Answer
The three main divisions of the sperm are the head, middle piece and tail. The head has a acrosome covering, and contains the nucleus of the sperm. The middle piece contains mitochondria, and the tail consists of a principal piece and an end piece.
Work Step by Step
The flattened pointed head of a spermatozoan is about 5 um ling. It contains the nucleus with 23 chromosomes. It is covered by a cap, the acrosome , which contains enzymes ( hyaluronidase and proteses) that help the sperm penetrate the cellular barrier around the secondary oocyte.. The neck is the constriction behind the head of the sperm. It consists of centrioles from which the tail is formed. . The middle piece contains spiral mitochondria that provide the ATP based energy for sperm metabolism and propulsion, . The tail is the longest part of the perm and it comprises a principal piece, and an end piece . The tail by its serpentine motion provides the propulsive force that moves the sperm along at a rate of about 35 to 40 inches per hour.
