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2006-10-13 15:56:37 · 15 answers · asked by Anonymous in Science & Mathematics Other - Science

15 answers

I believe that you can cry underwater. Read on my defense explanations of its correlations based on the few facts:

Fact #1The secretory cells of the lacrimal gland produce a highly complex product of water, ions and proteins. At least five neurotransmitter receptors and three different second message systems are involved in controlling the different secretory processes of this highly sophisticated secretory epithelium. The secretion is controlled by sympathetic or parasympathetic innervation.

Correlation: As there is stimulant to cause crying then there is innervation to make the secretions of tears.

Fact#2:Tears are produced by the lacrimal and accessory lacrimal glands. The lacrimal glands are located in the upper/outer quadrant of the orbit and produce "reflex" tears when the eye is irritated or stimulated by emotions.

Correlation: Aside from emotional stimulation that make you cry, water that gets in contact with your eyes is irritant that will increase even more tears.

Fact #3:Secretion of water by the acinar cells is by osmosis and is driven by the outward movement of ions, particularly Cl–. Neurotransmitter receptors are linked via second messenger systems to ion channels and regulate their permeability and thus the movement of water.
Correlation: The lacrimal ducts are controlled with sphincters thus hydrostatic pressure won't have an impact on the inside movement of the water.

Fact #4.The drainage of tears is both passive and active. Gravity is responsible for passive drainage. Blinking facilitates active drainage by causing negative pressure in the canaliculus and lacrimal sac; the negative pressure draws tears into the lacrimal drainage system.

Correlation: I believe that hydrostatic pressure will result to a negative pressure inside thus drawing the tears into the lacrimal drainage system which will be out as tears.

Well, with such few correlations I truly believe that you can cry underwater though it won't be obvious as tears mixed up in water won't make the difference on how the water looks not unless chemically tested.

You may want to give it a try and you will believe me. How I know? It was my way to conceal my tears ifever I was crying back in my younger years especially when I was scolded by my mother. With all the water, I still could tell if I was still making tears or not.

"To believe or not to believe" is up to you, have a nice day!♥

2006-10-13 22:16:17 · answer #1 · answered by ♥ lani s 7 · 2 2

hi, Cremedelacreme,
So far, some people have said that you can cry underwater... however.. it doesn't make much sense to me.

I recently learned in depth about : "aquatic therapy".. (physical therapy in water) .. and one of the main points brought up was, that humans are unable to sweat... We lose heat through conduction and convention....
>>>>>>>>
I would think, that the lacrimal glands/tear ducts.. would not be allowed to release anything due to hydrostatic pressure...
>>>>>>>>
"Crying", is a physical manifestation of sorrow... And your eyes will produce tears, regardless of whether you are underwater or not....No one would see your tears and drying them might pose some difficulty. :-)
>>>>>>

The teardrops just get mixed with the rest of the water... Otherwise, it depends on how you define "cry." ..You really shouldn't try sobbing underwater, if you can prevent it (can't breathe)... Sorry, that last part is common sense.... ;)
>>>>>>>>>

Thanks, for the question!;)

My regards!

2006-10-14 00:42:38 · answer #2 · answered by Kimberly 6 · 1 0

I remember when I was younger I cried underwater because I did not want people to see I was crying. However, I had those goggle things on and you obviously have to come up for air.

2006-10-15 02:01:41 · answer #3 · answered by Led*Zep*Babe 5 · 0 0

Yes. You can cry anyplace, but under water, your tears just mix with the surrounding water.

2006-10-14 00:46:06 · answer #4 · answered by fingerpicknboys 3 · 0 1

I don't think so, I can not even breath under water ~

2006-10-13 23:11:02 · answer #5 · answered by mimi 4 · 2 0

yes you can, tears can still fall from your eyes but you cant breath underwater so you have to go to the surface to continue cryig.

2006-10-13 23:05:35 · answer #6 · answered by marikit _ako 2 · 1 1

I guess you can cry but I don't think any tears would come out. :)

2006-10-13 23:05:01 · answer #7 · answered by Anonymous · 0 2

sure but ull have a hard time breating

2006-10-13 23:00:39 · answer #8 · answered by jdak34 3 · 2 0

You can cry!
Fishes will help you!

2006-10-14 02:10:59 · answer #9 · answered by The Knowledge Server 1 · 0 2

could sponge bob cry underwater? if so, then yes.

2006-10-13 23:03:43 · answer #10 · answered by invisigoth208 3 · 0 2

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