During this term we are  going to start to study the vital function of Nutrition. Many body systems work for it. Let's go to see them.

                                          video 1 

video 2


Digestion is the process that enables us to obtain nutrients from the food we eat.

The digestive system is a long tube that starts in the mouth and ends in the anus

Other organs
 are the stomach, the small intestine and

the large intestine


The respiratory system is the group of organs that help

our body obtain oxygen from the air.
The lungs, trachea and bronchi are parts of it.

Our body needs oxygen for many processes such as digestion


The circulatory system constantly moves blood inside

our body.

The heart pumps blood through blood vessels. 

 Arteries veins and capillaries are blood vessels.


 The kidneys filter the blood, eliminate waste and

produce urine. These are one part  of the

the excretory system with the bladder.

After Christmas  we  will   start  to study the Vital Function of Reproduction. Thanks to this function  we can preserve our species.


People reproduce. When a man and a woman are old enough, they can make
a baby together. This is called sexual reproduction.

Men and women have reproductive systems.
These consist of their sex organs.
Men and women have different sex organs.

Men have a penis, testicles and a prostate gland.

Men make sperm.

Women have a vulva, vagina, uterus and ovaries.

Women make eggs.

When a sperm from a man joins with an egg from a woman,
it is called fertilisation.

A foetus begins to grow in the woman’s uterus



Pregnancy is the formation of a baby in its

mother's womb.

. Babies are formed inside their mother's womb or uterus.

The baby or foetus is connected to the

mother by a tube called the umbilical cord.

Through this tube the baby receives
everything it needs to develop, such as
food and oxygen.


 Development of the baby pregnancy

At the beginning of pregnancy, the foetus is

as small as a grain of sand.

After three months, it is about ten

centimetres long. The head, legs, arms,

fingers and heart are fully formed.

At six months, the baby is about thirty
centimetres long, and moves a lot.

At nine months, the baby is about fifty
centimetres long, and is ready to be born.