the endocrine system

    Cards (7)

    • the endocrine system
      controls slower processes such as cell growth
    • hormones
      they are chemical messengers made in various glands of the body
      they are transported through the bloodstream
    • how does the endocrine system regulate hormones
      The hypothalamus sends a signal to the pituitary gland to prepare the release of a hormone
      The pituitary gland releases a stimulating hormone into the bloodstream
      This hormone then signals the target gland to release its hormone
      As hormone levels rise the hypothalamus stops the request to release a hormone
      The target gland slows down the release of its hormone
      The body now has the stable and correct concentration of hormone in The bloodstream
    • the hypothalamus
      found at the base of the brain near the pituitary gland
      it releases hormones and regulates body temperature.
    • pituitary gland
      it has 2 main parts posterior and anterior
      it releases a stimulating hormone to instruct other glands to release their hormone
      anterior gland releases ACTH - response to stress, and luteinising hormone and FSH which link to egg/sperm production
      posterior gland releases oxytocin - love hormone
    • adrenal glands
      adrenal cortex - releases cortisol which maintains blood pressure
      adrenal medulla - releases adrenaline for fight or flight
    • pineal gland
      small gland found in the brain
      produces melatonin - sleep hormone