The head of the spermatozoon has all the genetic material.

A normal sperm will have an oval shaped head with a long tail.

A normal sperm has an oval shaped head and properly formed tail.

Sperm morphology: More than 9% of the sperm must have a normal shape (oval head, mid-piece and tail).

A normal sperm has an oval head and a long tail that propel it forward

Of these, at least 30% should have the correct shape - an oval head and a moving tail.

A healthy sperm has an oval head and a long tail which propels it forward.

Normal sperm has an oval head and a long tail that work together to drive them forward.

Normal sperm has an oval head and a long tail which moves it forward.

A normal sperm has an oval head and a long tail, which work together to propel it forward.

Normal sperm has an oval head and a long tail, which moves it forward.

Normal sperm have oval heads and long tails, which work together to propel them.

Normal sperm have oval heads and long tails, which work together to propel them forward.

The morphology of an ideal sperm cell should be as follows: ovoid head, regular contour, single and straight tail, fixed and transparent nucleus.

It was very tall with very thin, extremely long arms and legs and a very small oval head.