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Body Systems Homeostasis: Functions and Structures

Explore the key systems of the human body, their functions, structures, and role in maintaining homeostasis. Learn about the nervous, integumentary, circulatory, respiratory, skeletal, muscular, lymphatic, digestive, urinary, excretory, and endocrine systems. Includes interactive examples and demonstrations!

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Body Systems Homeostasis: Functions and Structures

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  1. 10/7 Warm-up • Turn to a new page and copy the definitions below. • Homeostasis: process of maintaining balance (equilibrium) inside the body. • Stimuli – something that causes a response • Response – effect of stimuli

  2. Nervous System Function: Controls thinkingand sends messages throughout body.

  3. Nervous System Structure: brain, spinal cord, nerves, and sensory organs.

  4. Nervous System Homeostasis: • S: A person touches a hot stove. • R: A person’s body sends a message to move their hand. http://www.youtube.com/watch?v=x4PPZCLnVkA http://www.youtube.com/watch?v=aboVLnsCH44

  5. Integumentary System(SKIN) Function: Regulates body temperature, sensory response, rids body of waste and protection.

  6. Integumentary System(SKIN) Structure: Skin and sweat glands, Hair, Nails.

  7. Integumentary System(SKIN) S: A person walks outside while it is snowing wearing shorts. R: A person get chill bumps and begins to shiver. http://www.brainpop.com/health/bodysystems/skin/

  8. 10/8 WarmUp • If George made a model of the human eye, what system would he be making a model for? • The _______is to the cell; like Integumentary system is to the body. • What is an example of something that keeps homeostasis in your house?

  9. Circulatory System Function: Transports materials around body

  10. Circulatory System Major Parts: • Heart • Blood vessels (veins, arteries, capillaries) • blood

  11. Circulatory System Homeostasis: S:Plaque begins to stick to artery walls, narrowing the vessel. R:Blood pressure increases.

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

  13. Respiratory System Function: Supplies body with oxygen by breathing. Gets rid of carbon dioxide.

  14. Respiratory System Major Parts: • Nasal cavity • Trachea • Bronchi • Lungs • Alveoli • Diaphragm

  15. Respiratory System Homeostasis: 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.

  16. 10/9 Warm-Up: grab the half sheet of paper from the front table by the human body model.

  17. Skeletal System Function: • Structure • Support • Protection • stores calcium • makes red blood cells • aids in movement

  18. Skeletal System Major Parts: • Bones • Joints • Cartilage • ligaments

  19. Skeletal System Homeostasis: S: A person is hit in the chest.. R: The person’s internal organs are not hurt. http://www.youtube.com/watch?v=J8x6tZI2hVI

  20. Muscular System Function: Gives body shape and aids in movement.

  21. Muscular System Major Parts: Muscles and tendons

  22. Muscular System Homeostasis: S: A football is thrown to a wide receiver.. R: The receiver raises his hands and catches the ball. https://www.youtube.com/watch?v=JMCPBuSjMfY

  23. Lymphatic System(Immune) Function: Helps body stay healthy by fighting off germs, diseases, & micro-organisms.

  24. Lymphatic System(Immune) Major Organs: • Lymph Nodes • Spleen • Tonsils

  25. Lymphatic System(Immune) Homeostasis: S: A germ is swallowed when a person eats with dirty hands. R: A person’s temperature increases and then vomits.

  26. Back of warm-up paper (Exit Paper) • ________ is to the cell as the nervous is to the body. • What is the main function of the circulatory system? • List the parts of the Integumentary system. • What is the main function of the respiratory system? • Of the systems we have gone over, which is your favorite? Why? • Which two systems provide oxygen to body cells?

  27. Digestive System Function: Break down food and absorb nutrients the body needs.

  28. Digestive System Major Organs: • Mouth • Esophagus • Stomach • Small intestine • Large intestine • Anus

  29. Digestive System Homeostasis: S: A person eats a candy bar. R:The intestines break down the candy bar and absorb nutrients.

  30. Urinary System Function: • Balance fluid levels • Rids the body of liquid waste • Filters the blood

  31. Urinary System Major Organs: • Kidney • Bladder • Ureters • Urethra

  32. Urinary System Homeostasis: S: A person’s body has elevated levels of fluid. R:A person’s bladder fills up.

  33. Excretory System Function: Rids the body of waste.

  34. Excretory System Major Organs: • Integumentary (sweat) • Digestive (poop) • Respiratory (exhale carbon dioxide) • Urinary (pee)

  35. Excretory System Homeostasis: 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.

  36. Endocrine System Function: Secretes hormones Regulates body growth

  37. Endocrine System Structures: Glands (Adrenal flight or fight)

  38. Endocrine System Homeostasis: S: A person has just been confronted with a grizzly bear. R: A person secretes adrenaline to enact the fight or flight response. https://www.youtube.com/watch?v=gH8dGK7s6lY

  39. Reproductive System Function: reproduce / survive

  40. Reproductive System Structure: • Ovaries (eggs) and Vagina • Testes (sperm) and Penis

  41. Reproductive System Homeostasis: S: An egg has reached the uterus and has not been fertilized.. R: A female begins her period. https://www.youtube.com/watch?v=31b_70kzfwQ http://www.brainpop.com/health/bodysystems/reproductivesystem/

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