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It is well known that human tears often serve to moisten the

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Director
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It is well known that human tears often serve to moisten the [#permalink] New post 19 Jul 2007, 06:34
00:00
A
B
C
D
E

Difficulty:

  5% (low)

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100% (00:00) correct 0% (00:00) wrong based on 1 sessions
It is well known that human tears often serve to
moisten the eye, protect it from infection, and wash
away irritants; such tears are called irritant or reflex
tears. Dr. Field hypothesizes that emotional tears
have a different biological function. She suggests that
by shedding tears when under emotional stress people
excrete harmful chemicals that build up in such body
fluids as blood serum during emotional stress.

Each of the following, if true, provides some support
for Dr. Field’s hypothesis EXCEPT:

(A) The people most likely to cry when undergoing
emotional stress are less likely to suffer from stressrelated
diseases than is the population at large.

(B) If a local anesthetic is applied to the surface of
the eye, irritant and reflex tears are inhibited, but
emotional tears are not.

(C) The chemical composition of tears that are
induced by grit in the eye is identical to the
composition of tears induced by emotional Stress.

(D) The concentration of a substance that the body
produces only under conditions of emotional Stress is
thirty times greater in tears than in blood serum.

(E) Patients who suffer from a condition that pre
secretion of tears display a slower than normal
physiological recovery from emotional stress.
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Re: CR : Human Tears [#permalink] New post 19 Jul 2007, 08:56
trahul4 wrote:
It is well known that human tears often serve to
moisten the eye, protect it from infection, and wash
away irritants; such tears are called irritant or reflex
tears. Dr. Field hypothesizes that emotional tears
have a different biological function. She suggests that
by shedding tears when under emotional stress people
excrete harmful chemicals that build up in such body
fluids as blood serum during emotional stress.

Each of the following, if true, provides some support
for Dr. Field’s hypothesis EXCEPT:

(C) The chemical composition of tears that are
induced by grit in the eye is identical to the
composition of tears induced by emotional Stress.


I think it is C.

If the emotional tears are to excrete harmful chemicals then the emotional tears should have those chemicals. Irritant tears will not have those harmful chemicals.
Director
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 [#permalink] New post 19 Jul 2007, 09:54
C it is...It says the emotional tears are same as irritant tears(that induced by grit).
Director
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 [#permalink] New post 19 Jul 2007, 20:51
Good. OA is C. I somehow messed up this CR as i did not understand the word 'grit'
  [#permalink] 19 Jul 2007, 20:51
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