Question

Which of these hormones are not secreted by an endocrine gland?

• A. ADH
• B. PTH
• C. T${}_4$
• D. ANF

Answer 1

The correct option is D ANF

A. ADH (Antidiuretic hormone) is secreted from posterior lobe of pituitary gland.

B. PTH (Parathormone) is secreted from parathyroid gland.

C. T4 or tetraiodothyronine is thyroxine hormone which is secreted from thyroid gland.

D. ANF (Atrial natriuretic factor) is a peptide hormone secreted from heart.

Endocrine glands are ductless glands which secrete hormones into blood stream. Heart is not an endocrine gland.

So, the correct answer is 'ANF'.