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1. THE HUMAN BODY AND
INTERACTION
NATURAL SCIENCE
6º COURSE
ROXANA MARIA TONA SEUCIUC

2. THE THREE VITAL FUNCTIONS
o All livig things have one thing in common: they can carry
out the three vital functions of nutrition , interaction and
reproduction
o THE HUMAN BODY AND NUTRITION
We need nutrition to keep our bodies working. There are
four systems
 THE DIGESTIVE SYSTEM
 THE RESPIRATORY SYSTEM
 THE CIRCULATORY SISTEM
 THE EXCRETORY SYSTEM

3. HEALTH HABITS
 Eat a balance diet
 Exercise
 Keep clean with good hygiene habits
 Spen time with your friends and family

4. THE
DIGESTIVE
SYSTEM
THE
RESPIRATORY
SYSTEM
THE
RESPIRATORY
SYSTEM
THE
CIRCULATORY
SYSTEM
THE
EXCRETORY
SYSTEM

5. TYPES OF STIMULI
 Our sense organ
capture these stimuli
and sen message to
the brain
EXTERNAL STIMULI INTERNAL STIMULI
 Receptor organs
inside our body recive
these stimuli

6. 1
STIMULUS
SENSATIONS
2
PROCESSING
INFORMATION
3
RESPONSE

7. TYPES OF RESPONSE
 Happen when the
muscles move
 Happen when glands
produce a substance
for example when you
sweat
MOTOR RESPONSES GLANDULAR
RESPONSES

8. THE SENSE OF SMELL
 The sense of smell
needs the sense of
taste to work properly
the organ of smell is
the nose

9. THE SENSE OF TASTE
They are small bumps called
taste buds . Taste buds
can help us to taste the
difference between sweet,
salty, sour and bitter. The
organ of taste is the mouth

10. THE SENSE OF TOUCH
 Touch receptors can
detect temperature, pain,
pressure and texture
The organ of touch is the
skin

11. THE SENSE OF SIGHT
 The light enter the
eye throug the pupil,
the lens and go to
the retina
 The retina sends the
information to the
brain
 The organs of sight
are the eyes

12. THE SENSE OF HEARIN
 Wen we ear
something the
auditory nerve
sends signals to the
brain