Question

Melatonin is secreted by

• A. Skin
• B. Pineal body
• C. Thyroid
• D. Pituitary gland

Answer 1

The correct option is B

Pineal body

The correct option is B.

Explanation for the correct option:

Option B:

1. Melatonin is secreted by the pineal gland and is involved in maintaining a normal sleep-wake cycle as well as body temperature etc.
2. The pineal gland is located on the dorsal side of the forebrain.
3. Thus, it is also used in medicine to treat insomnia.

Explanation for the incorrect options:

Option A:

1. Skin is one of the organs of the body.
2. They secret sweat and other toxins from the body.

Option C:

Thyroid gland releases and control thyroid hormones that control metabolism.

Option D:

The pituitary gland releases different hormones like Human growth hormone, Thyroid-stimulating hormone (TSH), Adrenocorticotrophin hormone (ATCH), and Follicle-stimulating hormone (FSH), luteinizing hormones, and prolactin.

Final answer: Melatonin is secreted by the Pineal body.