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Prerequisite Knowledge. Students should have knowledge of: Blood Blood vessels Double circulation The location of the heart The basic functions of the heart The basic functions of the atria and ventricles. Specific Instructional Objectives:. Students should be able to:
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Prerequisite Knowledge • Students should have knowledge of: • Blood • Blood vessels • Double circulation • The location of the heart • The basic functions of the heart • The basic functions of the atria and ventricles
Specific Instructional Objectives: • Students should be able to: • identify and describe the function of the septum • explain the difference in structure between the left and right ventricles • explain the difference in structure between the atria and ventricle walls • (Students provided with slides so they can fill in answers)
Deoxygenated Blood Oxygenated Blood Septum A cup of water separated into 2 coloured parts by a waterproof card. What do you think is the function of the septum?
Why do you think the separation of deoxygenated and oxygenated blood is important? What happens if the septum is broken or removed? Septum Hole in the heart or septal defect http://www.webmd.com/video/helex-heart-patch
RIGHT LEFT Septum
LORD of the reverse (DROL) R D ight L O eft Septum eoxygenated xygenated A cup of water separated into 2 coloured parts by a waterproof card.
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How do we identify the side of the heart that contains oxygenated blood? The side with a thicker muscular wall. Does that mean that the whole half of the heart will be thicker than the other? There is NO difference in thickness between the left and right atria.
Recap! What is the function of the septum? What happens if the septum is broken or removed? In the heart, is the thickness of the muscular walls uniform? Why?
Next lesson: Learn about the rest of the structure of the heart Atria and ventricle involvement in the muscular contractions of the heart (Homework: Read up)