Let’s Get Started! 1.Choose 3 muscles of your body you think are important. Some examples are shown to the right. 2.Write what purpose you think they serve. 3.Rate them in importance from 1 (most important) to 3 (least important). 4.Be ready to share your answers. 5.Remember: I should ONLY hear the music!

The Human Heart What is it? What does it do? What are the risk factors for heart disease? How do we prevent heart disease?

What is it? The heart is a muscle Main part of the circulatory system (aka cardiovascular system) Pumps oxygen & nutrient rich blood to all tissues of the body…brains, bones, skin, internal organs, muscles Beats from 60 to 100 times per minute, but can go much faster when necessary. It beats about 100,000 times a day, more than 30 million times per year, and about 2.5 billion times in an average lifetime.

Heart Parts 2 chambers: left & right Each has atrium (top) and ventricle (bottom) Chambers serves as the pump (the lungs of the heart) Left & right pulmonary arteries loop only to the lungs (only 1 pulmonary vein, on left) Aorta and superior and inferior vena cavas circulate blood to and from rest of the body

The Aorta Largest artery in the body Main “plumbing” from heart to body 3 parts: 1.Descending 2.Ascending 3.Arch

Heart Disease 1.5 million heart attacks a year with 500,000 resulting in death That’s about 1 heart attack every 20 seconds with death about every minute #1 killer in the U.S. Reggie Lewis Boston Celtics 27 years old Died of heart attack on basketball court in 1993

A Heart Attack

Risk Factors Those we can control vs. Those we cannot How can we combat these risk factors?

Heart Health Activity – 40 points Station 1 – Webquest (10 points) Follow Mrs. Earby to the library to answer the questions (2 points each) from this section by visiting the following website: Station 4 – Question Creations Using the library books provided, develop your our set of 5 questions and answers about the human heart and/or circulatory system. You can use multiple choice, fill in the blank and short answer questions. You may NOT use true/false questions. You may use an additional sheet of paper if necessary. Each question and answer set is worth 2 points. Station 3 – Draw & Label (10 Points) Draw the human heart using the model or the diagram display. Label the 8 of the following parts: left & right atriums, left & right ventricles, left & right pulmonary arteries, left pulmonary vein, superior & inferior vena cava, aortic arch, descending aorta Station 2 – Unscramble & Define (10 points) Using the Teen Health textbooks provided (pages ), unscramble the following words and define them. Next, use them in a sentence stating a fact about the human heart and/or the circulatory system. Each is worth 2 points.

The Human Heart

PERSONAL APPLICATION Think about activities you could do or changes you might make to improve or maintain your heart health. Write 1 thing you can do or change: -on your own -with a friend -with your family Justify how or why each is beneficial to your heart health.