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

Name: plasma membrane
Synonyms: bacterial inner membrane, cell membrane, cellular membrane, cytoplasmic membrane, inner endospore membrane, integral component of plasma membrane, integral to plasma membrane, juxtamembrane, plasma membrane lipid bilayer, plasmalemma
Definition: The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.
Ontology: GO: Cellular Component [GO:0005886]    QuickGO    AmiGO