| Name: | optic artery |
|---|---|
| Synonyms: | optic arteries |
| Definition: | The artery that carries blood to the eye. It branches from the primitive internal carotid artery and enters the eye ventrally through the optic fissure. |
| Ontology: | Anatomy Ontology [ZFA:0005044] |
| Name: | pericyte |
|---|---|
| Synonyms: | pericytes, perivascular cells |
| Definition: | An elongated, contractile cell found wrapped about precapillary arterioles outside the basement membrane. Pericytes are present in capillaries where proper adventitial and muscle layer are missing (thus distinguishing this cell type from adventitial cells). They are relatively undifferentiated and may become fibroblasts, macrophages, or smooth muscle cells. |
| Ontology: | Anatomy Ontology [ZFA:0009112] |