Term Name:	sperm head-tail coupling apparatus
Synonyms:	head-tail coupling apparatus, HTCA, implantation fossa, sperm connecting piece, sperm neck
Definition:	A centrosome-based structure consisting of two cylindrical microtubule-based centrioles and associated components which anchors the flagellum to the sperm head.
Ontology:	GO: Cellular Component [GO:0120212]    QuickGO    AmiGO