Which hormone is most associated with the body's stress response?
Cortisol
In stress, the hypothalamic–pituitary–adrenal axis is activated: CRH from the hypothalamus triggers ACTH from the pituitary, which makes the adrenal cortex release cortisol, the main stress hormone.
Cortisol raises blood glucose, mobilises energy and suppresses inflammation.
Serotonin regulates mood, insulin lowers blood glucose, and melatonin controls the sleep–wake cycle.
Hence, Cortisol.
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Important Questions from Physiology
If a person touches a hot surface and quickly pulls their hand away, which type of nerves are primarily responsible for sending the signal to move the hand?
What is the primary function of the baroreceptors located in the carotid sinus and aortic arch?
During the menstrual cycle, what typically occurs when estrogen and progesterone levels drop at the end of the cycle?
Which of the following organs play(s) the primary role in maintaining fluid and electrolyte balance in the human body?
What is the primary function of alveoli in the lungs?
