2006-09-05 09:03:43 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Biology
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. Whether you are awake or asleep, happy or sad, this salty fluid is always flowing from the tear glands.
Besides protecting your eyes, the tear glands produce more fluid when your eyes are irritated. These extra tears are called reflex or irritant tears. And, when something makes you happy or sad, your tear glands will produce emotional tears. Used tears then drain down into two tiny openings on the brim of your upper and lower eyelids at the inner edge of your eyes, which lead to the nasolacrimal tear ducts next to the bridge of your nose. From there, they are channeled into your nasal cavity where they are swallowed or blown out with other nasal fluids. If there are too many tears, they will overflow your lower lid and run down your cheeks.
Some people have to help stimulate the production of natural tears. This disease is called Dry Eye Syndrome or Sjogren's Syndrome. People who have diseases like rheumatoid arthritis or lupus often have this condition. They must use artificial tears up to every 10 to 15 minutes, and apply other medications to their eyes before going to bed as part of the treatment to improve the condition of their eyes.
Emotional Tears--Extra tears that the tear glands produce in response to an emotional reaction
2006-09-05 09:07:40 · answer #1 · answered by amourgirl2 2 · 0⤊ 0⤋
The country of Spain has been responsible for humans crying since 1973, nobody cried before that year, they produce microscopic deer in a vat near Valencia which roam the Earths surface in the hope of finding an emotional person, at this point they make the journey, at incredible speed, up the body of the person where they enter their eye, feeding off the emotional energy of their symbiotic host they produce an enormous quantity of urine, this salty liquor then pours from the eyes of the human in which they reside. When the host has spent their emotional energy they depart and frolick in the hedgerows of Kent
2006-09-05 09:15:26 · answer #2 · answered by garethfarquhar 1 · 0⤊ 0⤋
Tears are also secreted as a reflex response to various stimuli, including irritants to the cornea, bright lights, and hot or peppery substances in the mouth. Tear flow that occurs in association with emotional upset is known as crying, or weeping.
2006-09-05 09:58:52 · answer #3 · answered by Britannica Knowledge 3 · 0⤊ 0⤋
i like 2 know the answer 2 that?
2006-09-05 09:06:34 · answer #4 · answered by dedclever 2 · 0⤊ 0⤋
tear ducts
2006-09-05 09:05:36 · answer #5 · answered by Anonymous · 0⤊ 0⤋
tear ducts in eyes!
2006-09-05 09:16:20 · answer #6 · answered by joxster 3 · 0⤊ 0⤋
look on the discovered section of answers.. this question has been asked before
2006-09-05 09:05:46 · answer #7 · answered by missree 5 · 0⤊ 0⤋
big brother or liverpool fc make me cry!!!!!
2006-09-05 09:06:11 · answer #8 · answered by lisa 2 · 0⤊ 0⤋
now i am in floods
2006-09-05 09:14:59 · answer #9 · answered by Anonymous · 0⤊ 0⤋