Endocrine system

• Homeostasis- The maintenance of constant internal environment.

  Hormones- chemical messengers that are carried in the bloodstream to their target organ.
• -Pituitary gland produce FSH and LH.

  -Thyroid gland produces thyroxine.(controls the rate of metabolism)

  -Adrenal gland produces adrenaline.(increases sugar and heart rate and diverts blood to muscle and brain)

  -Pancreas produces insulin.(controls blood sugar level)

  -Ovary produces progesterone and oestrogen.(changes in puberty and helps control menstrual cycle)

  -Testicles produce testerone.(changes at puberty/stimulates sperm production)