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VITAL FUNCTIONS (NUTRITION The way humans beings get energy from food.…
VITAL FUNCTIONS
INTERACTION
We use our senses to get information and respond appropriately
Nervous system
sends information through the nerves
Brain
is the central part, organises the information and take decisions
Nerves
tha canal that the information uses to travel
Musculoskeletal system
Receive messages from the brain
Parts
Muscles
Bones
Type of responses
Involuntary
It reacts very quickly without thinking
Voluntary
It make actions we think
Senses
Stimulus travelling to the brain through the nerves
Sight
To see colour, shape and size
Touch
To know how an object feels like
Smell
to smell odours
Hearing
To understand sounds.
Taste
. to identify flavours
NUTRITION
The way humans beings get
energy
from food.
RESPIRATORY SYSTEM
Inhalation (oxygen). Exhalation (carbon dioxide)
Vocal cords
Produce the sound when we speak
Windpipe
Air flows from and to the lungs. It leads to 2 bronchi.
Pharynx
Apart from food, air flows from the nose into lungs
Lungs
Spongy organs we use to breathe
Nasal passage
Air gets warmer and wet
Alveoli
tiny air sacs where gas exchange takes place.
CIRCULATORY SYSTEM
Transports nutrients, oxygen around the body and the waste substances to the kidneys
Heart
Pumps blood around the body
Blood vessels
Carry blood cells around the body
Veins
Capillaries
Arteries
DIGESTIVE SYSTEM
Process of breaking down food into pieces.
Liver and pancreas
- help to transform food into nutrients
Stomach
- mixer
Oesophagus
Pharynx
- bolus passes from mouth to oesophagus
Mouth
- It breaks the food into small pieces (
bolus
)
Small intestine
- where nutrients pass into the blood.
Large intestine
- Water and minerals are taken out. It produces
stools
.
THE EXCRETORY SYSTEM
Remove unwanted substances from the body
KIDNEYDS
filter the blood getting urine
URINE
yellow liquid that travels from kidneys to the bladde through the
URETERS
BLADDER AND URETHRA
. urine is stored in the bladder and leaves the body through this tube.
REPRODUCTION
Make babies
REPRODUCTIVE SYSTEMS
We perform reproduction with those systems
MALE
urethra
Tube inside the penis that carries the semen and the urine
Testes
produce sperm
penis
is the external organ
FEMALE
Uterus
is where baby develops
Vagina
is a tube that leads from the uterus
Ovaries
produce ovums
Vulva
is the external part
PREGNANCY AND DELIVERY
PREGNANCY
A foetus grows inside the uterus. It lasts 9 months
Amniotic sac
keeps the baby warm and protectes
Umbilical cord
povides the baby with nutrients and food from the mother
DELIVERY
When the foetus is ready to be born
foetus is fully developed
mother´s uterus contracts to help him to go out.
