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otolith

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PostSubject: otolith Tue Mar 17, 2009 9:20 pm

Otoliths are calcium phosphate particles or calcium carbonate? Cool Mad

what is its function?-its present in endolimph in cochlea...ryt? so, its func is hearing or static/dynamic balance? Mad Sad
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PostSubject: Re: otolith Tue Mar 17, 2009 9:32 pm

also known as octocenia
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PostSubject: Re: otolith Tue Mar 17, 2009 9:37 pm

itz in the endolymph.....funcs nt important at all!
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PostSubject: Re: otolith Tue Mar 17, 2009 9:38 pm

any more queries?
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PostSubject: Re: otolith Tue Mar 17, 2009 9:43 pm

otolith=calcium carbonate particles
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PostSubject: Re: otolith Tue Mar 17, 2009 9:45 pm

yes

"Otoliths are small particles, composed of a combination of a gelatinous matrix and calcium carbonate in the viscous fluid of the saccule and utricle."


chek out wiki article (although i must say that they are not always correct)



http://en.wikipedia.org/wiki/Otolith
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PostSubject: Re: otolith Tue Mar 17, 2009 9:56 pm

good one...but they are not of that much importance that we r giving it......
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PostSubject: Re: otolith Tue Mar 17, 2009 10:00 pm

hm...i had a ques in preboard asking for its funct...leave it!!!

one more....functions of oestrogen and progesterone..!! Smile
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PostSubject: Re: otolith Tue Mar 17, 2009 10:03 pm

Oestrogen:




  • Responsible for female sex organs and secondary
    characteristics e.g. bodily hair and breast development.
  • Promotes the growth of the endometrium (lining of the
    uterus).
  • Causes the moving of the fallopian tube towards the small
    fluid-filled formation within the ovary that contains the
    developing egg (follicle).

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PostSubject: Re: otolith Tue Mar 17, 2009 10:04 pm

Progesterone:




  • Mainly responsible for preparing the body for pregnancy.
  • Progesterone (together with prolactin) stimulate the
    breasts in preparation for milk production.
  • Unlike oestrogen, progesterone causes thickening of the
    cervical mucus, and in so doing makes it more difficult for
    sperm to penetrate.
  • Tends to result in a loss of water from the body, due to
    the loss of salt.
  • Natural progesterone is destroyed in the stomach, and can
    therefore not be taken orally.
  • Progestogens are a synthetic form of the female sex
    hormone progesterone.

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PostSubject: Re: otolith Tue Mar 17, 2009 10:04 pm

thats all i know about these two....phew
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PostSubject: Re: otolith Tue Mar 17, 2009 10:06 pm

this is wid reference 2 those hormones secretd by corpus luteum
oestrogen :stimulate normal growth n development of 2ndary sexual characteristics,governs menstrual cycle, responsible 4 proliferatn of endometrium
progesterone:maintains pregnancy, prevents ovulation and menstrual flow during pregnancy, stops FSH secretion
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PostSubject: Re: otolith Tue Mar 17, 2009 10:06 pm

k....thanks...do one thing..be online till tmrw morning..so that i will be posting doubts and you keep on clearing it...LOL!! hehehe...
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PostSubject: Re: otolith Tue Mar 17, 2009 10:07 pm

lol
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PostSubject: Re: otolith Tue Mar 17, 2009 10:09 pm

y are u staying up?
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PostSubject: Re: otolith Tue Mar 17, 2009 10:11 pm

chalo ill cum bk online aftr i finish another chaptr....till then my lappie is on sothe status will be online bt im not ill be bk aftr 10 mins...see ya
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