The%20Health%20of%20the%20body%20depends%20on%20the%20health%20of%20its%20interdependent%20systems - PowerPoint PPT Presentation

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Title: The%20Health%20of%20the%20body%20depends%20on%20the%20health%20of%20its%20interdependent%20systems


1
The Health of the body depends on the health of
its interdependent systems
2
How are body systems connected?
  • Review
  • All cells of the body have the same basic need
    for energy, nutrients and oxygen to carry our
    their functions. All cells also need to remove
    wastes. Body systems work together to provide
    cells with what they need.

3
  • Energy all cells need energy to carry out their
    life functions and food is the source of energy.
  • When you eat your body breaks food down into
    nutrients, which include carbohydrates, fats and
    proteins. These all can be broken down into
    energy, but the main source for energy are
    carbohydrates, and we typically get carbohydrates
    in the form of sugar or glucose.

4
Cellular Respiration(not just breathing!)
5
Organ systems and Cellular Respiration
  • There are 4 organ systems that are involved in
    cellular respiration can you guess which ones?
  • 1. Reparatory System
  • 2. Digestive System
  • 3. Circulatory System
  • 4. Excretory System

6
Respiratory System
  • Nose Takes in oxygen rich air
  • Windpipe Directs oxygen-rich air to lungs.
  • Lungs Exchange oxygen and carbon dioxide, and
    remove carbon dioxide through the nose

7
Circulatory System
  • Heart pumps blood
  • Veins transports blood from body cells
  • Arteries transports blood to body cells

8
Digestive System
  • Mouth grinds up food
  • Esophagus moves food to stomach
  • Stomach breaks down and churns food
  • Small Intestine breaks food down into nutrients
    so they can be absorbed
  • Large intestine processes solid waste material
  • Anus removes solid waste material

9
Excretory System
  • Kidneys filters blood to produce urine
  • Ureters transports urine
  • Bladder stores urine
  • Urethra Excretes urine

10
Its all connected
  • Activity
  • Questions 1-4, page 441

11
Core Lab 12-1B
  • Perform Lab 12-1B found on page 442

12
Body Systems and Health
  • Class Discussion
  • What helps our body to be healthy and what makes
    us unhealthy?
  • Specifically, what will help certain body systems?

13
Body Systems and Health
  • Review All body systems work together. If one
    system is not functioning properly then the whole
    network of systems is disrupted. The same goes
    for maintaining the health of each body system
    ensures the health of the whole body.
  • Diet, exercise and stress affect the health of
    body systems

14
Blood Pressure and the Health of the circulator
system
  • Heart Rate A fast beating heart pushes blood
    quickly through the arteries, building up blood
    pressure.

15
Blood Pressure continued
  • Artery Size
  • Large, open arteries conduct larger volumes of
    blood, which produces low blood pressure
  • Small , narrow or partly clogged arteries conduct
    smaller volumes of blood, which produces high
    blood pressure

16
Healthy vs. Unhealthyyou be the judge
17
Blood Pressure continued
  • Artery elasticity Flexible arteries can expand
    easily, letting more blood flow through. Loss of
    elasticity results in hardening of the
    arteries, this conditions produces higher blood
    pressure.
  • Blood Viscosity ( low ability to flow) The heart
    must work harder if blood viscosity id greater
    than normal, which can happen when the number of
    blood cells increases due to illness or injury.

18
Blood Pressure continued
  • Blood Volume If a person looses lots of blood
    due to injury, their blood pressure will be low
  • Note the average adult has 5L of blood, that is
    about 8-9 coke bottles

19
Factors that affect blood pressure
  • There are a variety of things that can affect
    blood pressure. Can you name 3 things that will
    negatively affect blood pressure?
  • Here are 3 common factors
  • Cigarette smoking
  • High Fat diet
  • Lack of regular exercise

20
Body Systems in Balance
  • As your external environment (outside your body)
    changes around you, your internal environment
    (inside your body) is able to maintain proper
    internal conditions that your cells require, this
    balance is called homeostasis.
  • All the body systems work together to achieve
    homeostasis.

21
What Affects Homeostasis
  • There are two types of factors that effect
    homeostasis.
  • Genetic Factors There are things that you
    inherit from one or both parents
  • Lifestyle Factors These are factors that are
    within your control. (Eg. Exercise, diet, stress)

22
Diet and Nutrition, Exercise and Stress
  • What effect do the above factors have on the
    reparatory, circulatory, muscular, digestive,
    excretory and nervous systems?
  • Discuss and then complete activity

23
Activity
  • Group Work
  • Learn about the four factors mentioned before.
    Present information on the four factors and the
    information that was found.
  • Discuss the other factors that are listed on page
    449.

24
What is healthy?
  • Over the past few decades there has been lots of
    research on what is most healthy and many ideas
    have come and gone.
  • Here are some examples
  • Butter vs. Margarine
  • Fad Diets
  • Limited number of heart beats in one life
  • Do you know of any other old views of what is
    healthy?

25
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26
Technology in support of Homeostasis
  • Technology can be used to support or even replace
    the function of an organ or a body system.

27
  • A pacemaker, helps the heart to beat with a
    steady rhythm

28
  • An insulin pump is a device that is programmed to
    deliver a specific dose of insulin a specific
    times in the day.

29
  • The Jarvik-7 is an artificial heat, they are
    sometimes used because there are not enough
    donors of human hearts.

30
  • Kidney Dialysis is used when the kidney no longer
    function.

31
Class Discussion
  • Group work!
  • Within your group, answer the following
    questions. Make sure you select someone to
  • (1) Record
  • (2) Keep track of time
  • (3) Ask any questions that you have
  • (4) Report back to the class

32
Questions
  • Check your Understanding
  • Page 457
  • Checking Concepts 1-6
  • Understanding Key Ideas 7-9

33
Quiz!
  • Study for you quiz on Chapter 12!
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