Systems
Which system is in charge of the digestion and eliminating faeces?
Digestive system
Mix of saliva and food in pieces.
Bolus
Place where gas exchange takes place.
Alveoli
Blood vessels
Arteries
Veins
Capillaries
Where does the waste from urine and sweat come from?
It is waste that the cells produce.
Which system is in charge of distributing substances?
Circulatory system
tube that conects the pharynx with the stomach
Oesophagus
Tube between the pharynx and the trachea.
Larynx
They exchange substances
Capillaries
the two functions of the kidneys
Filter the blood and produce urine.
Organ in charge of eliminating waste from the cells.
Skin
Organ where nutrients are obsorbed into the blood.
Small intestine
Three moments of breathing.
Inhalation, gas exchange, exhalation
Blood with oxygen goes from the heart to the organs in an artery, then there is an exchange of gases. Blood with carbon dixiode goes from the organs to the heart in a vein.
Systemic circuit
What produces sweat?
the sweat glands
System in charge of taking in oxygen and eliminating carbon dioxide.
Respiratory
Waste from the food, produced in the large intestine.
Faeces
Lungs expand and air goes in through the respiratory tract so we can take the oxygen to the blood.
Inhalation
In charge of transporting oxygen and carbon dixide
Red blood cells
Why do we sweat?
To cool down the body temperature and to eliminate waste.
System in charge of producing and eliminating urine.
Excretory system.
Glands and functions of the digestive system
Liver: bile
Salivary glands: saliva
Pancreas: pancreatic juice
Why do we need to breathe?
Because our cells need oxygen and they need to eliminate carbon dixide.
Why does our heart pump faster when we practice exercise?
Because our cells are working harder and they need more oxygen and eliminate more carbon dixide.
What organ eliminates urine?
Urethra