SCIENCE UNIT 2

1. CIRCULATORY SYSTEM

1.1. 1º Deoxygenated bood passes from the right atrium and to the right ventricle.This deoxygeneated blood goes to the lungs

1.2. 2º In the heart, blood is separeted into oxygen and into carbon dioxide

1.3. 3º Oxygeneted blood goes to the left atrium and into the left ventricle then this blood goes to the aorta and to the rest of the body.

2. RESPIRATORY SYSTEM

2.1. PARTS OF THE RESPIRATORY SYSTEM

3. EXCRETORY SYSTEM

3.1. PROCESS OF THE EXCRETORY SYSTEM

4. DIGESTIVE SYSTEM

4.1. 1ºThe food enters our mouth

4.2. 2º The oesophagus transport the bolus to the stomach

4.3. 3º The stomach contains gastric juices that disolve the food

4.4. 4º The liquid(food) goes to the small intestine.There the food is mixed with bile and pancreatic jucies.We separate the nutrients and the waste products, The waste products go to the large intestine

4.5. 5ºIn the large intestine, solids leave the body through the anus.