Sperm in human

Times of India. As the body is constantly producing sperm cells, a healthy male will usually always have some sperm cells in their semen. This is why male chimpanzees possess the largest testes of all the great apes, weighing in roughly 15 times larger than gorillas, relative to their body weight. How to boost sperm health. The tail is about 50 micrometres long; its thickness of one micrometre near the mitochondria gradually diminishes to less than one-half micrometre at the end of the tail. For example, excessive drinking, drugs, and smoking may affect fertility. The tail or " flagellum "executes the lashing movements that propel the spermatocyte.