A sperm cell Sperm cells are the male reproductive sex cells. Sperm cells are composed of a head that is packed with half the DNA needed for an organism and a tail that is used for movement.
Sperm centrioles. Most sperm cells have centrioles in the sperm neck. Sperm of many animals has 2 typical centrioles known as the proximal centriole and distal centriole. Some animals like human and bovine have a single typical centriole, known as the proximal centriole, and a second centriole with atypical structure.
Your father and every other human male carry sperm cells, or male sex cells, in their testes. When an egg cell and a sperm cell unite, the two combine to form an embryo or an unborn, developing organism. At this point, the embryo is able to develop into a fully formed offspring of its parents.This diagram with labels depicts and explains the details of Sperm Cells.