Heath Ledger's Parents: Daughter Matilda is 'Very Much Like Her Dad'. Actor Heath Ledgerâs daughter Matilda, 7, looks an awful lot like her daddy, and his parents agree the two are âvery muchâ alike. In recognition of the fifth anniversary of Heathâs death on Jan. 22, Kim and Sally Ledger sat down with Australiaâs New Idea magazine to talk about their son.
The primitive stem cell of spermatogenesis found on the periphery of each seminiferous tubule is called spermatogonia. Spermatogonia is an undifferentiated male germ cell.
Located in the testicles, the seminiferous tubules are tiny tubes in which spermatozoa or sperm cells are formed. They are lined with Sertoli cells, specialized cells that serve as a sort of nursery for growing sperm cells.perm cells are formed in seminiferous tubules. Malformation of seminiferous tubules may cause male infertility problems. Located inside the testicles, seminiferous tubules are where spermatozoa -- or sperm cells -- are formed. View slideshow of images above.