Re: Re: Re: Sperm
quote: http://www.coolnurse.com/sex_faqs13.htm
What is human sperm made up of?
A. I'll assume you are asking about sperm plus the seminal fluid (a.k.a. semen) which contains the sperm. Each sperm or spermatozoon, (spermatozoa = more than one of them) is actually made up of three parts, the head, the midpiece and the tail. One cell is called a spermatozoa.
The head contains chromosomes or genetic material (DNA) and on the outside of the head enzymes needed for the penetration and fertilization of an egg. The midpiece contains “stuff” that provides energy for the locomotion of the tail. The tail helps the sperm swim. The middle section controls the sperms activities. Semen contains small amounts of more than thirty elements, including fructose, ascorbic acid, cholesterol, creatine, citric acid, lactic acid, nitrogen, vitamin B12, and various salts and enzymes.
The sperm or (spermatozoa -- which are the little swimming critters) make up only about 5% of what a man ejaculates each time he ejaculates. This represents about 100 to 400 million of them! Therefore, they are very, very, very tiny, in fact a single sperm is the smallest cell in the body. The rest of what a man ejaculates in his “ejaculate”, which is about a teaspoonful (5 ml), is made up of water, sugar, protein, vitamin C, zinc, and prostaglandins.
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