Tear (secretion)
Esquema
Jerarquía
<materiales por origen> > biological material > material animal > <material animal por forma o función> > <excreciones y secreciones>
Descripción
Fluid secreted by the lacrimal apparatus. Tears, along with other secretions, help form the protective, precorneal film on the exterior of the eye. Tears can be reflexly secreted in response to a variety of stimuli (bright lights, etc.). The secretion of tears as a result of emotional upset is called psychical weeping.
URI original del concepto
Otros términos
- 淚 (分泌物) [zh]
- lèi [zh]
- lei [zh]
- tears (secretion) [en]
- 眼淚 [zh]