testistruktuuri
Testistruktuuri refers to the anatomical organization of the testes, the primary male reproductive organs. Within the scrotum, each testis is a roughly oval-shaped gland responsible for producing sperm and male hormones, primarily testosterone. The outer layer of the testis is a tough, fibrous capsule called the tunica albuginea, which provides structural support. Internally, the testis is divided into numerous lobules by septa extending from the tunica albuginea. Each lobule contains tightly coiled seminiferous tubules. These tubules are the site of spermatogenesis, the process of sperm production. The walls of the seminiferous tubules are lined with germ cells and Sertoli cells, which nourish and support the developing sperm. Between the seminiferous tubules are interstitial cells, also known as Leydig cells, which are responsible for producing testosterone. The seminiferous tubules converge at the rete testis, a network of tubules located within the testis. From the rete testis, sperm pass into the epididymis, a coiled tube attached to the posterior side of the testis, where they mature and are stored. The overall testistruktuuri is a highly specialized system designed for efficient gamete and hormone production.