The human skeletal system consists of 206 bones that support the body, protect internal organs, and allow for movement via connection to muscles. Bones are connected by ligaments at joints, which can either allow movement or not. The skeleton is divided into the bones of the head, trunk, and extremities. The skull bones protect the brain, while the spinal column, sternum, and ribs make up the trunk. Muscles are composed of cells and attach to bones via tendons to facilitate movement.
3. THE FUNCTIONS OF THE
SKELETON
It supports the body and helps to keep its shape.
It protect the body´s soft, internal organs, like
brain, heart and lungs.
It is connected to muscles that move the different
bones.
4. VOCABULARY
Ligaments: Connect bones to each other.
Muscles: Can stretch and contract.
Bones: The skeleton is made up of bones.
Tendons: Attach muscles to the bones.
5. VOCABULARY
The joint.
Our bones are connected to each other at the joint.
Some joints can move, while other joints can not
move at all.
7. SKELETON
How many bones are there in our body?
It is made of 206 different bones
8. THE HUMAN SKELETON
We can put the bones of the human skeleton into
three
The bones of the head.
The bones of the trunk.
The bones of the extremities
9. THE BONES OF THE HEAD
The bones of the head form the skull or cranium.
These bones protect the brain.
10. THE BONES OF THE TRUNK
Spinal column
Sternum
Ribs
14. QUESTIONS (SPEAKING)
How many bones are there in our body?
Which are the bones of upper extremety?
Which are the bones of lower extremety?
15. ACTIVIY
Classify the following bones into three groups
(head, trunk and extremeties).
Femur
Sternum
Humerus
Ulna
Patella
Rib
Temporal bone
Radious
Occipital bone
fibula
