Do sperm have a nervous system

In a guy who has reached sexual maturity , the two oval-shaped testicles , or testes TESS-teez make and store millions of tiny sperm cells. Sahin et al. When sperm fertilizes meets an egg, this fertilized egg is called a zygote ZYE-goat. The genetic revolution: Can we predict school performance from DNA? The discovery of the Hv1 channels in sperm also raises the prospect of creating drugs that block or open them. Mol Hum Reprod.