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Unit 8: Physiology of Human B ody S ystems

This internally assessed unit explores the physiology of the Musculoskeletal, Lymphatic, and Digestive systems. Learn about the composition and functions of the lymphatic system, and understand the impact of dysfunction and available treatments.

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Unit 8: Physiology of Human B ody S ystems

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  1. Unit 8: Physiology of Human Body Systems This is an internally assessed unit and you will be required to carry out three assignments to complete the unit.

  2. In this unit you will learn about the physiology of three human body systems: • Musculoskeletal • Lymphatic • Digestive You need to develop your knowledge and understanding of the three systems, the implications when they are not working properly and the corrective treatments that are available.

  3. Learning Aim B Understand the impact of disorder on the physiology of the lymphatic system and the associated corrective treatment Please take a few minutes to complete Activity sheet 8.6.

  4. For this learning aim you need to: Investigate the composition and locate the component parts of the lymphatic system: • Spleen, thymus, tonsils, lymph gland, vessels, valves, lymph nodes. Understand the three main functions and normal working of the lymphatic system: • Return of interstitial fluid/hydrostatic pressure • defence against disease • absorption of fats from digestive system Understand the impact of dysfunction of the system and associated treatments.

  5. Level 3 Nationals Unit 8 Physiology of Human Body Systems Lymphedema, lymphadenitis and Hodgkin’s lymphoma The positions of the lymphatic organs

  6. spleen • thymus • tonsils • lymph gland • vessels • valves • nodes Lymph nodes: • axillary • abdominal • inguinal • popliteal • supratrochlear Structures of the lymphatic system to be described:

  7. Blood pressure is measured by a sphygmomanometer Throughout the cardiac cycle, the blood pressureincreases and decreases: • systolic pressureis the pressure at which the blood leaves the heart in the aorta. • diastolic pressure is the minimum pressure in the arteries. It reflects the resistance of the the small arteries and capillaries to the flow of blood. The liquid forced out of blood capilleries forms interstitial fluidwhich bathes cells. This forms lymph. Measuring blood pressure

  8. How a lymph is formed

  9. What role does each of the parts of the lymphatic system play in defending the body against disease? The lymphatic system

  10. How the products of digestion are absorbed in the ileum

  11. Learning Aim B vocabulary

  12. Assessment At the end of the teaching and learning phase, following the tasks provided in the assignment brief, you will now be assessed on your ability to describe, explain and evaluate: • The structure and function of the lymphatic system • Health matters and treatments related to the lymphatic system. When producing evidence for assessment, you must work independently and produce valid and authentic work to submit by the hand-in date. You can refer to notes and materials from lessons when producing your evidence. You must give references for source materials you have used.

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