the endocrine system

• What is the primary function of hormones in the body?

  To send information around the body
• How are hormones transported in the body?

  They are carried in the blood
• What are target organs?

  Organs affected by specific hormones
• Why do hormones need constant adjustment?

  They control functions in organs and cells
• What are endocrine glands?

  Glands that produce and secrete hormones
• What system do endocrine glands make up?

  The endocrine system
• What is a characteristic of hormones regarding their effects?

  They tend to have long-lasting effects
• What is the role of the pituitary gland?

  It produces hormones that regulate body conditions
• Why is the pituitary gland called the 'master gland'?

  It directs other glands to release hormones
• What hormone does the thyroid produce?

  Thyroxine
• What functions does thyroxine regulate?

  Metabolism, heart rate, and temperature
• What hormone do ovaries produce?

  Oestrogen
• What is the role of oestrogen?

  It is involved in the menstrual cycle
• What does the adrenal gland produce?

  Adrenaline
• What is the function of adrenaline?

  To prepare the body for 'fight or flight'
• What hormone do testes produce?

  Testosterone
• What does testosterone control?

  Puberty and sperm production in males
• What hormone does the pancreas produce?

  Insulin
• What is the role of insulin?

  To regulate blood glucose levels
• What are the main endocrine glands and their functions?

  • Pituitary Gland: Regulates body conditions
  • Thyroid: Produces thyroxine for metabolism
  • Ovaries: Produce oestrogen for menstrual cycle
  • Adrenal Gland: Produces adrenaline for stress response
  • Testes: Produce testosterone for puberty
  • Pancreas: Produces insulin for blood glucose regulation
• How do hormones differ from neurotransmitters in their function?

  • Hormones: Chemical messengers in blood, long-lasting effects
  • Neurotransmitters: Chemical signals across synapses, short-term effects