THE HUMAN BODY AND INTERACTION

NEREACALONGE

CHINCHILLA6º

TEMA 1

THE THREE VITAL

FUNCTIONS

NUTRITION

REPRODUCTIONINTERACTION

NUTRITION

WHEN WE EAT FOOD

INTERACTIONWHEN WE INTERACT WICHT OTHER PERSON

REPRODUCTION

WHEN WE HAVE A BABY

DIGESTIVE SYSTEM

RESPIRATORYSYSTEM

CIRCULATORYSYSTEM

ESCRETORY SYSTEM

NERVOUS SYSTEM

DIGESTIVE SYSTEM• The digestive system breaks down the food that we

eat into small molecules that the body can absorb.• Stomach and intestines are organs of digestive

system.

THE RESPIRATORY SYSTEM• The respiratory system absorb oxygen and relax

carbon dioxide.• Lungs and trachea are organs of respiratory system.

THE CIRCULATORY SYSTEM• The circulatory system transport blood all over the

body.

THE EXCRETORY SYSTEM• The excretory system eliminates waste our body

productes.

HEALTHY HABITS

• EAT A BALANCE DIET• EXERCISE• KEEP CLEAN AND GOOD HIGYENE• HAVE A GOOD POSTURE• SPEND TIME WITH OUR FRIENDS AND FAMILY

EXTERNAL

• This stimuli are outside the body.Our sense organs capture these stimuli and send message to brain .EXAMPLE

• WHEN YOU GO OUT AND IT’S VERY COLD, YOU FEEL THE COLD AND SEND THE INFORMATION TO BRAIN, AND YOUR BRAIN SAY GO TO PUT A JACKET.

INTERNAL

• Happend inside our body.Receptor organs recibes these stimuli,and then send the message to brain.The stomach is a receptive organ because it takes in food.

THE INTERACTION FUNTION

EXAMPLE OF EXTERNAL

WHEN YOU GOOUTAND THE WEATHERARE COLD, AND YOU ARE COLD

YOU SEND THE INFORMATION TO THEBRAIN AND THE BRAINSAY GO AND PUT A JACKET

AND YOU GO AND PUT YOUR JACKET, YOURSCARF……..

• TYPES OF RESPONSE:MOTOR RESPONSE• Is when your muscles moveGLANDULAR RESPONSE• Happend when a organ called gland produce a

subtance.

EXAMPLES OF MOTOR AND GLANDULAR RESPONSE

MOTOR RESPONSE GLANDULAR RESPONSE

SMELLNOSE

TASTETONGUE

TOUCHSKIN

SIGHTEYES

EARINGEAR

THE 5 SENSES

THE SENSE OF SMELL• Olfatory receptors are in nasal cavity nex to

pituitaryarea.

THE SENSE OF TASTE• Taste receptors are in the tongue.They are

called taste bubs,and have different flavours.

BITTER SOUR

SWEETSALTY

THE SENSE OF TOUCH• Touch receptors detect all that you feel or

touch

exmples

THE SENSE OF SIGHT

• Light enters throught pupil,lents and retina.The optic nerve send the information to the brain

BEACHMOUNTAINS

WE CAN SEE DIFFERENT OBJECTS,PLACES…

THE SENSE OF EARING

• The outer ear collect things.The sound pass through the inner ear canal,the middle ear and the three small bones.Then the sounds reach the cochlea and the auditory canal.

exmples

THE NERVOUS SYSTEM

Controls our body seding,reciving and interpreting information from old parts of our body.The messajes travel thought nerve impulses.

SENSE ORGANS

RESPON TO A STIMULUS AND SEND

IMPULSES ALONG THE SENSORY

NERVES

SENSORY NERVES

THEY CARRY INFORMATION FROM SENSES ORGANS AND

INTERNAL ORGANS TO THE CENTRAL

NERVOUS SYSTEM

CENTRAL NERVOUS SYSTEMReceives and interprets information and produces response.Made up of:

SPINAL CORDPRODUCES INVOLUNTARY MOVEMENTS

BRAININSIDE THE CRANIUM OR SKULL.

MAKE DECISIONS AND GIVES ORDERS.MUSCULOSKELETAL

SYSTEM

INVOLUNTARY MOVEMENTSProduce by the spinal cord.

Reflexes are fast and automatic.

VOLUNTARY MOVEMENTSProduce the brain.

Voluntary movements are slower than involuntary movements.

MOTOR NERVESCOORDINATES THE INFORMATION, RECEIVES AND SENDS IMPULSES ALONG MOTOR NERVES.

INVOLUNTARI

MOVEMENTS

VOLUNTARY MOVEMENTS

BRAINCEREBRUM:Controls our thinking,memory and languaje.CEREBELLUM:Controls balance and coordinationBRAIN STEM:Controls the organ functions,for example heart beat.

CEREBRUM

CEREBELLUM

BRAIN STEM

HEART BEAT

MUSKULOSKELETAL SYSTEM

• LIGAMENTS:Connect bones to each other.• TENDONS:attach muscles to the bones.• BONES:Proect the internal organs.• MUSCLES:Can stretch and contract.This helps

the bones to move.

JOINTS

BONES

MUSCLES