1.
4º PRIMARY
THE MUSCULOSKELETAL
SYSTEM

2.
THE SENSES

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.

6.
VOCABULARY

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

11.
THE BONES OF THE UPPER
EXTREMETY

12.
THE BONES OF LOWER
EXTREMITIES

13.
VOCABULARY
 MUSCLES
The muscles are made of many muscle cells.

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

16.
JOURNAL
 What have you learnt?
 How do you feel today?