Hormones and Negative Feedback Systems

• What is one way to send information around the body apart from using nerves?

  Using hormones
• What are hormones?

  • Chemical messengers
  • Produced in endocrine glands
  • Sent in the blood
• Where are hormones produced?

  In various glands called endocrine glands
• What system do endocrine glands make up?

  The endocrine system
• How are hormones released into the body?

  They are released directly into the blood
• What carries hormones to different parts of the body?

  The blood
• What are the affected cells that respond to hormones called?

  Target cells
• What is a target organ?

  An organ that contains target cells
• What hormone prepares you for "fight or flight"?

  Adrenaline
• Which glands release adrenaline?

  The adrenal glands