+ Hyper Hearts! Fun with heart monitors By Benjamin Joslin
+ Today What is the circulatory system? 2. Where and how to find your own pulse 3. Experiment with heart monitors 4. Will music and color change your heart beat?
+ The Circulatory System Overview Moves nutrients, gases, hormones, blood cells throughout the body 60,000 miles of blood vessels supply the various tissues of our bodies The heart is the driving force of the circulatory system, beating 100,000 times each day The lungs are responsible for the exchange of O 2 and CO 2
+ Blood Red blood cells, erythrocytes, transport gases like O 2 and CO 2 Platelets help clot wounds White blood cells, leukocytes, are part of the immune system Fun fact about blood: In the early 19 th century, some advertisements claimed that riding the carousel was good for the circulation of blood!!!
+ The Heart Heart pumps oxygenated blood to the body and deoxygenated blood to the lungs 4 total chambers, 4 valves, 2 electrical nodes “Lub-dub” ?
+ Healthy Hearts Heart disease claims 1 life every 34 seconds in the US Leading cause of death in the US (616,067 in 2009) Ways to improve your cardiovascular system: 1. Exercise once a day 2. Eat a well-balanced diet 3. Remain stress free by removing yourself from difficult environments 4. Stay away from cigarettes, second-hand smoke, and other drugs
+ Heart Rate Heart rate is number of heart beats per minute Measure heart rate at the carotid, radial, or posterior tibial artery Use two fingers and a watch or a pulse meter
+ Heart Rate Continued... Resting heart rate is the number of beats per minute when you are at complete rest Maximum heart rate is the highest number of beats the heart can contract in 1 minute Maximum heart rate is predicted: Boys Maximum heart rate = 226 – Age Girls’ Maximum heart rate = 220- Age
+ References Middle School Psychology Experiments, psychology-experiments.html, Can different music change your heart rate and does it change by gender?, _heart_rate_and_does_it_change_by_gender, Heart Rate 101, cs.htm,