# What are the 8 body systems?

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Nov 17, 2017

The 8 body systems are, circulatory, immune, skeletal, excretory, muscular, endocrine, digestive, nervous and respiratory.

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Why are these systems important?

Why? It's because these systems are essential to life. Without these organs we would not be able to live.

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What is the skeletal system?

The skeletal system protects all major organs in the human body. The skeletal system consists of 206 bones, in a adult. As well, we have a whole network on tendons, and ligaments that connects these bones.

How much bones are in a adult body and how many are in a child's body?

There are 206 bones in a adult human body. There are 270 bones in an infant's body. You might be wondering, Why are there less bones? Adults have less bones, because some of our bones fuse together as we age.

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What is the respiratory system?

The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide.

What are the organs that are in the respiratory system?

The organs that carry out functions are,

• Nose/Mouth

• Trachea (Windpipe)

• Bronchial tubes

• Diaphragm

• Lungs

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This picture shows 6 body systems and their organs

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