Answer: Adrenaline, also called epinephrine.
- A Cortisol, from the adrenal cortex
- B Adrenaline, also called epinephrine
- C Aldosterone, from the outer cortex region
- D Thyroxine, from the thyroid gland
Correct answer: B. Adrenaline, also called epinephrine
Explanation: The adrenal medulla secretes adrenaline and noradrenaline, hormones that prepare the body for stress (the 'fight or flight' response).
The hypothalamus releases hormones that direct the pituitary, which releases its own trophic hormone to a target gland; that gland's hormone output then feeds back (dashed lines) to suppress both the pituitary and hypothalamus once levels are sufficient - a self-correcting loop running the entire endocrine system.
Concept context
The endocrine glands, hormone classification and mechanism of action, and negative feedback regulation.