1. Chapter 8
Lesson 5 The Circulatory System
Bellringer
Write as many words or phrases that describe the circulatory system as you can.
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2. Chapter 8 Objectives Trace the path of blood through the heart.
Lesson 5 The Circulatory System
Objectives
Trace the path of blood through the heart.
Explain the function of the circulatory system.
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3. Chapter 8 Start Off Write How does the body stop a cut from bleeding?
Lesson 5 The Circulatory System
Start Off Write
How does the body stop a cut from bleeding?
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4. Chapter 8 Blood Blood is made of the following things: 1. plasma
Lesson 5 The Circulatory System
Blood
Blood is made of the following things:
1. plasma
2. red blood cells
3. white blood cells
4. platelets
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5. Chapter 8 Blood continued
Lesson 5 The Circulatory System
Blood continued
Arteries Arteries carry blood away from the heart to various organs.
Veins Veins carry blood from various parts of the body back to the heart.
Capillaries Capillaries are very small tubes that connect arteries and veins. Some capillaries are so small that you need a microscope to see them.
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6. Chapter 8 Lesson 5 The Circulatory System
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7. Please insert Figure 11 from Decisions in Health, Level Green, p. 177
Chapter 8
Lesson 5 The Circulatory System
The Heart
Please insert Figure 11 from Decisions in Health, Level Green, p. 177
The heart muscle contracts to pump blood through the blood vessels.
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8. Chapter 8 Bellringer Describe the pathway of the air that you breathe.
Lesson 6 The Respiratory System
Bellringer
Describe the pathway of the air that you breathe.
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9. Chapter 8 Objectives Describe the breathing process.
Lesson 6 The Respiratory System
Objectives
Describe the breathing process.
Explain how cells exchange oxygen and carbon dioxide with the air.
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10. Chapter 8 Start Off Write
Lesson 6 The Respiratory System
Start Off Write
Why do people have trouble breathing when they have a cold?
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11. Chapter 8
Lesson 6 The Respiratory System
The Path of Air
Air enters the body through the nose and the mouth and then moves to the pharynx, or throat. The air moves through the following organs next:
1. larynx
2. trachea
3. bronchi
4. lungs
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12. Chapter 8 Lesson 6 The Respiratory System
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13. Chapter 8
Lesson 6 The Respiratory System
Gas Exchange
The Alveoli The lungs and the blood exchange oxygen and carbon dioxide in the alveoli.
The Capillaries of the Lungs The blood in the lung’s capillaries picks up oxygen from the alveoli and delivers it to the body’s cells. When the blood returns to the lungs, it brings carbon dioxide.
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14. Chapter 8 The Breathing Process
Lesson 6 The Respiratory System
The Breathing Process
Inhalation Inhalation is the process in which the air enters the lungs.
Exhalation Exhalation is the process in which the air leaves the lungs.
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15. Chapter 8
Lesson 7 The Nervous System
Bellringer
Many parts of your body take in information from your surroundings and send it to your brain for processing. List as many of these body parts as you can.
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16. Chapter 8 Objectives Describe the functions of the nervous system.
Lesson 7 The Nervous System
Objectives
Describe the functions of the nervous system.
Explain how the nervous system responds to the body’s needs.
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17. Chapter 8 Start Off Write What is a reflex reaction?
Lesson 7 The Nervous System
Start Off Write
What is a reflex reaction?
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18. Parts of the Nervous System
Chapter 8
Lesson 7 The Nervous System
Parts of the Nervous System
The Brain The major organ in the nervous system is the brain. Different parts of the brain control different body functions.
The Spinal Cord The spinal cord is an organ that carries messages to and from the brain. These messages travel through groups of nerves.
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19. Parts of the Nervous System
Chapter 8
Lesson 7 The Nervous System
Parts of the Nervous System
Nerves A nerve is a bundle of cells that conducts messages from one part of the body to another.
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20. Chapter 8 Lesson 7 The Nervous System
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21. Chapter 8 Responding to Stimuli
Lesson 7 The Nervous System
Responding to Stimuli
What Are Stimuli? Changes that cause a reaction are called stimuli. The eyes, ears, tongue, nose, and skin sense stimuli outside the body and send messages to the brain and spinal cord through nerves.
Reflexes An automatic response to stimuli is called a reflex.
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22. “The chief function of the body is to carry the brain around.”
Quote of the Day
“The chief function of the body is to carry the brain around.”
—Thomas A. Edison
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