What systems are involved in nutrition?
The respiratory system, the digestive system, the circulatory system and the excretory system.
Classify the following into their nutrient group: chicken, banana, milk, eggs, lentils, olive oil, and pasta.
protein, vitamins, proteins, proteins, carbs, fats, and carbs
Describe the route of food in our body.
1º Mouth 2º oesophagus 3º Stomach 4º Small intestine 5º large intestine 6º anus
Here food is broken down by our teeth and mixed with saliva.
Mouth
This is a tube which connects the mouth with the stomach
Oesophagus
Here the "bolus" is mixed with digestive juices and broken down some more.
Stomach
Here the nutrients are absorbed.
Small intestine.
Here the minerals are absorbed and faeces are formed.
Large intestine
These two organs produce digestive juices.
Pancreas and liver.
These are two spongy organs that contain bronchioles and alveoli,
LUNGS
Where does the exchange of gases take place?
Alveoli
Bronchi
Windpipe
Bronchiole
These are tiny air sacs surrounded by capillaries.
Alveoli
Describe the route of air during inhalation.
1º Nasal cavity 2º Trachea 3º Bronchi 4º Lungs 5º Bronchiole 6º Alveoli
Describe the process of inhalation.
The diaphragm contracts, the lungs expand and air enters.
The diaphragm relaxes, the lungs expand and air enters.
Describe the process of exhalation.
The diaphragm contracts, the lungs contract pushing air out
The diaphragm relaxes, thelungs contract and push air out.
The trachea belongs to ...
Digestive system
Respiratory system
