UNIT 3 The Circulatory System Mr. Scisly 6th Grade Health

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UNIT 3The Circulatory SystemMr. Scisly6th
Grade Health
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LESSON 1WARM-UP ACTIVITY1) What is the most
important muscle in the body?Why?2) What does
the Circulatory System do?
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LESSON 1 GOALS

• Todays goal is to understand the function of
  the circulatory and the importance of the heart.

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Circulatory System
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Preview Video Questions

• 1) What does the blood transport that our body
  needs?
• 2) What does the body transport that our body
  needs to get rid of?
• 3) What result from eating a diet high in fat?
• 4) How does and an athletes heart differ from a
  non-athletes heart?

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Circulatory System

• What does it do?
• It carries needed substances to cells and carries
  waste products away from cells.

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Lesson 1Guided Practice

• Work on the Bodys Transportation System
  Handout in your group.

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LESSON 2WARM-UP ACTIVITY

• Pre-Test
• ON YOUR OWN, try to label the parts of the heart
  on the worksheet using the word bank.

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LESSON 2 GOALS

• By the end of the period today, you will be able
  to label a heart diagram and also the understand
  the functions of various parts of the heart.
  (Atrium, Ventricle, Septum, Valve, Pacemaker)

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What Is the Heart?

• A Hollow Muscular organ that pumps blood
  throughout the body.

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The Parts of the Heart

• Septum- Thick muscular wall that separates the
  right and left sides of the heart
• Atrium- Two upper collecting chambers of the
  heart
• Ventricles- Two lower pumping chambers of the
  heart
• Valve- A flap of tissue that prevents blood from
  flowing backward
• Pacemaker- Located in the right atrium and sends
  out signals that make the heart muscle contract

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Lesson 2 Guided Practice

• In your group, check your diagram of the heart
  and see if you labeled all of the parts
  correctly. If some parts are incorrect, fix it.

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LESSON 3WARM-UP ACTIVITY

• ON YOUR OWN, answer the following question.
• The blood travels through the body through two
  loops. The right and left sides of the heart are
  separate pumps. Where do they pump the blood to?

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LESSON 3 Goals

• Todays goal is to understand the path of blood
  through the body.
• By the end of the period today, you will be able
  to label a diagram to demonstrate your
  understanding of the path of blood.

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The Path of Blood

• Two Types of Circulation
• 1) Pulmonary Circulation
• 2) Systemic Circulation

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Pulmonary Circulation

• Vena Cava
• Right Atrium
• Tricuspid Valve
• Right Ventricle
• Pulmonary Arteries
• Lungs
• Pulmonary Veins

Bicuspid Valve
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Systemic Circulation

• Left Atrium
• Bicuspid Valve
• Left Ventricle
• Aorta
• Smaller and Smaller Arteries
• Capillaries
• Veins
• Vena Cava

Bicuspid Valve
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Lesson 3Guided Practice

• In your group, label the chart detailing the Path
  of Blood.

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LESSON 4WARM-UP ACTIVITY

• In your group, label the functions of the Right
  Atrium, Left Atrium, Right Ventricle, and Left
  Ventricle in your packet.

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THE PATH OF BLOOD THROUGH THE BODY
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LESSON 4 Goals

• Today we will complete the following tasks
• Review the Path of Blood
• Demonstrate an understanding of the difference
  between the three types of blood vessels

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Chambers of the Heart

• Right Atrium- Receives blood from the body. The
  blood is low in oxygen and high in waste
  products.
• Right Ventricle- Pumps blood with low-oxygen to
  the lungs
• Left Atrium- Receives oxygen-rich blood from the
  lungs
• Left Ventricle- Pumps blood with high oxygen to
  all parts of the body

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Blood Vessels

• 3 Types
• Arteries
• 2) Veins
• 3) Capillaries

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Arteries

• Arteries- Blood vessels that carry blood away
  from heart
• Aorta- The largest blood vessel in the body,
  carries blood from the left ventricle to the body
• Coronary Arteries- Blood vessels that carry blood
  to the heart itself

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Pulse

• Heartbeats per minute

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Veins

• Veins- Blood vessels that carry blood back to the
  heart
• Vena Cava- Largest vein in the body, returns
  oxygen poor blood to the heart

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Capillaries

• Capillaries- Blood vessels where materials are
  exchanged between the blood and bodys cells

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Sphygmomanometer

An instrument used to measure blood pressure.
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Lesson 4Guided Practice

• EXIT SLIP
• On your note card, explain the difference between
  veins, capillaries, and arteries.
• You may not use your books or notes!

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LESSON 5WARM-UP ACTIVITY

• In your groups, answer the following questions
• What is blood pressure a measure of?
• What is normal blood pressure?
• What is a sphygmomanometer?

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LESSON 5 Goals

• Our goal today is to be able to identify and
  define the parts of blood and also some various
  diseases of the circulatory system.

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4 Components of Blood

• Plasma
• Red Blood Cells
• Platelets
• White Blood Cells

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Plasma

• Liquid Part of the Blood

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Red Blood Cells

• Take up oxygen and deliver it to cells

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White Blood Cells

• The bodys disease fighters

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Platelets

• Play an important role in blood clots.

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Lesson 5Guided Practice

• In your groups, use your book to find the
  definitions for atherosclerosis, hypertension,
  and heart attack. In addition, come up with
  three ways to prevent heart problems.
• Pages 98-102 in the book

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Bicuspid Valve