bones, muscles, joints, and coordinaton!. bones! what are the three functions of bones? –support...
TRANSCRIPT
Bones, Muscles, Joints, and Coordinaton!
Bones!
• What are the three functions of bones?
–Support
–Movement
–Protection
Bones!
• There are about…..
206bones in the human body!
Bones Throughout Life
Bones in the skull FUSE or GROW TOGETHER as you grow to protect the brain, eyes, and inner ears.
Bones get WEAKER as we get older.
Joints!
What is a joint?
The place where two bones meet and bend!
There are 3 kinds of joints….
Can you name all 3?
1. Hinge 2. Gliding 3. Ball and Socket
Joints!
Hinge Joints…
move in 1 direction (open/close)
Examples:
• Knee
• Fingers
• Toes
• Elbow
Gliding Joints
Gliding joints….
move in 2 directions
Examples: Spine
Wrist
Ankle
Ball and Socket Joints
Ball and Socket Joints….move 3 different ways…..
• Forward/Backwards• Sideways• Rotates
Examples: Shoulder
Hip
Muscles!
Muscles power all movement.
Muscles CONTRACT or SHORTEN to
PULL bones, making them move.
Our Amazing Thumbs!
Our thumbs are……
opposable
Coordination!
How does our body send messages or signals?
What are the 3 steps?
Coordination
FirstThere is a STIMULUS
that we sense through
one of our senses
or a thought.
Coordination
SecondA message is sent to
the BRAIN and the
BRAIN decides what
to do.
Coordination
ThirdThe brain sends a
message to the body
And tells it how to
RESPOND.