What is the primary function of the hormone adrenaline in the body?

A To regulate blood sugar levels
B To stimulate the release of insulin
C To prepare the body for 'fight or flight' response ✓
D To suppress the immune system

Explanation

Adrenaline, also known as epinephrine, is a hormone released by the adrenal glands in response to stress. It prepares the body for 'fight or flight' by increasing heart rate, blood pressure, and energy supplies.

Mnemonic

Adrenaline = 'Add' energy to the body

Source

Guyton and Hall Textbook of Medical Physiology
Hormones and Endocrine Markers Endocrinology Adrenergic Hormones Easy MEDICAL Confidence: high