No!
It's rare, but possible.
It is sperm that has 2 heads instead of 1 but, don't worry its very common!:)
There is a specialized lysosome. It is called acrosome
Because most of the sperm deformed. Two heads, two tails, huge heads, pinheads, coiled tails - the list of common deformities is a long one.
they have long tails for swimming and heads to get into the ovum
they have long tails for swimming and heads to get into the ovum
No, the name comes from the substance found in their heads, spermaceti
the number that represents a sex position is the number 69. just think of it this way, the circles in 9 and 6 repesent heads. the number that represents a sex position is the number 69. just think of it this way, the circles in 9 and 6 repesent heads.
This depends on the reason for the infertility. Usually problems with sperm are genetic, so cannot be seen by looking at sperm. However some sperm will have motility problems that reduce fertility, and this can clearly be seen down a microscope - some sperm will be seen swimming round in circles.
one
Most people think that sperm burrow there heads in the egg cell to break the membrane, but they actually use enzymes to break away at the membrane.
Most people think that sperm burrow there heads in the egg cell to break the membrane, but they actually use enzymes to break away at the membrane.