Light micrograph taken with episcopic lighting using Normarski differential contrast (DIC) of a dried emotional human tear. Mainly, tears are composed

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Light micrograph taken with episcopic lighting using Normarski differential contrast (DIC) of a dried emotional human tear. Mainly, tears are composed of water, salts, antibodies and lysozymes (antibacterial enzymes). Tears brought about by emotions have a different chemical makeup than those for lubrication; emotional tears contain more of the protein-based hormones prolactin, adrenocorticotropic hormone, and Leu-enkephalin (a natural painkiller) than basal or reflex tears. The structures seen here consist mainly of crystallized salt. Horizontal object size of this section:

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Size: 5472px × 3648px
Photo credit: © ALFRED PASIEKA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: adrenocorticotropic, antibacterial, antibodies, basal, chemical, contrast, crystal, crystallised, crystallized, dic, differential, emotional, emotions, enzymes., hormone, hormones, human, leu-enkephalin, light, lubrication, lysozymes, micrograph, natural, normarski, painkiller, prolactin, protein, reflex, salt, salts, structures, tear, tears, water