| Name: | somite |
|---|---|
| Synonyms: | somitic mesoderm |
| Definition: | Undifferentiated mesodermal components of early trunk or tail segments or metameres, derived from paraxial mesoderm; forms myotomes, sclerotomes and perhaps dermatomes. |
| Ontology: | Anatomy Ontology [ZFA:0000155] |
| 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 |