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What is Blood Pressure? By Katherine Pease Credit to websites listed below.

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Presentation on theme: "What is Blood Pressure? By Katherine Pease Credit to websites listed below."— Presentation transcript:

1 What is Blood Pressure? By Katherine Pease Credit to websites listed below.

2 But what does all this info mean….

3 Blood pressure is the force created by the heart as it pushes blood into the arteries and the circulatory system. the force created by the heart as it pushes blood into the arteries and the circulatory system. heart

4 For each heartbeat, blood pressure varies between systolic and diastolic pressures. systolicdiastolicsystolicdiastolic Blood Flow in action…

5 Systolic pressure is peak pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are contracting. peak pressure in the arteries, which occurs near the beginning of the cardiac cycle when the ventricles are contracting.ventricles

6 Diastolic pressure is minimum pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are filled with blood. minimum pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are filled with blood.

7 example of normal healthy adult human example of normal measured values for a resting, healthy adult human is 115 mmHg systolic and 75 mmHg diastolic (written as 115/75 mmHg, and spoken as "one fifteen over seventy-five"). example of normal measured values for a resting, healthy adult human is 115 mmHg systolic and 75 mmHg diastolic (written as 115/75 mmHg, and spoken as "one fifteen over seventy-five"). systolicdiastolicmmHg systolicdiastolicmmHg

8 Blood Pressure can change… Systolic and diastolic arterial blood pressures are not static but undergo natural variations from one heartbeat to another and throughout the day (in a circadian rhythm). Systolic and diastolic arterial blood pressures are not static but undergo natural variations from one heartbeat to another and throughout the day (in a circadian rhythm).circadian They also change in response to stress, nutritional factors, drugs, disease, exercise, and momentarily from standing up. They also change in response to stress, nutritional factors, drugs, disease, exercise, and momentarily from standing up. stressdrugsmomentarily from standing up stressdrugsmomentarily from standing up

9 But how does our blood’s path through our heart really look like… Click on link below to see process. Click on link below to see process. webcontent/animations/conten t/human_heart.html webcontent/animations/conten t/human_heart.html webcontent/animations/conten t/human_heart.html webcontent/animations/conten t/human_heart.html

10 Pulse pressurePulse pressure is Pulse pressure the difference between systolic and diastolic pressures. the difference between systolic and diastolic pressures. This what you take when you are working out to see how hard or slow your heart is beating. This what you take when you are working out to see how hard or slow your heart is beating.

11 Can you find your pulse? Your teacher will explain how. Your teacher will explain how. Does it make a difference if you are relaxed or worked up due to exercise? Does it make a difference if you are relaxed or worked up due to exercise? Let’s find out….. Let’s find out…..


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