connects your nose to your osophegus
What is the trachea
The trachea is your wind pipe. The thin walls are lined by cartilage, to keep it from caving in when you breathe.
What are bronchi
The trachea divides into two bronchi, which are tubes that pass through the lungs
What are bronchioles
Your bronchi divided into smaller tubes called bronchioles, which are just small tubes
What are alveoli
Alveoli are a cluster of sacks, which the bronchioles lead to.
The air goes into them, where it passes through the 1 cell thick wall into the capillaries,mane into the blood stream.
This is called gas exchange.
How does gas pass through into the blood?
The oxygen passes through the cell wall of the alveoli into the cappillaries
What is diffusion
Diffusion is how the oxygen moves. The oxygen spreads out into areas where there is none, so when deoxygenated blood comes past, it will go into that
Explain how cabin dioxide fits in to this whole situation poopy face
Carbon dioxide is a waste product produced when the cells use the oxygen to produce energy from food.
It passes through the blood back into the lungs, and is then breathed out.
Respiration is
The chemical change that happens in cells to release energy. For humans and many animals, this is done by breathing
