lacrimal


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lacrimal

 [lak´rĭ-mal]
pertaining to tears.
lacrimal apparatus a group of organs concerned with the production and drainage of tears; it is a protective device that helps keep the eye moist and free of dust and other irritating particles. The lacrimal gland, which secretes tears, lies over the upper, outer corner of the eye; its excretory ducts branch downward toward the eyeball. A constant stream of tears washes down over the front of the eye and is drained off through two small openings located in the inner corner of the eye. Through these openings the tears pass into the lacrimal canaliculus, then through the lacrimal sac into the nasolacrimal duct and finally into the nasal cavity.
The lacrimal apparatus. From Jarvis, 1996.

lac·ri·mal

(lak'ri-măl),
Relating to tears, their secretion, the secretory glands, and the drainage apparatus.
Synonym(s): lachrymal
[L. lacrima, a tear]

lacrimal

/lac·ri·mal/ (lak´rĭ-mal) pertaining to the tears.

lacrimal

or

lachrymal

(lăk′rə-məl)
adj.
1. Of or relating to tears.
2. Of, relating to, or constituting the glands that produce tears.

lacrimal

[lak′riməl]
Etymology: L, lacrima, tear
pertaining to tears. Also spelled lachrymal.

lac·ri·mal

, lachrymal (lak'ri-măl)
Relating to the tears, their secretion, the secretory glands, and the drainage apparatus.
[L. lacrima, a tear]

lacrimal

Pertaining to the tears, to their production and to their disposal. Note that the spelling ‘lachrymal’ has neither logical nor etymological justification. The term comes from Latin lacrima , a tear.

lacrimal

Relating to tears.

lacrimal

Relating to tears.

lacrimal

pertaining to tears.

lacrimal apparatus
a group of organs concerned with the production and drainage of tears; it is a nutritive and protective device that helps keep the eye moist and free of dust and other irritating particles. Includes lacrimal gland, accessory lacrimal glands, third eyelid glands and the nasolacrimal duct.
Enlarge picture
Nasolacrimal apparatus in the dog.By permission from McCurnin D, Poffenbarger EM, Small Animal Physical Diagnosis and Clinical Procedures, Saunders, 1991
lacrimal canaliculus
the lacrimal duct within the eyelid.
lacrimal caruncle
the rounded, often pigmented swelling at the medial canthus of the eye.
lacrimal cyst
congenital displacement of lacrimal tissue results in subconjunctival cysts.
lacrimal drainage system
the structures concerned with tear collection; includes lacrimal lake, puncta, canaliculi, sac and nasolacrimal duct.
lacrimal duct
there are two of these minute ducts draining tears from the conjunctiva, via the lacrimal puncta, into the lacrimal sac. Called also lacrimal canaliculus.
lacrimal duct irrigator
a 20 gauge, blunt-pointed, straight or curved cannula with a needle attachment so that it can be attached directly to a syringe nozzle.
lacrimal fossa
fossa in the medial wall of the orbital rim which houses the lacrimal sac.
lacrimal gland
contained in a pad of fat in the dorsolateral part of the orbital cavity and drains into the conjunctival sac via many excretory ducts. The secretion is largely watery tears, but in the pig is mucus. May develop adenitis.
lacrimal gland anomalies
failure of patency of the duct, supernumerary opening of the duct and ductal ectasia recorded.
lacrimal gland atrophy
part of the syndrome of keratoconjunctivitis sicca.
imperforate lacrimal puncta
see imperforate punctum.
lacrimal lake
the recess between the lids at the nasal commissure of the eye where the tears collect.
lacrimal pump
contraction of the orbiculari oculi muscle creates pressure on the lacrimal sac which causes tears to drain from the lacrimal lake.
lacrimal punctum
there is one on each eyelid close to the medial canthus. Each drains tears from the conjunctival sac into the lacrimal duct in the same eyelid. The tears then pass to the lacrimal sac and into the nasolacrimal duct. See also punctum.
lacrimal reflex
tear production caused by irritation of the cornea and conjunctiva.
lacrimal sac
the distended proximal end of the nasolacrimal duct into which the lacrimal ducts empty.
lacrimal sinus
an excavation of the lacrimal bone which communicates with the maxillary sinus in some species.
lacrimal system
see lacrimal apparatus (above).
References in periodicals archive ?
In the middle ages, treatment for chronic dacryocystitis was drainage of abscess externally and extirpation of the lacrimal sac.
In this research, we aimed at evaluating clinical efficacy of medial canthoplasty-combined CDCR in patients with medial telecanthal deformities and lacrimal drainage system obstruction.
Magnetic resonance imaging (MRI) of the orbit revealed involvement of the superior eyelids and the anterior orbit and bilateral symmetrical diffuse enlargement of the lacrimal glands with an isointense signal intensity relative to muscle on T1-weighted images and a hypointense signal intensity on T2-weighted images (Figure 2).
Out of 78 malignant Lacrimal gland tumours, 35 (9M, 26F) were Adenoid cystic carcinoma presenting in ages 14 to 75 years (Mean Age=31y), 25 (10M, 15F) were Adenocarcinoma with age range 4 to 72 years (Mean Age=40y), 15 were Lacrimal gland lymphoma (6M, 9F) with age range of 20 to 65 years (Mean Age=49y), 2 cases (2M) were of Acinic cell carcinoma (2.
This is the first step in developing future therapies for the lacrimal gland," said Scripps Research Institute biologist Helen Makarenkova.
Dacryocystitis is inflammation of lacrimal sac and can occur due to trauma and/or infection, leading to blockage of duct system (Slatter, 2003).
A producao lacrimal foi avaliada utilizando-se o teste da lagrima de Schirmer-1 (TLS-1), no qual uma tira milimetrada de papel especial foi inserida no fornice conjuntival ventral durante um minuto, sem a instilizacao de colirio anestesico (Teste de Schirmer, Ophthalmos, Sao Paulo, Brasil).
8) However, because the size of the STT strips often leads to very low readings (8) and is problematic to insert, (6) we wanted to evaluate the PRT tear test as an alternative method to measure lacrimal function.
Four cysts were diagnosed soon after birth due to the presence of medial subcutaneous swelling seen at the area of the lacrimal system, accompanied by cystic sensation upon palpation; however all surgeries were performed after the age of 3 years (mean age 4.
After creating osteotomy, lacrimal sac was identified.
Tokyo, Oct 1, 2013 - (ACN Newswire) - A research group headed by Professor Takashi Tsuji of Tokyo University of Science have successfully regenerated fully functional bioengineered salivary and lacrimal (tear) glands.
3 cm con importante crecimiento intraorbitario e infiltracion de glandula lacrimal y musculos orbitarios.