Question

Choose the correct hormone and its source.

• A. Heart - Secretin
• B. GI tract - Pepsin
• C. Kidney - Erythropoietin
• D. Lungs - ANF

Answer 1

The correct option is C Kidney - Erythropoietin

Hormones are secreted by some tissues which are not endocrine glands. Heart, kidneys and gastrointestinal (GI) tract have some tissues which secrete hormones.
Atrial natriuretic factor (ANF) is peptide hormone secreted by the atrial wall of the heart.
Secretin hormone is secreted by endocrine cells of gastrointestinal tract. Pepsin is an enzyme secreted by peptic cells in the stomach.
Erythropoietin is a peptide hormone secreted by the juxtaglomerular cells of the kidney. It stimulates the process of RBC (red blood cells) synthesis called erythropoiesis.