| Name: | eye | 
|---|---|
| Synonyms: | eyes | 
| Definition: | Cavitated compound organ that consists of the neural retina, lens, cornea and iris and is the sensory apparatus of the visual system. | 
| Ontology: | Anatomy Ontology [ZFA:0000107] | 
| Name: | neuron | 
|---|---|
| Synonyms: | |
| Definition: | The basic cellular unit of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the nervous system. | 
| Ontology: | Anatomy Ontology [ZFA:0009248] |