Dossier
Biology
Second quarter
, INDEX
1. Unit 3………………………………………………………………………page 3
1.1 The digestive system…………………………………………………………..page 4
1.2 Digestive processes…………………………………………………..…..……page 8
1.3 Principal diseases of the digestive system…………..…….…………page 11
1.4 Healthy habits for the digestive system………….……….……….…page 14
1.5 The respiratory system……….…………………………………………..…page 17
1.6 How the respiratory system works……..………………………....….page 20
1.7 Diseases of the respiratory system…………………………………….page 23
2. Unit 4……………………………………………………………………page 30
2.1 The internal environment and the circulatory system…..……...page 31
2.2 The lymphatic system……………………..……………….………..…..…page 32
2.3 Blood………………………………………………….………….….….……..…page 33
2.4 Blood vessels…………………………………..………….….…..……………page 35
2.5 The heart………………….……….………………………………….…………page 37
2.6 The double circulatory system…………..…………………………..….page 40
2.7 Cardiovascular diseases………………………………..………………….page 42
2.8 Diseases and disorders o the blood…….………………………...…..page 44
2.9 Healthy habits for the circulatory system………………….….….…page 46
2.10 Excretion…………………………………………..………………..…………page 49
2.11 Diseases of the excretory system. Healthy habits……….….……page 52
3. Activities………….…………………………………………….………page 55
4. Practices…………….…………………………………………….……page 56
4.1 Practice 4: Els sistema digestiu……………………………….…….…..page 56
4.2 Practice 5: Lung dissection……………………………………..…….…..page 59
4.3 Practice 6: Qüestionari del sistema respiratori…………..….……page 62
4.4 Practice 7: Heart dissection…………………………………….…..……page 64
4.5 Practice 8: Qüestionari del sistema circulatori…………..…..……page 67
, UNIT 3
Nutrition: the digestive and
respiratory systems
, 1. The digestive system
The digestive system transforms food into nutrients that are the right
size to reach the bodv cells and be absorbed.
To carry out this function, the digestive system consists of a group of
organs and structures: the digestive tract and the accessory glands.
The digestive tract
The digestive tract is a long, muscular tube varying in diameter. It begins at the
mouth, continues through the pharynx, oesophagus, stomach and small
intestine, and ends in the large intestine.
Biology
Second quarter
, INDEX
1. Unit 3………………………………………………………………………page 3
1.1 The digestive system…………………………………………………………..page 4
1.2 Digestive processes…………………………………………………..…..……page 8
1.3 Principal diseases of the digestive system…………..…….…………page 11
1.4 Healthy habits for the digestive system………….……….……….…page 14
1.5 The respiratory system……….…………………………………………..…page 17
1.6 How the respiratory system works……..………………………....….page 20
1.7 Diseases of the respiratory system…………………………………….page 23
2. Unit 4……………………………………………………………………page 30
2.1 The internal environment and the circulatory system…..……...page 31
2.2 The lymphatic system……………………..……………….………..…..…page 32
2.3 Blood………………………………………………….………….….….……..…page 33
2.4 Blood vessels…………………………………..………….….…..……………page 35
2.5 The heart………………….……….………………………………….…………page 37
2.6 The double circulatory system…………..…………………………..….page 40
2.7 Cardiovascular diseases………………………………..………………….page 42
2.8 Diseases and disorders o the blood…….………………………...…..page 44
2.9 Healthy habits for the circulatory system………………….….….…page 46
2.10 Excretion…………………………………………..………………..…………page 49
2.11 Diseases of the excretory system. Healthy habits……….….……page 52
3. Activities………….…………………………………………….………page 55
4. Practices…………….…………………………………………….……page 56
4.1 Practice 4: Els sistema digestiu……………………………….…….…..page 56
4.2 Practice 5: Lung dissection……………………………………..…….…..page 59
4.3 Practice 6: Qüestionari del sistema respiratori…………..….……page 62
4.4 Practice 7: Heart dissection…………………………………….…..……page 64
4.5 Practice 8: Qüestionari del sistema circulatori…………..…..……page 67
, UNIT 3
Nutrition: the digestive and
respiratory systems
, 1. The digestive system
The digestive system transforms food into nutrients that are the right
size to reach the bodv cells and be absorbed.
To carry out this function, the digestive system consists of a group of
organs and structures: the digestive tract and the accessory glands.
The digestive tract
The digestive tract is a long, muscular tube varying in diameter. It begins at the
mouth, continues through the pharynx, oesophagus, stomach and small
intestine, and ends in the large intestine.
