Question

The secretion of which of these hormones is raised during stressful situations?

• A. ACTH
• B. Melatonin
• C. MSH
• D. TSH

Answer 1

The correct option is A

ACTH

The correct option is A.

The explanation for the correct option:

1. The anterior pituitary gland produces and secretes a polypeptide hormone called adrenocorticotropic hormone.
2. Another hormone called cortisol is produced under the direction of ACTH.
3. The adrenal glands, two tiny glands positioned above the kidneys, produce cortisol.
4. Every organ and tissue in our body is impacted by cortisol.
5. It regulates our body's response to stress, among other crucial functions. assisting in regulating our body's metabolism
6. Our ability to react to stress is significantly aided by cortisol.

The explanation for the incorrect options:
Option B:

1. Melatonin is naturally found in both plants and mammals.
2. It has been linked to the regulation of the sleep-wake cycle and is primarily known in animals as a hormone secreted at night by the pineal gland in the brain.

Option C:

1. MSH, also known as alpha-melanotropin, is a hormone that can play a variety of different physiological roles.
2. MSH increases melanogenesis in both healthy and malignant (melanoma) epidermal melanocytes, as well as the rapid translocation of melanosomes (melanin granules) in dermal melanophores to produce a rapid color change.

Option D:

The thyroid gland produces thyroxine and triiodothyronine as a result of the pituitary hormone thyroid-stimulating hormone, which in turn increases the metabolism of nearly all bodily tissues.

Final answer: The secretion of ACTH hormones is raised during stressful situations.