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B – The Cardiovascular System
The structure and function of arteries, capillaries and veins The structure and function of the heart Pathology of cardio vascular disease (CVD) Blood glucose levels and obesity
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KA 6d: Learning Outcomes
State what blood pressure is Describe how blood pressure can be measured Explain how systolic and diastolic pressure are detected State the typical blood pressure reading for a young adult State what is meant by hypertension State the link between by hypertension and coronary heart disease
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How is blood pressure measured?
What is blood pressure? How is blood pressure measured?
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Brachial Artery Use a sphygmomanometer
First pressure reading after an inflatable cuff stops blood flow and deflates gradually, causing the blood to start to flow (detected by a pulse) at systolic pressure. Second reading taken when the blood flows freely through the artery (and a pulse is not detected) at diastolic pressure. Brachial Artery
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Blood pressure cuff (sphygmomanometer)
A maximum (systolic) and a minimum (diastolic) pressure is given 3 values are given: Sys (systole) Dia (diastole Pulse
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Blood Pressure changes through the blood vessels
A typical reading for a young adult is 120/70 mmHg (millimetres of Mercury)
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Hypertension AKA High blood pressure
Hypertension is a major risk factor for many diseases including coronary heart disease. The Silent Killer (5:13) TASK: Add extra notes during the video to help you understand the causes/process/effects of high blood pressure better!
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TASKS: Complete the Qs on page 172 of the textbook
You have 20 minutes!
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KA 6d: Learning Outcomes
State what blood pressure is Describe how blood pressure can be measured Explain how systolic and diastolic pressure are detected State the typical blood pressure reading for a young adult State what is meant by hypertension State the link between by hypertension and coronary heart disease
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