jueves, 22 de enero de 2015

HUMAN BODY

TYPES OF JOINTS:
Fixed joints: This joints don`t move.
Semi-flexible joints: This joints allow a little movement.
Flexible joints: This joints allow our body to move.
Bones
Bones are hard and rigid they are made up of bones tissue. In our body there are 206 bones. They form our skeleton.
TYPES OF BONES:
Flat bones: Protect our internal organs.
Long bones: Are used for movement.
Short bones: Provide support and stability.
The skeleton
This skeleton`s function is to give shape and support our body and to protect the internal organs.
Muscles
Muscles are made up of muscles fibres and the muscles in our body respond to the nervous system by contracting and relaxing.
TIPES OF MUSCLES
Voluntary muscles: If you want to move them you can move them.
Involuntary muscles: you move them if you want or don`t want.
The nervous system
Definition: receives and respond to information from the five sense organs.
The central nervous system is made up of the brain, spinal cord and the peripheral nervous system which is made up of the nerves.
Central Nervous System
The brain is the control centre of the central nervous system and it`s made up of:
Cerebrum: it`s the biggest part of and control the voluntary movements.
Cerebellum: the cerebellum controls balance, movement and coordination.
Brain stem: the brain stem controls involuntary movement.

SPINAL CORD: The spinal cord it`s made up of nerve tissue and run from our brain down our spine.

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