Describe respiratory system of Human body

The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.

The respiratory system has many functions. Besides helping you inhale (breathe in) and exhale (breathe out), it:

• Allows you to talk and to smell.
• Warms air to match your body temperature and moisturizes it to the humidity level your body needs.
• Delivers oxygen to the cells in your body.
• Removes waste gases, including carbon dioxide, from the body when you exhale.
• Protects your airways from harmful substances and irritants.

The respiratory system has many different parts that work together to help you breathe. Each group of parts has many separate components.

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