Endocrine System MCQs with Answers

Which testicular cells in a human male with high testosterone level will start the endocrine activity?

• A.Sertoli cells
• B.Spermatogonia
• C.Leydig cells
• D.Spermatocytes

The gland that serves as both exocrine and endocrine is/are?

• A.Thyroid
• B.Pituitary
• C.Pancreas
• D.Adrenal

Aromatization is related to ?

• A.Conversion of glucose to glycogen
• B.Conversion of ATP to ADP
• C.Conversion of proteins to amino acids
• D.Conversion of androgens to estrogens

The release of hormones by the pituitary gland is regulated by which of the following?

• A.Insulin and Glucagon
• B.Thyroxine and Triiodothyronine
• C.Growth Hormone-Releasing Hormone (GHRH) and Somatostatin
• D.Adrenaline and Noradrenaline

In the human body, which organ is primarily responsible for regulating blood glucose levels?

• A.Liver
• B.Pancreas
• C.Kidney
• D.Spleen

What is the main function of thyroxine in the human body?

• A.Regulates blood sugar levels
• B.Stimulates digestion of fats
• C.Maintains water balance in the body
• D.Controls physical and mental development

Hepatic and pancreatic secretions are stimulated by a hormone called _?

• A.Gastrin
• B.Cholecystokinin
• C.Secretin
• D.Insulin

What is the main function of the hormone released by the pineal gland?

• A.Regulation of blood sugar levels
• B.Regulation of sleep and wake cycles
• C.Control of body growth and development
• D.Regulation of calcium levels in blood

Which one of the following hormones is responsible for the labor pains in human female at the time of birth of baby?

• A.Estrogen
• B.Progesterone
• C.Oxytocin
• D.Prolactin

What is the thyroid gland in the human body popularly called?

• A.Pineal gland
• B.Voice box
• C.Master gland
• D.Adam's apple