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Bones and Muscles
Transcript of Bones and Muscles
Every part of
our body has muscles
The muscles that are part of the locomotor system. The locomotor system is what let us move the different parts of our body. It includes
Muscles are attached to
bones by tendoms.
Most of the muscles of the head are in the face.
Some open and close the mouth and the eyes; others are for chewing and speaking. The
helps us chew our food.
muscles (1) are in the neck.
(2) are in the chest.
(3) are between the ribs.
(4) are under the ribcage and under the stomach.
THERE ARE MANY MUSCLES IN THE TRUNK
The deltoid (5) is in the shoulder.
The triceps (6) and the biceps (7) are in the upper arm.
muscle is in our back. It helps us move our arms.
(8) are in the upper leg.
is in the back of the upper leg.
are in the bottom.
We also have the
muscles. These help us walk,run and jump.
They work in
They move our bones by
When muscles contract, they get
, and when they relax, they get
This is how we move the different parts of our bodies.
attach muscles to the bones.
attach bones to bones.
MUSCLES AND BONES ARE ATTACHED BY JOINTS
We have two types of muscles:
. We can move voluntary muscles when we want but we can't control involuntary muscles. Our
is an involuntary muscle. It moves automatically. There are also involuntary muscles in our
that help us to digest our food.
is the head. It protects the brain and gives shape to the face
The trunk has two parts: The Thorax and the Abdomen.
is in the trunk. It protects the
. It is made up of:
At the back: the
. This is made of small bones called
At the front: the
join the backbone and the sternum.
we find the
It is the longest bone in your body
is made up of all the
in our body.
An adult has
hard and rigid.
They are made of
. Calcium can be found in food like
milk, salmon, broccoli, yoghourt and cheese
, so we need a lot of calcium to have strong bones and to grow up.
The skeleton has
The skeleton has two functions: It
our body and it
the delicate organs inside it.
TYPES OF BONES
The bones in our body are all
types of bones:
Vertebrae are short bones
The tibia is a long bone
The bones in the skull are flat.