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Human body system by hardik

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Human body system by hardik

  1. 1. Human Body Systems A Presentation By Hardik XF
  2. 2. Human Body Systems Section 35–1 This section describes human organ systems and explains how the body maintains homeostasis.
  3. 3. Organization of the Body• List the levels of organization in a multicellular organism, from smallest to largest. – Cells – Tissues – Organs – Organ systems
  4. 4. Coordinates the body’s response to changes in itsNervous system internal and external environments Stores mineral reserves and provides a site forSkeletal system blood cell formationIntegumentary system Serves as a barrier against infection and injuryEndocrine system Eliminates wastes and maintains homeostasisLymphatic/Immune systems Helps protect body from disease. Helps produce voluntary movement, circulateMuscular system blood, and move foodReproductive system Produces reproductive cellsRespiratory system Provides oxygen and removes carbon dioxideExcretory system Eliminates wastes and maintains homeostasis Brings materials to cells, fights infection, and helpsCirculatory system to regulate body temperatureDigestive system Converts food so it can be used by cells
  5. 5. Organization of the Body• What are four types of tissues found in the human body• The four types of tissues are • muscle tissue, • epithelial tissue, • connective tissue, • nervous tissue
  6. 6. Organization of the Body• The eye is an example of a (an) ____.•organ
  7. 7. Organization of the Body Circle the letter of the type of tissue that covers interior and exterior body surfaces.• epithelial
  8. 8. Organization of the BodyWhat is a gland?• A gland is a structure that makes and secretes a particular product such as saliva, sweat, or milk.
  9. 9. Organization of the Body• Circle the letter of the type of tissue that connects body parts.• connective
  10. 10. Maintaining Homeostasis• The process of maintaining a controlled, stable internal environment is called• homeostasis
  11. 11. Maintaining Homeostasis• The process in which a stimulus produces a response that opposes the original stimulus is referred to as________.• feedback inhibition
  12. 12. Maintaining Homeostasis • Fill in the missing labels in the diagram to show how a thermostat uses feedback inhibition to maintain a stable temperature in a house.
  13. 13. Maintaining Homeostasis• Is the following sentence true or false?• The part of the brain that monitors and controls body temperature is the hypothalamus.• true
  14. 14. Maintaining Homeostasis• What happens if nerve cells sense that the core body temperature has dropped below 37°C?• The hypothalamus produces chemicals that signal cells throughout the body to speed up their activities, which causes a gradual rise in body temperature.
  15. 15. Maintaining Homeostasis• What happens if the body temperature rises too far above 37°C?• The hypothalamus slows down cellular activities, minimizing the production of heat.