what is tears
601683f741e094a832e7f6663fdac6f3
Tears Basal tears. In healthy mammalian eyes, the cornea is continually kept wet and nourished by basal tears. They lubricate the eye, and help to keep it clear of dust. Tear fluid contains water, mucin, lipids, lysozyme, lactoferrin, lipocalin, lacritin, immunoglobulins, glucose, urea, sodium, and potassium.lso, emotional tears are made up of a different chemical component than those evoked by eye irritants and can relay chemical messages to others. The change in sex drive could be attributed to a drop in testosterone provoked by the tear chemicals, reducing aggression.
3aed7c9a340c72949bfef4700bd37e61
tear 1 something resembling or suggesting a tear, as a drop of a liquid or a tearlike mass of a solid substance, especially having a spherical or globular shape at one end and tapering to a point at the other: teardrop earrings.
01f0d0381d8685a095bc8dc94cfb6a3d
- The Senate Majority and Minority Leaders are two United States Senators who are elected by the party caucuses that hold the majority and the minority respectively.he Senate Majority and Minority Leaders are two United States Senators who are elected by the party caucuses that hold the majority and the minority respectively.
b010a6d02c9205085b99ab026f287fcb
What Is Dry Eye? Our eyes need tears to stay healthy and comfortable. If your eyes do not produce enough tears, it is called dry eye. Dry eye is also when your eyes do not make the right type of tears or tear film.
79e2225070ea7890bacbe1a3698bf157
- tears. pl n. 1. (Physiology) the clear salty solution secreted by the lacrimal glands that lubricates and cleanses the surface of the eyeball and inner surface of the eyelids. 2. a state of intense frustration (esp in the phrase bored to tears).3. in tears weeping.l n. 1. (Physiology) the clear salty solution secreted by the lacrimal glands that lubricates and cleanses the surface of the eyeball and inner surface of the eyelids. 2. a state of intense frustration (esp in the phrase bored to tears). 3. in tears weeping.
63a7fe7004f408d6ec5c3c031ce46881
- Epiphora is the overflow of tears which is caused by an imbalance in tear production and tear drainage. Other than conditions that cause an abnormal increase in tear production, an abnormality in tear drainage is the most likely cause of epiphora.
210b1df26d5540b676949e733e9f8be5
TEARS Tears flow from tear glands into your eyes through tiny tear ducts. The tear glands are located under your upper lids, and when stimulated, produce tears to form a thin film over your eyeballs. Every time you blink the film spreads over your eyes to keep them moist and free of dust and other irritants.
b3938053a7bcb6bcb1485d407ccc69d2
tears artificial tears Any eye drop solution that can replace tears by approximating its consistency in terms of viscosity and tonicity and may contain many of the substances found in tears.rtificial tears Any eye drop solution that can replace tears by approximating its consistency in terms of viscosity and tonicity and may contain many of the substances found in tears.
835f4c27923c572be82b38067183edd4
crying Also found in: Dictionary, Thesaurus, Legal, Acronyms, Idioms, Encyclopedia, Wikipedia. crying. The uttering of inarticulate sobbing or wailing sounds, associated with the secretion of tears and often with facial contortion, that expresses the emotion, usually of grief or sadness but sometimes of joy.
6b542866deff4a95b9bcf919390d69c3
Function: The Tear Apparatus Function: The Tear Apparatus. Tears are produced by the lacrimal (tear) glands, which are situated above each eyeball. The glands continually secrete a small amount of salty fluid that is distributed over the surface of the eyes through the action of blinking and drain into the nose. Tears form a protective film that lubricates the eye and flushes out any dust and dirt. They also contain an antibacterial ingredient. Tear production increases when you cry or if the eye is irritated by a chemical or foreign particle.
bf436f8aa15bde5870bad38d26423b59
Why do we cry? The science of tears Crying can be scientifically defined as the shedding of your tears in response to an emotional state; very different from ‘lacrimation’, which is the non-emotional shedding of tears. With that said, your plumbing apparatus that makes your tears is all the same. So before I dazzle you with the fact that we have more than one type of tear, let us explore the science of tear production and how it links to the emotional centre of your brain.
4c36fbfb93986c234c87d96fdf0c826e
Tear Duct Surgery Tears are produced in the tear gland. By lubricating the eyes, tears play a vital role in the maintaining the health of the eye. When the eye is irritated excess tears are produced. People are not always aware of the eye irritation, but instead may notice the overproduction of tears.
af340383390ad70707695cdfed031946
Definition of 'asunder' If something tears or is torn asunder, it is violently separated into two or more parts or pieces.
7108b7fa3a20e3a41d9660f413fbac38
cry To shed tears, especially as a result of strong emotion such as grief, sorrow, pain, or joy. 1  To call loudly; shout. 2  To utter a characteristic sound or call. Used of an animal. 3  To demand or require immediate action or remedy: grievances crying out for redress.
