A mammalian sperm is minute microscopic, flagellated and motile gamete with no nutritive material, protective enveopes and most of cell organelles like ribosome, and E.R. etc. It is basically formed of four parts each performing a specific functions. 1 Head: Shape or head varies in different mammals. It is generally oval and flat and formed of two parts acrosome and nucleus. Acrosome contain lytic enzyme called hyaluronidase which helps in the peneteration of ovum. 2 Neck: It is the smallest part and may be indistict. It is formed of two centriols perpendicular to each other and is formed from the cenrosome of spermatid. 3 Middle piece: It lies behind the neck and is cylinderical in the human sperm. It is formed of a mitochondrial spiral, nebenkern, around the proximal part of axoneme. 4 Tail: It is the longest part of sperm. It is slender and tapering part. It is formed of two parts; central contractile and microtubular part called axoneme or axial filament, and outer protoloasmic sheath. 5 Sperm : They Look Somewhat similar to a tadpole and they are about 40 Microns Long.
The ovum is either ovoid or spherical and is much larger than other cells in the body
The ovum is in general a large cell. It is about the size of a dot made with an ink pen, and sometimes ova can be seen with the naked eye. Most cells are smaller than the ovum.
ovum
assuming you mean a sperm and not a cingular cell of a sperm, it is about 1/18th the size of an ovum.
ovum
Ovum(:
how does the ovum work
The ovum is in general a large cell. It is about the size of a dot made with an ink pen, and sometimes ova can be seen with the naked eye. Most cells are smaller than the ovum.
it is a female
ovum
the ovum
it is sort of roundish oval ish. but not rectangle! why do you ask??
The ovum is an egg in the ovary of the female.
Another name for ovum would be egg cell.
Ovum
An ovum
ovum
ovum