1. Fluids, Pressure, and Circulation
CHAPTER
Fluids, Pressure, and Circulation
NEW CHAPTER
the BIG idea
The body uses fluid pressure in many ways.
11.1
Fluids spread force over an area.
11.2
The heart procedures blood pressure.
11.3
Fluid pressure affects the body in different ways.
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2. Fluids spread force over an area.
11.1
Fluids spread force over an area.
CALIFORNIA
Content Standards
7.5.b Students know organ systems function because of the contributions of individual organs, tissues, and cells. The failure of any part can affect the entire system.
7.6.j Students know that contractions of the heart generate blood pressure and that heart valves prevent backflow of blood in the circulatory system.
fluid
pressure
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OUTLINE

3. Fluids spread force over an area.
11.1
Fluids spread force over an area.
Fluids push in all directions.
Pressure on a fluid can transfer a force to a different location, spread out a force, and cause the fluid to move.
fluid
pressure
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OUTLINE

4. Fluids spread force over an area.
11.1
Fluids spread force over an area.
Fluids push in all directions.
Pressure on a fluid can transfer a force to a different location, spread out a force, and cause the fluid to move.
fluid
pressure
VISUALIZATION
See how your diaphragm helps your lungs change volume.
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OUTLINE

5. The heart produces blood pressure.
11.2
The heart produces blood pressure.
CALIFORNIA
Content Standards
7.5.a Students know plants and animals have levels of organization for structure and function, including cells, tissues, organs, organ systems, and the whole organism.
7.5.b Students know organ systems function because of the contributions of individual organs, tissues, and cells. The failure of any part can affect the entire system.
7.6.j Students know that contractions of the heart generate blood pressure and that heart valves prevent backflow of blood in the circulatory system.
circulatory system
artery
vein
capillary
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OUTLINE

6. The heart produces blood pressure.
11.2
The heart produces blood pressure.
The heart acts as two pumps that produce pressure.
circulatory system
Blood flows from the heart through arteries, capillaries, veins, and then back to the heart.
The left side
pumps blood
through the
body in the
systemic circuit.
artery
vein
capillary
The right side pumps
blood through the lungs
in the pulmonary circuit.
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OUTLINE

7. The heart produces blood pressure.
11.2
The heart produces blood pressure.
The heart acts as two pumps that produce pressure.
circulatory system
Blood flows from the heart through arteries, capillaries, veins, and then back to the heart.
artery
vein
capillary
VISUALIZATION
Learn about how the heart pumps.
CHAPTER
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OUTLINE

8. Fluid pressure affects the body in different ways.
11.3
Fluid pressure affects the body in different ways.
CALIFORNIA
Content Standards
7.5.g Students know how to relate the structures of the eye and ear to their functions.
7.5.b Students know organ systems function because of the contributions of individual organs, tissues, and cells. The failure of any part can affect the entire system.
mucus
semicircular canals
CHAPTER
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OUTLINE

9. Fluid pressure affects the body in different ways.
11.3
Fluid pressure affects the body in different ways.
Fluids serve one or more purposes in all major organ systems. Fluids divert and spread forces, support, transport materials, lubricate, and block materials.
mucus
semicircular canals
The motion of fluids in the ear gives you a sense of balance.
tilt
nod
turn
CHAPTER
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OUTLINE

10. 11.1 Fluids spread force over an area.
I. Fluids spread force over an area.
fluid
A. Fluids are part of your body.
pressure
B. Fluids push in all directions.
C. Pressure is force divided by area.
D. Fluids both move and transfer forces.
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KEY CONCEPT
SUMMARY

11. The heart produces blood pressure.
11.2
The heart produces blood pressure.
II. The heart produces blood pressure.
circulatory system
A. Blood is a fluid that circulates in the body.
artery
B. Blood exerts pressure on blood vessels.
vein
1. Arteries
capillary
2. Capillaries
3. Veins
C. The heart pumps blood through the body.
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KEY CONCEPT
SUMMARY

12. Fluid pressure affects the body in different ways.
11.3
Fluid pressure affects the body in different ways.
III. Fluid pressure affects the body in different ways.
mucus
A. Fluids serve several functions in the body.
semicircular canals
B. The senses make use of fluids.
1. The Ear
2. The Eye
C. Organ systems use different types of fluids.
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SUMMARY

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