8e35352c4130af55d43334f2fe0913eb
- See Also: CRYING. 1  Could feel the tears, like fire, coming up —James Baldwin. 2  Feel the tears brimming and sloshing in me like water in a glass that is unsteady and too full —Sylvia Plath. 3  Generally men’s tears, like the droppings of certain springs, only harden and petrify what they fall on —Walter Savage Landor.
5651be38ca5dd949e7a8cf0ec5808e5d
Tears Tearing (/ ˈ t i ə r ɪ ŋ /), lacrimation, or lachrymation (from Latin lacrima, meaning 'tear') is the secretion of tears, which often serves to clean and lubricate the eyes in response to an irritation of the eyes. Tears formed through crying are associated with strong internal emotions, such as sorrow, elation, love, awe and pleasure.
3d726d96d39efbe63cebc3dac8b7aa28
tears Etymology: ME, tere. a watery saline or alkaline fluid secreted by the lacrimal glands that, along with secretions from the meibomian glands and goblet cells and glands of Zeii, moisten the conjunctiva and cornea.Also called dacryon.rtificial tears Any eye drop solution that can replace tears by approximating its consistency in terms of viscosity and tonicity and may contain many of the substances found in tears.
63cb7728c766388b7b8b351db33c66b4
- lacrimal fluid. Definitions: 1. a watery physiologic saline, with a plasmalike consistency, but also contains the bacteriocidal enzyme lysozyme; it moistens the conjunctiva and cornea, providing nutrients and dissolved O. Synonyms: tears.The definition information for lacrimal fluid is provided by Stedman's.efinitions: 1. a watery physiologic saline, with a plasmalike consistency, but also contains the bacteriocidal enzyme lysozyme; it moistens the conjunctiva and cornea, providing nutrients and dissolved O.
9f376016602ff5cfb7d98312e9dd2074
tear Etymology: ME, teren, to rend. to rip, rend, or pull apart by force. Medtalk Pronounced, TARE A rent or disruption of a flattened tissue or surface. See Job's tear, Mallory-Weiss tear, Meniscal tear, Re-entry tear, Skier's tear Pronounced, TEER The watery product of the lacrimal glands. (tār) 1. A discontinuity in substance of a structure.
3bad9fd879d7aaf707b74959aff0d61f
Tears Lacrimation, or lachrymation, (from Latin lacrima, meaning tear) is the secretion of tears, which often serves to clean and lubricate the eyes in response to an irritation of the eyes.hey lubricate the eye, and help to keep it clear of dust. Tear fluid contains water, mucin, lipids, lysozyme, lactoferrin, lipocalin, lacritin, immunoglobulins, glucose, urea, sodium, and potassium.
81ac270d1c809ce934f2bd049fa45677
13 Things You Probably Donât Know About Tears The third type of tears are the ones we're probably most familiar with, those spilled after a fight with a partner or a powerful movie: emotional tears. One 1980s study found that emotional tears may contain more protein than other types of tears, but the science is far from conclusive at this point.
e40ac4b07b56b7fdbf24f107288cf6bd
- Dry eye is a condition in which a person doesn't have enough quality tears to lubricate and nourish the eye. Tears are necessary for maintaining the health of the front surface of the eye and for providing clear vision. Dry eye is a common and often chronic problem, particularly in older adults.
085ca403f4f6784327032e9f325d692e
Disc Tear (Annular Tear) What is a Disc Tear? A disc or annular-tear (or fissure) represents a degenerative or traumatic change in an interveterbral disc1. These tears involve separations or breaks in the fibers comprising the annulus fibrosus, or the fibrous outer-most portion of an intervertebral disc.
3aa91b83c85f119669b59652c71e977c
tears Definitions: 1. a watery physiologic saline, with a plasmalike consistency, but also contains the bacteriocidal enzyme lysozyme; it moistens the conjunctiva and cornea, providing nutrients and dissolved O.Synonyms: tears. The definition information for lacrimal fluid is provided by Stedman's.efinitions: 1. a watery physiologic saline, with a plasmalike consistency, but also contains the bacteriocidal enzyme lysozyme; it moistens the conjunctiva and cornea, providing nutrients and dissolved O.
60ffe9e0683b213ac6b2e50865623de0
tears watery secretion of the lacrimal gland, which is located at the outer corner of the eye socket immediately above the eyeball. Tearing, or lacrimation, is a continuous and largely involuntary process stimulated by the autonomic nervous system.luid is secreted into the lacrimal lake, the area between the eyeball and the upper eyelid, and spread across the surface of the eye by blinking. Tears serve to bathe and lubricate the cornea, the sensitive outer covering of the eyeball.
f8b112b016d3565dd7216ff55249ce0a
tear tear. 1  discerp-To shred or tear something apart. 2  avulse-To tear or pull away or pluck off. 3  deracinate - To pluck or tear up by the roots, from Latin racine, root.. 4  dilacerate, dilaniate-To tear or rip something or someone to shreds is to dilacerate or dilaniate.