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Biology Lesson 1 Keeping Healthy Learning Objectives: In this chapter you will learn: Heart - Position and structure, Cardiac cycle, Control of heart rate, Cardiac output, Blood pressure, Blood supply to the heart Double circulation - Pulmonary and systemic circulation Blood vessels - Artery, veins and capillary, Exchange of materials between blood and body cells Blood - Composition of blood (plasma and cell particles) Lymph and lymphatic system - Formation and role of lymph, Components of lymphatic system Diseases of circulatory system – Atherosclerosis, Coronary heart disease, Hypertension Processes of nutrition in human General plan of the human digestive system - Roles of various parts of the alimentary canal and accessory glands Structure and care of teeth Absorption digested products - Absorption of water-soluble and fat-soluble substances, Structure of small intestine in relation to absorption Assimilation of digested products Importance of dietary fibre Suggested Time Allocation: Part Theme 1 Heart - Position and structure, Cardiac cycle, Control of heart rate, Cardiac output, Blood pressure, Blood supply to the heart Double circulation - Pulmonary and systemic circulation Blood vessels - Artery, veins and capillary, Exchange of materials between blood and body cells Blood - Composition of blood (plasma and cell particles) Lymph and lymphatic system - Formation and role of lymph, Components of lymphatic system Diseases of circulatory system – Atherosclerosis, Coronary heart disease, Hypertension Processes of nutrition in human General plan of the human digestive system - Roles of various parts of the alimentary canal and accessory glands Structure and care of teeth Absorption digested products - Absorption of water-soluble and fat-soluble substances, Structure of small intestine in relation to absorption Assimilation of digested products Importance of dietary fibre Total time suggested: 2 3 4 5 6 7 8 9 10 11 12 Suggested Time Allocation 60 mins 15 mins 30 mins 15 mins 30 mins 30 mins 15 mins 60 mins 30 mins 30 mins 30 mins 15 mins 360 mins (6 hours) After studying this topic students should be able to: List the 5 processes of nutrition Relate the structures of the alimentary canal to their functions Describe the roles of accessory glands in digestion of food Describe the structure of teeth List different measures for preventing tooth decay Explain how digested products passes from the small intestine to the bloodstream List the routes and transport of absorbed food substances Describe the role of the liver in assimilation Describe the importance of dietary fibre References for further studies: Biology (6th ed.); EP Solomon, LR Berg & DW Martin; Thomas Learning Inc.; 2002 Mammals: Structure & Function; CJ Clegg; John Murray; 1998 Essentials of anatomy and physiology (4th ed.); RR Seeley, TD Stephens & P Tate; McCraw-Hill Higher Education; 2002