Describe the production sites of key hormones and explain their transport mechanism from endocrine glands (including the pituitary gland, thyroid gland, pancreas, adrenal glands, ovaries, and testes) to specific target organs.
Explain the physiological role of adrenalin in preparing the body for a 'fight or flight' response, including its effects on heart rate, blood pressure, muscle blood flow, and the stimulation of liver glycogen conversion.
Explain how the hormone thyroxine regulates the body's baseline metabolic rate, illustrating this process as a classic example of a negative feedback mechanism involving the hypothalamus and pituitary gland.