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TERESA ORTEGA, DAVID PRIETO & PATRICIA SESMA
The function of nutrition is essential to life. Nutrients
give our cells all the energy they need.
The digestive system, the respiratory system, the
excretory system and the circulatory system carry out
the function of nutrition.
It has two parts:
The digestive tract: mouth, pharynx, oesophagus,
stomach, small intestine and large intestine.
The digestive glands: salivary glands, liver and
The respiratory sistem is in charge of breathing.
First, we inhale air and it goes into to the lungs
Then, we exhale air sending it out of the lungs.
Parts: nostrils, pharynx, larynx, trachea, bronchi,
lungs, diaphragm, and alveoli.
The excretory system filters waste substances from
the blood. It removes them from the body through
It is made up of:
Sweat glands: in the skin.They produce sweat.
Urinary system:this is made up of the kidneys and
the urinary tract.
The circulatory system transports nutrients and
oxygen to our cells. It is made up of the heart, blood,
The parts of blood vessels:
Blood is a red liquid tissue made up of cells that
float in a liquid called plasma.
There are three types of blood cells:
red blood cells white blood cells platelets
The heart uses rhythmic systole and diastole
movements to pump the blood around the body.
1. Blood enters the atria through the veins.
2. Passes to the ventricles.
3. Blood comes out of the ventricles, through the
4. Travels all over the body.