endocrine system

• the endocrine system

  • a set of glands that release hormones
  • controlled by the hypothalamus
• hormones

  chemical messengers that travel in the blood to the target organs
• pineal gland

  releases melatonin
• pituitary gland

  master gland
• thyroid gland

  releases thyroxine
• adrenal gland

  releases adrenaline
• pancreas

  releases insulin
• ovaries

  release oestrogen
• testes

  release testosterone