هرمونات

• Endocrine system


  Made up of glands and the hormones they secrete
• The brain, heart, lungs, liver, skin, thymus, gastrointestinal mucosa, and placenta also produce and release hormones
• Primary endocrine glands


  • Pituitary (the master gland)
  • Pineal
  • Thyroid
  • Parathyroid
  • Islets of Langerhans
  • Adrenals
  • Ovaries in the female
  • Testes in the male
• Function of the endocrine system


  Production and regulation of chemical substances called hormones
• Hormone


  A chemical transmitter released in small amounts from glands, and transported in the bloodstream to target organs or other cells
• Hormones


  Chemical messengers, transferring information and instructions from one set of cells to another
• Hormones


  • Regulate growth, development, mood, tissue function, metabolism, and sexual function
  • Hyposecretion or hypersecretion can be harmful to the body
  • Controlling production can treat many hormonal disorders
• Hypothalamus


  A collection of specialized cells located in the brain, and is the primary link between the endocrine and nervous systems
• Pituitary gland


  Has 2 lobes
• Endocrine system and nervous system


  Work together to help maintain homeostasis/balance
• The hypothalamus produces chemicals that either stimulate or suppress hormone secretions of the pituitary gland
• Endocrine system


  Made up of glands and the hormones they secrete
• The brain, heart, lungs, liver, skin, thymus, gastrointestinal mucosa, and placenta also produce and release hormones
• Primary endocrine glands

  • Pituitary (the master gland)
  • Pineal
  • Thyroid
  • Parathyroid
  • Islets of Langerhans
  • Adrenals
  • Ovaries in the female
  • Testes in the male
• Function of the endocrine system


  Production and regulation of chemical substances called hormones
• Hormone

  A chemical transmitter released in small amounts from glands, and transported in the bloodstream to target organs or other cells
• Hormones

  Chemical messengers, transferring information and instructions from one set of cells to another
• Hormones

  • Regulate growth, development, mood, tissue function, metabolism, and sexual function
• Hyposecretion or hypersecretion of any hormone can be harmful to the body
• Controlling the production of hormones can treat many hormonal disorders in the body
• Hypothalamus

  A collection of specialized cells located in the brain, and is the primary link between the endocrine and nervous systems
• Pituitary gland


  Has 2 lobes
• The endocrine system and nervous system


  Work together to help maintain homeostasis (balance)
• The hypothalamus produces chemicals that either stimulate or suppress hormone secretions of the pituitary gland