Question

The Leydig cells as found in the human body are a secretory source of
A. Intestinal mucus
B. Progesterone
C. Androgens
D. Glucagon

Answer 1

Hint: The Leydig Cells found in the testis in the endocrine portion which is present in seminiferous tubule secretes male sex hormones. In the human testis, each seminiferous tubule is made up of male germ cells called spermatogonia and Sertoli cells, interstitial cells, or Leydig cells. Leydig cells synthesize the testicular hormones and secrete them too.

Complete answer:
Leydig cells, also known as interstitial cells, are found in the connective tissue present between the seminiferous tubule and a small group of rounded interstitial cells. These are present in small compartments known as testicular lobules. The function of Leydig cells is to produce testosterone (male sex hormones) in the presence of the luteinizing hormone(LH). It may be associated with FSH(follicular stimulating hormone) or LH in function as FSH promotes the production of sperm in seminiferous tubules. They release a class of hormones called androgens including testosterone, androstenedione, and they are stimulated by pituitary hormone and luteinizing hormone.
LH in males is sometimes given the name of interstitial cell-stimulating hormone (ICSH) because it controls the production of testosterone by interstitial cells. Testosterone is the main sex hormone in males and is very essential for the normal development and proper functioning of other organs. For example;, it maintains male secondary sex characteristics developed when puberty hits.
Whereas the intestinal mucus is found in the colon region of the small intestine which is impervious to bacteria; Progesterone is the female sex hormone involved in various functions like the menstrual cycle, pregnancy, etc. And glucagon is the hormone secreted by the pancreas from the alpha cells of islets of Langerhans. It maintains adequate glucose levels in plasma.

Note:
The Leydig cells secrete a class of hormones namely androgens. Leydig cells are also known as interstitial cells in testicles lobules divided into seminiferous tubules. The most active androgen is testosterone. Spermatogenesis depends on the testosterone hormone secreted by Leydig cells.