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Circulation!. The teen brain. Where we’re headed. Sheep heart dissection next class Rest of quarter: Circulation and Respiration Quarter ends April 16 th. Test 2:. A- Wed. April 14 th on circulation/respiration D- Fri. April 16 th on circulation/respiration

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Circulation!

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Circulation l.jpg

Circulation!


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  • The teen brain


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Where we’re headed

  • Sheep heart dissection next class

  • Rest of quarter: Circulation and Respiration

  • Quarter ends April 16th


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Test 2:

  • A- Wed. April 14th on circulation/respiration

  • D- Fri. April 16th on circulation/respiration

  • E- Thurs. April 15th on circulation/respiration

  • F- Tues. April 13th Quiz on circ/resp.

  • G- Thurs. April 15th


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Circulation!


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Circulation!

  • The average adult has about __ liters of blood circulating inside of his/her body.

  • Your system of blood vessels (arteries, veins, capillaries) is over __ km long.

  • Blood takes about __to complete one cycle through the vascular system.

  • In a 70-year lifetime, the average human heart beats ______times.

  • In a day, an adult’s heart pumps ____ liters of blood.

  • Point to your heart.


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Circulation!

  • The average adult has about _5_ liters of blood circulating inside of his/her body.

  • Your system of blood vessels (arteries, veins, capillaries) is over _96,000_ km long.

  • Blood takes about _20 seconds_to complete one cycle through the vascular system.

  • In a 70-year lifetime, the average human heart beats __2.5 billion____times.

  • In a day, an adult’s heart pumps __7500__ liters of blood.

  • Point to your heart.


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Circulation!

Essential Questions:

  • How can we study the health of a heart, so we can improve the lives of everyone who has a heart?


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  • How would you construct a heart, if you were in charge of designing one?


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Today’s Learning Goals

  • Determine the importance of the human heart and blood

  • Identify the structures of a heart and the composition of blood

  • Know the complete pathway of blood through the human heart

  • (quizlet next class?)


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Importance of the Heart?

  • I need to get that blood circulating around to EVERY cell in my body!

  • Once the blood drops off what the cells need, then it needs to bring out the waste and get more of what’s needed!


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Blood! What does it do?(wouldn’t Coca Cola work instead?)

  • Transports- O2 and CO2

  • Carries nutrients and hormones

  • Contains disease fighting substances

  • Has thermal energy

  • Ships waste!


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What is the secret recipe of blood?(Your Vampire friends will be happy you know)

  • Red Blood Cells (erythrocytes)

  • White Blood Cells (leukocytes)

  • Platelets (thrombocytes)

  • Plasma

  • The cells and platelets are all produced by bone marrow


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The heart is a pumping organ. Where does the blood GO?

A Model

Watch if you're brave

  • Arteries  Away from the heart

  • Veins  Toward the heart

  • But how can the blood get to each and every one of my cells?


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  • An image similar to what’s in your book.


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If Santiago were your circulatory system, come up with the places that represent the following-

  • ventricles

  • pacemaker

  • valves

  • arterioles

  • plasma

  • Hemoglobin


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Explore the Heart today:

  • Interactive heart questions, pt 1

    • Don’t turn in, but KNOW and UNDERSTAND

    • You are free to type answers for your group and save file for printing later


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  • Stop and start a heart....

  • watching the beating


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Quick review (hint: know for next class)!

  • Outline the pathway of blood, starting at left ventricle.


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Pathway of blood, starting at L.V.

  • Left ventricle -> aorta (BAM!)

  • Aorta -> arteries around body

  • Arteries -> capillaries around body

  • Capillaries -> veins

  • Veins -> Vena cava

  • Vena cava -> right atrium

  • Right atrium -> right ventricle

  • Right ventricle -> pulmonary artery

  • Pulmonary artery -> lungs

  • Lungs -> pulmonary vein

  • Pulmonary vein -> left atrium

  • Left atrium -> left ventricle


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