A specialized area of membrane of the host axon terminal that faces the plasma membrane of the host neuron or muscle fiber with which the axon terminal establishes a synaptic junction; many host synaptic junctions exhibit structural presynaptic characteristics, such as conical, electron-dense internal protrusions, that distinguish it from the remainder of the axon plasma membrane.
Synonyms:
exact_synonym:
host cell pre-synaptic membrane
related_synonym:
other organism pre-synaptic membrane; other organism presynaptic membrane