Editing Serotonin (section)

====Lungs====
The [[lung]],<ref name="Lauweryns_1973">{{cite journal | vauthors = Lauweryns JM, Cokelaere J, Theunynck P | title = Serotonin producing neuroepithelial bodies in rabbit respiratory mucosa | journal = Science | volume = 180 | issue = 4084 | pages = 410–413 | date = April 1973 | pmid = 4121716 | doi = 10.1126/science.180.4084.410 | s2cid = 2809307 | bibcode = 1973Sci...180..410L }}</ref> including that of reptiles,<ref name="Pastor Ballesta Perez-Tomas Marin 1987 pp. 713–715">{{cite journal | vauthors = Pastor LM, Ballesta J, Perez-Tomas R, Marin JA, Hernandez F, Madrid JF | title = Immunocytochemical localization of serotonin in the reptilian lung | journal = Cell and Tissue Research | volume = 248 | issue = 3 | pages = 713–715 | date = June 1987 | pmid = 3301000 | doi = 10.1007/bf00216504 | publisher = Springer Science and Business Media LLC | s2cid = 9871728 }}</ref> contains specialized [[epithelial cells]] that occur as solitary cells or as clusters called neuroepithelial bodies or bronchial Kulchitsky cells or alternatively ''K cells''.<ref name="Sonstegard_1982">{{cite journal | vauthors = Sonstegard KS, Mailman RB, Cheek JM, Tomlin TE, DiAugustine RP | title = Morphological and cytochemical characterization of neuroepithelial bodies in fetal rabbit lung. I. Studies of isolated neuroepithelial bodies | journal = Experimental Lung Research | volume = 3 | issue = 3–4 | pages = 349–377 | date = November 1982 | pmid = 6132813 | doi = 10.3109/01902148209069663 }}</ref> These are enterochromaffin cells that like those in the gut release serotonin.<ref name="Sonstegard_1982" /> Their function is probably [[Hypoxic pulmonary vasoconstriction|vasoconstriction during hypoxia]].<ref name="Lauweryns_1973" />