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The plica (PLY-ka) semilunaris (sem-ee-LOO-ner-is), which is located around the eye was thought to have no function. But eventually it was discovered that this "useless" organ has an important function after all.
In fact, it is the "crusty" factory. It secretes a sticky mass that collects any foreign materials such as dust or pollen. All this trash is surrounded by the sticky gook so that it does not scratch the sensitive cornea in your eye. Once the garbage is collected, the plica semilunaris "escorts" it out of the eye just like a security guard would escort noisy troublemakers out of a theater.
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoFirst off, it isn't really sand. It's dried mucus.
It is made by your eyes to help keep the eyes moist and to protect them from foreign particles.
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What does it mean to get some shut eye?
To sleep.
What causes Rapid Eye Movement?
Rapid eye movement is common during sleep but when it happens when a person is awake, it is considered to be abnormal and is called nystagmus. It is often caused by the abnormal function in part of the brain or the inner ear.
Do wolves sleep with one eye open?
Dolphins and whales let one half of their brain sleep at a time. This allows them to keep one eye open to watch for danger. They also can still surface to get air, which they couldn't do if they were all the way asleep
Who was the private eye in 'The Big Sleep'?
I believe it was Bernie Ohls (regis-toomey) if i am thinking of the correct person
What types of products are available at the Dry Eye Shop?
The Dry Eye Shop sells products such as moisture goggles, warm compressors, lid hygiene products, sleep masks and lubricating drops for people who have dry eye symptoms.
What does sandman mean?
Sandman is the name given to a fictious entity who has the power to put one to sleep. "Mr. Sandman, give me your dreams." He places sand in your eyes and you fall to sleep. When you wake, the sand in the corner of your eye is the result of his putting you to sleep.
What dugongs sleep on?
I think they sleep on the sand under water.
What protects a camels eye from sand?
they have eye lashes and that protects the eye
How do janitor fish sleep?
Sometimes they sleep in the glass of a aqaruim and in the ocean they sleep in the sand.
Where do starfish sleep?
They sleep hidden beneath sand, keeping quiet.
What is non-rapid eye movement sleep?
Non-rapid eye movement (NREM) sleep-- A type of sleep that differs from rapid eye movement (REM) sleep. The four stages of NREM sleep account for 75-80% of total sleeping time.
Can a person sleep with eye open?
NO their eye will dry out!
Why do camel have thick eye brows?
to keep out sand during sand storms :)
Why has sand made my daughters eye red?
Because sand is small partials usually found at the beach, that comes from the ocean with salt water, the sand with salt will irritate the eye. best course of action flush the eye with water, and use eye drops to help get rid of the redness
What are characteristics of REM sleep?
You have the alternate episodes of REM and NREM types of sleep. REM sleep is characterized by rapid eye moment type of sleep. You can easily spot that the person is moving his eye ball and flickers the eye lids. The electroencephalogram of the patient is specific for REM and NREM sleep.
Is REM sleep a quiet or active sleep?
REM (Rapid Eye Movement) sleep is active sleep.
Do sand tiger sharks sleep?
no they r like all sharks if they sleep they die
