Download - Unit 1 skeleton, joints and muscles
Transcript
SKELETON, JOINTS AND MUSCLES
THIS IS MY SKELETON
The skeleton has 206 bones.
head
torso
limbs
The skeleton has 3 parts: skull, torso
and the limbs.
The skeleton has 2 functions:
It supports our body.It protects the delicate
organs inside our body.
Our bones are connected at joints.
JOINTS
Our elbows, knees, shoulders, wrists and ankles are all joints.
There are 600 muscles in our body.
THERE ARE 2 TYPES OF MUSCLES
voluntary involuntary
1. We can move voluntary muscles when we want.
2. We can’t control involuntary muscles: they move automatically.
Muscles relax and contract.