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kannanSend an Instant Message to kannan  




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Quick Scroll Physiology -weightlessness 01.20.06 (2 years ago) #1
results in

a]decreased CO
b]hypotension
c]gut motility
d]decreased osteoporosis
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Quick Scroll 01.28.06 (2 years ago) #2
Do you mean weightlessness in space?
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Quick Scroll 01.28.06 (2 years ago) #3
Prolonged weightlessness results in a loss of muscle strength, muscle volume and bone density, particularly in the legs
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Quick Scroll 01.29.06 (2 years ago) #4
the ans has to be
d]decreased osteoporosis
ref gyton physio
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Quick Scroll 02.02.06 (2 years ago) #5
hey kanan whats the answer?
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Quick Scroll 02.02.06 (2 years ago) #6
I think weightlessness means the effect of positive g or microgravity on the body...so its a force acting downwards increasing the venous pressure in the lower limbs...or pooling of blood...hypotension..On the other hand it increases calcium resorption from the bone leading to osteoporosis..
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Quick Scroll 02.16.06 (2 years ago) #7
dr4jc wrote:
I think weightlessness means the effect of positive g or microgravity on the body...so its a force acting downwards increasing the venous pressure in the lower limbs...or pooling of blood...hypotension..On the other hand it increases calcium resorption from the bone leading to osteoporosis..
Weightlesness sure means the effect of

microgravity as in space travel, but it is called

in common terms, ZERO GRAVITY.


POSITIVE gravity is different. It is the

gravitational force acting frm head to foot.



On the other hand, microgravity is more like lying

horizontally.......so, in microgravity there's no

pooling of blood in the veins of the lower limbs.

On the contrary, there may be a slightly increased

blood flow to the upper part of the body and head

resulting in facial puffiness ( but this may not be in

anyway as severe as a red out that occurs in

NEGATIVE G )


Osteoporosis occurs with weightlesness.

What's the ans given, Kannan?
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