Filtering the blood is the primary function of the kidney. Every day the kidneys process about 200 quarts (190 liters) of blood and filters out about 2 quarts of waste products and extra water.To effectively handle this volume of blood, the kidneys are equipped with lots of blood vessels.his is an extremely important kidney function, since toxic build-up of nitrogenous wastes in the body can lead to life-threatening diseases and eventually death. While filtering the blood is an essential kidney function, the kidneys do much more than this.
Spermatogeneis is the process of sperm production and involves several steps that leads to the differentiation of cells into functioning sperm cells (spermatozoa). The process occurs in the seminiferous tubules of the testes (testicles). Sperm should be differentiated from the semen which is ejaculated with sexual intercourse. Semen is composed of sperm with fluid from the vas deferens, seminal vesicles, prostate gland, and other accessory glands. Sperm Production in the Testes Where does spermatogenesis occur? The production of sperm is a multi-step process that occurs within the seminiferous tubules which are long hollow coiled tubes in the testes. There are close to 1,000 such tubules measuring some one and a half meters in each testis. The walls of these tubules have sperm in different stages of differentiation, Sertoli cells and interstitial cells.
The production of sperm begins at puberty when spermatogonia undergo meiosis I to form primary spermatocytes, which then undergo meiosis II to form secondary spermatocytes. These secondary spermatocytes go on to form spermatids, which mature into sperm cells. Hint 1.