A primary response by the Leydig cells in the testes to the presence of luteinizing hormone is an increase in the synthesis and secretion of ________.

Question

Quizplus · Accepted Answer

Luteinizing hormone stimulates the Leydig cells to increase the synthesis and secretion of testosterone, which is necessary for spermatogenesis and male secondary sex characteristics. Inhibin is secreted by Sertoli cells and regulates the production of follicle-stimulating hormone (FSH) in a negative feedback loop. Oxytocin is produced by the hypothalamus and released by the posterior pituitary gland to stimulate uterine contractions during labor and milk ejection during breastfeeding. Progesterone is primarily produced by the corpus luteum of the ovary and is important for pregnancy maintenance.

A Primary Response by the Leydig Cells in the Testes