Which of the following hormones is secreted by the adrenal medulla and plays a key role in the 'fight or flight' response?

A Aldosterone
B Cortisol
C Epinephrine (Adrenaline) ✓
D Thyroxine

Explanation

Epinephrine (Adrenaline) is secreted by the adrenal medulla and plays a crucial role in the 'fight or flight' response, preparing the body to respond to stress.

Source

Berne and Levy Physiology
Hormones and Endocrine Markers Endocrinology Adrenal Gland Hormones Medium MEDICAL Confidence: high