LACHRYMAL PUNCTA
\lˈakɹɪmə͡l pˈʌŋktə], \lˈakɹɪməl pˈʌŋktə], \l_ˈa_k_ɹ_ɪ_m_əl p_ˈʌ_ŋ_k_t_ə]\
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Points lacrymaux, are two small, round, and contractile openings, situate in the centre of a tubercle or papilla, Papilla lacrymalis, Tuberculum lacrymale, about a line and a half distant from the inner commissure of the eyelids, and continuous with the lachrymal ducts. These ducts, Lacrymales Canaliculi, Canales seu Ductus lacrymales, Ductus lacrymales laterales seu punctorum lacrymalium, Cornua lacrymalia seu limacum, Colliciae punctorum lacrymalium, Canaliculi limacum, (F.) Conduits lacrymaux, are two in number-a superior and an inferior -which extend from the puncta to the lachrymal sac. They seem formed by a very delicate prolongation of the conjunctiva, which is continuous with the mucous membrane of the lachrymal sac, (F.) Reservoir des larmes: -the Saccus seu Sinus seu Lacus lacrymalis, Dacryocystis, Infundibulum lacrymale.
By Robley Dunglison
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.