tear gland


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Related to tear gland: lacrimation, Tear ducts

tear gland

[′tir ‚gland]
(anatomy)
References in periodicals archive ?
The first is the psychological circuit that will provide the stimulation of the brain and the second is the presence of a functioning tear gland. Consequently any factor that affects emotions such as a depressive illness can prevent crying.
She thought she was in the hands of the best surgeon in Scotland and it was only after checking her file that she learned he had wrongly identified the tear gland as a tumour.
As shown in the literature, apoptosis may induce damage of the ocular surface,29 tear gland apoptosis and epithelial apoptosis on the ocular surface are abnormally increased in patients with dry eye and diabetes, which destroys the structure and function of tissues.30 As shown in other studies, Fas-Fas ligand, protein kinase C delta that is correlated with abnormal expression, is found in the tear gland and blood of SS patients.31 This study indicates that the apoptotic process for maintaining normal physiological function in many tissues may also cause dry eye.
As a consequence, tear production should decrease due to parasympathetic dopaminergic efflux or muscarinic blockage at the parasympathetic centers or locally on the tear gland. Furthermore, evidence suggests that cocaine also increases sympathetic activity and innervation (Jacobsen et al.
A deficiency in the watery part (usually caused by immune mediated destruction of the tear gland), will result in drying of the cornea with subsequent inflammation, pain, pigmentation and a typical green discharge that is often mistaken for infection.
The tears of the of eye come from the tear gland, called the lacrimal gland, which is located above the outer eye.
Dry eye happens when the tear gland produces insufficient quantities of tears.
She said she thought she was in the hands of the best surgeon in A-Scotland and it was only after checking her file that she learned he had wrongly identified the tear gland as a tumour.
A problem with his tear gland means he is one of only a handful in the world who can perform the feat.
Lack of tear gland fluid affects 75 per cent of people aged more than 65.
This disease occurs when the dog's immune system attacks the tear glands, causing a reduction in tear production.