The sperm is made up of three pieces, the Head, the Mid-Piece and the Tail. The head continas the important part, the nucleus with the genetic information to be passed onto the child. The tail, which is actually a Flagellum, provides a rapid waving motion which pushes the sperm cell through the fluid allowing it to "swim". This obviously requires much energy which the cell gets from the sugar Fructose not glucose like most cells. To get the most energy out of any sugar requires it to be fully metabolised (oxidised) to just CO2 and water. To do this the cell used organelles called Mitochondria, it is not true that only the Ovum has these as some would say but it is true that only the ovum conributes them. There are 6 motochondria stacked on top of each other in the midpeice which provide just enough energy to keep the cell going. Once the head penetrates the ovum (assuming it is the lucky cell) the mid piece and tail drop off and are no longer of use.
EDIT: While the above answer is very good, I believe this is what you were looking for.
The sperm cell consists of a head, a midpiece and a tail. The head contains the nucleus with densely coiled chromatin fibres, surrounded anteriorly by anacrosome, which contains enzymes used for penetrating the female egg. The midpiece has a central filamentous core with many mitochondria spiralled around it, used for ATP production for the journey through the female cervix, uterus and uterine tubes. The tail or "flagellum" executes the lashing movements that propel the spermatocyte
the mid piece is a bundle of mitochondrions and is the actual motor of the spermcel
Spermiogenesis
Middle piece is formed of mitochondiral spiral , nebenkern around the proximal part of axoneme. The mitochondria are the carriers of the oxidative enzymes and the enzymes which are responsible for oxidative phosphorylation. So the middle piece is the power house of a sperm
The function of sperm is to deliver genetic material.
The function of a sperm cell is to compete with all it's "fellow" sperm cells to fertilize an available egg and produce a viable offspring.
The sperm cell is an interestingly specialised cell whose function is to swim to the ovum and then to fertilise it. The sperm cell has three basic parts. The head contains the DNA to be injected into the ovum and also has chemotatic receptors for navigation towards the ovum. The Tail is at the other end and is a single flagella in healthy cells. This structure flips and twists in such a way as to propel the cell along. Finally between the two is the body of the cell which contains six mitochonria to power the movement of the flagella. It is the the joint between the body and the head that is broken during fertilisation so that none of the motochondria are from the father.
Spermiogenesis
A sperm cell consists of three parts: HEAD which contains the acrosomal vesicle, nucleus and centriole MIDPIECE which contains mitochondria to produce energy needed for movement TAIL or flagella which flips back and forth to provide movement Only the sperm head penetrate the egg. The midpiece and tail are lost
Middle piece is formed of mitochondiral spiral , nebenkern around the proximal part of axoneme. The mitochondria are the carriers of the oxidative enzymes and the enzymes which are responsible for oxidative phosphorylation. So the middle piece is the power house of a sperm
The function of sperm is to deliver genetic material.
the function of the sperm duct is to carry the sperm from the testes
The spermatozoon is a remarkably complex metabolic, locomotive and genetic machine. It is approximately 60 microns in length and is divided into 3 sections: head, neck and tail. The oval sperm head consists of a nucleus containing the highly compacted DNA, and an acrosome that contains the enzymes required for penetration of the egg shell for fertilization. The neck maintains the connection between the sperm head and tail and consists of the connecting piece and proximal centriole. The tail harbors the midpiece, principle piece and endpiece. The tail midpiece contains the axoneme or engine of the sperm and the mitochondrial sheath, the source of energy for movement. Physiologically, the sperm axoneme is the true motor assembly and requires 200-300 proteins to function. Among these, the microtubules are the best-understood components. Sperm microtubules are arranged in the classic "9+2" pattern of 9 outer doublets encircling an inner central doublet. Defects in the sperm axoneme are well-recognized causes of ciliary dyskinesias that are routinely associated with infertility.
It stores sperm
The sperm cell consists of 3 parts: the head (with the acrosomal vesicle, nucleus and centriole), midpiece (containing mitochondria) and tail (for movement). Enclosing all of this is a cell membrane
sperm main function is to carry the male genes to the egg
hold the sperm
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There is no such thing