5.3.1 Human Endocrine System

• How the endocrine system works:

  1. Glands are organs that release small chemicals called hormones.
  2. These chemicals are normally released into the bloodstream, allowing them to travel around the body.
  3. They can then bind to specific cells that have the correct receptors. 
  4. This will bring about some change within the cells.
• True or false? A hormone can only stimulate specific types of cells.

  True.
• True or false? Different glands release different hormones.

  True.
• What is the pituitary gland commonly referred to as and what does it do?

  The master gland: it secretes multiple hormones into the bloodstream in response to body conditions. These hormones control what other glands do.
• Compare the effects of the endocrine system with the nervous system.

  The endocrine system’s effects are slower but act for longer.
• Which organ is insulin released from?

  Pancreas.
• Which organ is testosterone released from?

  Testes.
• Which number is the pituitary gland?

  1.

  
• Which number is the thyroid?

  2.

  
• Which number is the pancreas?

  3.

  
• Which number is the adrenal gland?

  4.

  
• Which number is the testes?

  5.