Endocrine System

• Works alongside the nervous system, it is a network of glands across the body that secrete chemical messages called hormones, instead of using nerves ( sensory and motor neurons ) to transmit information, this system uses blood vessels, different hormones produce different effects ( behaviours ).
• Hypothalamus

   Stimulates and controls the release of hormones from the pituitary gland
• Adrenal Gland

  Adrenal Medulla = adrenaline and noradrenaline

  Adrenal Cortex = releases cortisol

  Key hormone in fight or flight response

  Stimulates release of glucose to provide the body with energy, while suppressing the immune system.
• Ovaries

  Release oestrogen

  Controls the regulation of the female reproductive system, including the menstrual cycle and pregnancy
• Thyroid Gland

  Releases thyroxine

  Responsible for regulating metabolism
• Pituitary Gland

  Anterior lobe = ACTH which stimulates the adrenal cortex and the release of cortisol, during stress response.

  Posterior lobe = oxytocin which is responsible for uterus contractions during childbirth

  Hormones released by this gland control and stimulate the release of hormones from the other glands
• Hypothalamus: Stimulates and controls release of hormones from the pituitary gland
• Pituitary gland: Anterior Lobe = ACTH which stimulates the adrenal cortex and release of cortisol, during stress response

  Posterior lobe = oxytocin which is responsible for uterus contractions during childbirth

  Hormones released by this gland control and stimulate the release of hormones from the other glands.
• Adrenal gland: Medulla = nor/adrenaline

  Cortex = cortisol

  Fight or flight

  Stimulates release of glucose to provide body with energy, while suppressing the immune system
• Ovaries: oestrogen, Controls regulation of female reproductive system - menstrual cycle and pregnancy
• thyroid gland: thyroxine, Responsible for regulating metabolism