organum

organum.

See organ.

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organ [or´gan]

organum.

accessory digestive o's (accessory o's of digestive system) organs and structures not part of the alimentary canal that aid in digestion; they include the teeth, salivary glands, liver, gallbladder, and pancreas.

organ of Corti the organ lying against the basilar membrane in the cochlear duct, containing special sensory receptors for hearing, and consisting of neuroepithelial hair cells and several types of supporting cells.

effector organ a muscle or gland that contracts or secretes, respectively, in direct response to nerve impulses.

enamel organ a process of epithelium forming a cap over a dental papilla and developing into the enamel.

end organ end-organ.

Golgi tendon organ any of the mechanoreceptors arranged in series with muscle in the tendons of mammalian muscles, being the receptor for stimuli responsible for the lengthening reaction.

reproductive o's see reproductive organs, female and reproductive organs, male.

sense o's (sensory o's) organs that receive stimuli that give rise to sensations, i.e., organs that translate certain forms of energy into nerve impulses that are perceived as special sensations.

spiral organ organ of Corti.

target organ the organ affected by a particular hormone.

vestigial organ an undeveloped organ that, in the embryo or in some remote ancestor, was well developed and functional.

o's of Zuckerkandl para-aortic bodies.

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organum

pl. organa [L.] an organ; a somewhat independent part of the body that performs a special function.