5.3.1 The Endocrine System

• The endocrine system is a network of endocrine glands
• What are the hormones produced by the pituitary gland?

  Growth hormone, prolactin
• The adrenal gland produces adrenaline and cortisol.

  True
• Steps in hormone action:

  1️⃣ Hormone is produced by an endocrine gland

  2️⃣ Hormone travels through the bloodstream

  3️⃣ Hormone binds to receptors on target cells

  4️⃣ Target cells respond to the hormone
• What hormone regulates male sexual characteristics?

  Testosterone
• Which gland produces growth hormone and prolactin?

  Pituitary
• Which hormone is produced by the pituitary gland?

  Growth hormone
• Match the hormone with its function:

  Insulin ↔️ Blood glucose regulation

  Estrogen ↔️ Female reproductive functions

  Testosterone ↔️ Male sexual characteristics

  Adrenaline ↔️ Stress response
• Which hormone is produced by the ovaries?

  Estrogen
• Which gland regulates metabolism through the hormone thyroxine?

  Thyroid
• Which hormone stimulates growth and development?

  Growth hormone
• What is an example of a water-soluble hormone?

  Insulin
• Which feedback mechanism is responsible for oxytocin release during childbirth?

  Positive
• Match the feedback mechanism with its action:

  Positive Feedback ↔️ Enhances the stimulus

  Negative Feedback ↔️ Reduces the stimulus
• The endocrine system's response is faster than the nervous system's response.

  False
• The thyroid gland produces the hormone thyroxine
• Match the hormone with its function:

  Growth Hormone ↔️ Stimulates growth and development

  Thyroxine ↔️ Regulates metabolism

  Insulin ↔️ Maintains blood glucose levels
• Estrogen and progesterone regulate the female reproductive cycle
• Hormones maintain homeostasis by triggering specific physiological responses.


  True
• The thyroid gland produces the hormone thyroxine
• The thyroid gland produces the hormone called thyroxine
• The pancreas produces insulin and glucagon.


  True
• Hormones are chemical messengers produced by endocrine glands.
• Lipid-soluble hormones are transported through the bloodstream bound to proteins.


  True
• Positive feedback enhances the stimulus until an external event stops it.
• Negative feedback reduces the stimulus and restores hormone levels to normal.

  True
• What is an example of positive feedback in the body?

  Childbirth