Term: horizontal myoseptum neuromuscular junction
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
Name: horizontal myoseptum
Synonyms: horizontal septum
Definition: A connective tissue partition developing at the apex of the chevron-shaped myotome and separating dorsal (epaxial) and ventral (hypaxial) body wall muscle masses.
Ontology: Anatomy Ontology [ZFA:0000671]
Name: neuromuscular junction
Synonyms: motor endplate, NMJ
Definition: The junction between the axon of a motor neuron and a muscle fiber. In response to the arrival of action potentials, the presynaptic button releases molecules of neurotransmitters into the synaptic cleft. These diffuse across the cleft and transmit the signal to the postsynaptic membrane of the muscle fiber, leading to a change in post-synaptic potential.
Ontology: GO: Cellular Component [GO:0031594]   QuickGO   AmiGO