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The lacrimal apparatus is the physiological system containing the orbital structures for tear production and drainage.〔Cassin, B. and Solomon, S. ''Dictionary of Eye Terminology''. Gainesville, Florida: Triad Publishing Company, 1990.〕 It consists of: * The lacrimal gland, which secretes the tears, and its excretory ducts, which convey the fluid to the surface of the human eye; * The lacrimal canaliculi, the lacrimal sac, and the nasolacrimal duct, by which the fluid is conveyed into the cavity of the nose, emptying anterioinferiorly to the inferior nasal conchae from the nasolacrimal duct. * The nerve supply of lacrimal apparatus done by carotid plexus of nerves along artery internal and external sympathetically but parasympathetic from lacrimal nucleus of the facial nerve ==References== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lacrimal apparatus」の詳細全文を読む スポンサード リンク
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