<prompt> Normal sperm count is-20-40 millionml40-60 millionml60-80 millionml90-110 millionml  <response>: Ans. is d i.e., 90-110 millionml Semen o Semen contains sperm and secretions of the seminal vesicles, prostate, Cowpers gland and probably, the urethral glands. o An average volume of ejaculation is 2?5 - 3?5 ml. o Each ml of semen normally contains about 100 million sperms. o 50 of men with counts of 20-40 millionml and essentially all those with counts 20 millionml are sterile. o Morphologically abnormal or immotile spermatozoa also correlates with fertility. o Human sperm moves at a speed of 3mmmin through the female genital tract. o Sperms reach uterine tubes 30-60 minutes after copulation. COMPOSITION OF HUMAN SEMEN Physical character Seminal Vesicle secretions contributes 60 of total From prostate 20 of volume volume Buffers o Colour : white, opalescent o Fructose 1?5-6?5 mgml o Spermine o Phosphate o Specific gravity : 1-028 o Flavins o Citric acid o Bicarbonate o Ph: 7?35 - 7?50 o Ergothionene o Cholesterol o Sperm-count: 100 millionmL with fewer than 20 abnormal form o Ascorbic acid o Phospholipids o Phosphorlycholine o Fibrinolysin o Prostaglandins o Zinc o Acid phosphatase o Contain hyaluronidase 