The Three Major systems - Digestive, Respiratory and Circulatory Systems - Year 8

These notes cover the three systems: Digestive, Respiratory and Circulatory systems in year 8 level.

Digestive system:

• What is digestion and why is it important?
• 5 steps of digestion
• Parts of Alimentary tract and functions
• Peristalsis
• Calories and Kilojoules conversion
• Mechanical and Chemical Digestion
• Labelled diagrams

Respiratory system:

• Difference between respiration and breathing
• Cellular respiration
• Inhaled vs Exhaled air composition
• Parts of respiratory system and functions
• Labelled diagrams

Circulatory system:

• Functions of circulatory system
• Components of circulatory system
• Double circulation
• Electrical circuit
• Labelled heart diagram and functions of parts
• Types of blood vessels
• Blood and its components and functions

Hope you find this useful :)