An animated walkthrough of the human circulatory system narrated in Chichewa, using local terms like misempha (mtsempha/blood vessels) and impsyo (kidney) alongside standard anatomical labels. The heart, misempha, lungs, and impsyo are shown with color-coded paths distinguishing oxygenated and deoxygenated blood, plus a simplified view of the lymphatic system. Designed for junior and senior secondary biology students and teachers who want a bilingual, visual introduction to cardiovascular and lymphatic structure and function.
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explain the human circulatory system using motion graphics and colourful disntinctions. Explain in Chichewa so that students can understand. Use misempha for blood vessel, impsyo for kidney. show each organ that is mentioned and use this information for reference Circulatory system Human circulatory system It the system of blood, blood vessels, lymphatics, and heart concerned with the circulation of the blood and lymph At junior secondary level, you learnt about human circulatory system. What are the components of the human circulatory system? You are right, if you your answers are the heart, blood vessels and blood, lymph and lymph vessels. The circulatory system depends on the heart to pump blood as well as contraction of muscles to squeeze lymph along lymphatic vessels. Blood which has been pumped is conducted or transported through blood vessels. The composition of the circulatory system (a) Cardio vascular system or blood circulatory system (b) Lymphatic system Parts of the Human Circulatory System The human circulatory system is also called Cardio Vascular System. Why is it regarded as a cardio vascular system? Cardio refers to the heart while vascular refers to presence of blood vessels. If you recall from the previos unit about plant structure and function, you learnt that plants have vascular system with xylem and phloem as structures for transport of substances. Using this knowledge, describe functions of the circulatory system. The functions include a. Transportation. The system transports the following substances food nutrients from ileum to the liver and then to other tissues oxygen from lungs for respiration to tissues such as brain, muscles etc carbon dioxide from tissue to lungs waste products from tissue to the excretory organs such as skin, kidneys and lungs hormones from the endocrine glands to the target organ antibodies which protect the body against infection. b. Protection This is done with the help of white blood cells and platelets. c. Regulation Blood regulates body temperature since it distributes heat to different parts of the body as it flows. Audience: middle schooler