Term: sperm proximal side
Name: sperm
Synonyms: sperm cell, spermatozoid, spermatozoon
Definition: A mature male germ cell that develops from a spermatid.
Ontology: Anatomy Ontology [ZFA:0009006]

Name: proximal side
Synonyms: proximal
Definition:
Ontology: Spatial Ontology [BSPO:0000061]