The release of hormones from this area involves a portal system. No neuronal cell bodies are present. It releases a factor that stimulates release of thyroid hormone from the thyroid gland. It is derived from neural ectoderm. Varicocele is dilation of the veins of the pampiniform plexus that causes infertility in the male.
Endometriosis is a condition that causes male infertility.
In cryptorchidism, the male is infertile because of the lack of seminal vesicles and vas deferens. In cryptorchidism, the secondary male characteristic will not develop because the synthesis of testosterone is not normal. Juxtaglomerular cells Simple columnar epithelial cells of papillary ducts 60. Line glomerular capillaries.