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 HeartThe 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 PartsHeart 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 FactorsRisk FactorsThose we can control vs. Those we cannotThose 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: http://www.kidshealth.org/kid/body/heart_noSW.html

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 123-127), 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 APPLICATIONPERSONAL 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.