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SystemFunction (what it does) Organs (tissues together that perform a specific function) PictureHomeostasis (The body’s way of regulating equilibrium –

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Presentation on theme: "SystemFunction (what it does) Organs (tissues together that perform a specific function) PictureHomeostasis (The body’s way of regulating equilibrium –"— Presentation transcript:

1 SystemFunction (what it does) Organs (tissues together that perform a specific function) PictureHomeostasis (The body’s way of regulating equilibrium – staying balanced)

2 Controls thinking, senses, & regulates homeostasis Brain and spinal cord, sensory organs and nerves Nervous System FunctionsOrgansPictureHomeostasis S: A person touches a hot stove. R: A person’s body sends a message to move their hand.

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4 Slap Jack Play slap jack 3 times with your partner. Break the stack of cards in half each person turns over a card and puts it in a pile between the two players, when a jack card turns up be the fastest player to slap the jack. Then take the cards under the jack, the player with the most cards at the end wins. 1.What major organs of the nervous system did you use to play? 2.What function(s) of the nervous system did you use? 3.How are your reflexes and the nervous system connected? 4.What are the levels of organization specific to the nervous system? 5.What is the stimulus and response to playing Slap Jack?

5 Regulates body temperature, sensory response, rids body of waste and protection Skin, sweat glands, & hair Integumentary (Skin) System S: A person walks outside while it is snowing wearing shorts. R: A person get chill bumps and begins to shiver.

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7 Helps body stay healthy by fighting of germs, diseases, and micro- organisms Lymph glands, vessels, and fluid Lymphatic (Immune) System S : A germ is swallowed when a person eats with dirty hands. R: A person’s temperature increases and then vomits.

8 Breaks down food and absorbs nutrients the body needs Mouth, esophagus, stomach, small intestine, large intestine, and anus Digestive System S : A person eats a candy bar. R:The intestines break down the candy bar and absorb nutrients.

9 Balance fluid levels in the body Kidney, bladder, ureters, urethra Urinary System S : A person’s body has elevated levels of fluid. R:A person’s bladder fills up.

10 Rids the body of waste Integumentary, digestive, respiratory,& urinary Excretory System S : A person’s body has a large amount of waste collecting in the large intestines. R: A person has to go to the restroom.

11 Move (transports) materials (O 2, nutrients, CO 2, waste-urea, hormones) around the body Heart, blood, and blood vessels (veins, arteries, capillaries) Circulatory System Blood pressure – force blood exerts on walls of veins S:Plaque begins to stick to artery walls, narrowing the vessel. R:Blood pressure increases.

12 1.What does the pipette, the water, and balloon represent in this model of the circulatory system? 2.The action of applying pressure to and releasing pressure from the pipette demonstrates what function of the circulatory system? 3.What is a limitation of using this model as opposed to the human body? 4.Place a bean in the balloon, what does the bean represent? 5.What would happen if you squeezed water through the pipette leaving the bean in the balloon, how would the experiment be different?

13 Reinforcement: 1.In your own words write the function for the circulatory system. 2.Rank the three main structures of the circulatory system and give the reason for your rankings. 3.While running outside you stop to rest at a park bench, what happens to your heart rate while you are resting on the bench? 4.Using the scenario above how would the heart rates be different if we compared the rates of a 300 lb. woman to a 140 lb. woman? Explain your answer.

14 Breathing (Inhale – oxygen, O 2 ; exhale – carbon dioxide, CO 2 ) Nasal cavity, trachea, bronchi, lungs, alveoli, diaphragm Respiratory System S : A person visits a mountain so high that the air is very thin. R:A person must increase the breathing rate to sustain normal oxygen levels.

15 Nasal cavity Bronchioles Diaphragm

16 Lung Capacity 1.What are the independent and dependent variables used when finding lung capacity? 2.What type of graph would you create to show the collected data? 3.Put in your own words the meaning of lung capacity. 4.Why would it be important for someone to know there lung capacity?

17 Structure, support, protection, stores calcium and aids in movement Bones, cartilage, & ligaments Skeletal System S: A person is hit in the chest.. R: The person’s internal organs are not hurt.

18 Shape & aids in movement Muscles and tendons Muscular System S: A football is thrown to a wide receiver.. R: The receiver raises his hands and catches the ball.

19 Secretes hormones & regulates body growth Glands: adrenal, thyroid, pancreas Endocrine System S: A person has just been confronted with a grizzly bear. R: A person secretes adrenaline to enact the fight or flight response.

20 Reproduce /survive Ovaries (egg), testes (sperm), vagina, & penis Reproductive System S: An egg has reached the uterus and has not been fertilized.. R: A female begins her period.


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