Anatoma

1. ANATOMY
Lucía Fernández Rodríguez
5ºC. CEIP San Sebastián

2. The human body
The human body contains
some vitals organs, which
are responsibles of the
most important functions
of the body. For example:
The heart is responsible
of pump the blood to the
rest of the body; the
lungs permit to breath,
and the brain control’s
and direct the other
systems of the body.

3. Brain

4. Brain
The brain is the biggest part of
the encephalus and is divided
into two middles ( hemispheres).
The external surface is thinner
and is called cerebral cortex; it
contains grey matter , and the
internal cape contains white
matter ( nervious fibre). Our
behaviour conduct is produced
in the cerebral cortex. The
diferents zones of cerebral
cortex control some functions
such as: movement, vision,
touch, and thougts….

5. Cerebellus
It control’s the muscles, the
equilibrium, the movements of the
body and the position

6. The nerves
The nerves are like
the cables of the
body. They joint the
brain with the rest
of the body and
they permit that
the brain give
orders at the
different systems
of the organism.

7. The heart
The heart is the
principal organ of
the circulatory
system , it is inside
of the thoracic box.
It is formed of a
cardiac muscle that
it’s contract for
pump the blood. It
never stop beating.

8. The heart
The heart has four
cameras, two auricles
and two ventricles, and
they are separated for
the valves, that avoids
the blood returns to the
auricles.
Between the right
auricle and ventricle is
the tricuspid valve
And between the left
auricle and ventricle is
the mitral valve

9. The heart
The right side of the
heart pumps the blood
without oxygen to the
lungs, where the cells of
the blood exchange
carbon dioxide for
oxygen. This blood now
with oxygen goes to the
left side of the heart,
where is pumped to the
rest of the organism,
giving the oxygen to our
organs, tissues and cells.

10. Blood vessels
Blood vessels are tubes
which transport blood
through the circulatory
system. There are three
types:
Arteries: Are the blood
vessels that carry blood
away from the heart
Veins. Are the blood
vessels which carry blood
into the heart
Capillaries: are tiny blood
vessels which connect
arteries to veins

11. Blood circulation
There are two circulatory
system:
Pulmonary or minor circulation:
Blood leaves the heart
through the pulmonary artery
and in the lungs the blood gets
oxygen and returns to the
heart through the pulmonary
veins
Systemic or major circulation:
Blood with oxygen from the
lungs leaves the heart through
the aorta artery. It
distributes oxygen to the
body. At the end , it returns
to the heart through the cave
vein

12. The
respiratory
system
The lungs are inside of
thoracic box, we can breath
with them. The air come in
and go out trought of that
tube: the trachea.
When we breath, we fill the
lungs with oxygen and then
the oxygen travel to the rest
of the body

13. The
respiratory
system
The right lung has three
lobules and the left lung
has only two lobules. The
trachea is divided in two
principals bronchus, and
each bronchus is divided
in numerous branches
called bronchioles, that
are ended in the alveolar
sacks, where exchange
the oxygen with the
carbon dioxide who is
exhaled outside of the
body because it is toxic
for our organism

14. The digestive system
The digestive system
converts the food
into nutrients which
our body can absorb.
First, the food is
chewed in the mouth,
then through the
oesophagus , the food
arrives to the
stomach

15. The digestive system
The stomach store
the food during some
hours. In the stomach
we have an
acide(gastric juices)
that digest the food
and converts it in a “
soup” that arrives to
the intestine. The
intestine absorbes
the nutrients of the
food, and solid rests
arrives to the colon
and then to the
outside

16. The excretory system
Excretion is the
elimination of the
waste substances of
the body.
The kidneys filter the
blood and produce
urine. The urine
through the ureters
arrives to the bladder
and through the
urethra to the
outside

17. The end