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Re: back from Jesse's NOW Jacobson's Organ


I heard that horses have it too.

Cathy, west central IL, z5b

On Oct 25, 2005, at 8:20 PM, Zemuly Sanders wrote:

> Thanks for finding that "understandable" info, Kitty.
> zem
>
> ----- Original Message ----- From: <kmrsy@netzero.net>
> To: <gardenchat@hort.net>
> Sent: Tuesday, October 25, 2005 8:04 PM
> Subject: Re: [CHAT] back from Jesse's NOW Jacobson's Organ
>
>
>
>> Amazing! I googled Jacobson's organ + cats and found lots more - in
>> layman's terms. Haven't got time to look at it much now but will
>> tomorrow. Here's the first one I found:
>>
>>
>> "Cats (along with snakes and a few other mammals) have a magnificent
>> organ called the vomeronasal organ, most oftenly known as the  
>> Jacobson's
>> Organ. It is located inside the mouth, just behind the front  
>> teeth, and
>> connects to the nasal cavity. Opening his mouth slightly enables the
>> Jacobson's Organ to open up the ducts connecting to the nasal cavity.
>> The appearance of the cat as he brings air into the Jacobson's  
>> Organ has
>> sometimes been likened to a "smile," other times to a grimace. The
>> Jacobson's Organ seems to play a large part in the sense of smell  
>> of a
>> cat, judging by its frequency of use around my house.
>>
>>
>> "According to Valeriy ILYICHEV, Doctor of Biology, in this article,
>> there are three hypotheses on the exact function of the Jacobson's
>> Organ. The first is to perceive the smell of food; the second, as a
>> "sixth sense" to help predict unusual occurrences, e.g., earthquake,
>> volcanic eruption; and the third is for perception of sexual odors -
>> pheromones. If I got a vote, I'd choose all three, judging by the
>> behavior of my own cats. "
>>
>>
>> Kitty
>>
>> -- "Zemuly Sanders" <zsanders@midsouth.rr.com> wrote:
>> Okay, I found it in a web search.   This is a pretty technical   
>> (for me)
>> article.
>> zem
>>
>> The vomeronasal organ (VNO) or Jacobson's organ (sometimes misspelled
>> "Jacobsen's") is an auxiliary olfactory sense organ in some  
>> vertebrates, all
>> of which are tetrapods. It is located in the vomer bone, between  
>> the nose
>> and the mouth. The sensory neurons within the vomeronasal organ  
>> detect
>> distinct chemical compounds, usually large molecules. Snakes use  
>> it to smell
>> prey, sticking their tongue out and touching it to the opening to  
>> the organ.
>> Some mammals use a distinctive facial movement called flehmen to  
>> direct
>> compounds to this organ, while in some other mammals the entire organ
>> contracts or pumps to draw in compounds.
>>
>> Most animals with a vomeronasal organ utilize it in the detection of
>> pheromones, though some pheromones are detected by the regular  
>> olfactory
>> organ, and the vomeronasal organ seems to detect other compounds  
>> in addition
>> to pheromones.
>>
>> Some scientists believe that in humans the vomeronasal organ is
>> nonfunctional and regresses before birth, as is the case with some  
>> other
>> higher animals, including cetaceans, some bats, and apes. These  
>> scientists
>> also believe that in adult humans, there is no neural connection  
>> between the
>> organ and the brain. Nevertheless, some evidence suggests that the
>> vomeronasal organ does not atrophy and remains functional  
>> throughout a
>> person's life. Thus, its function in these organisms and in  
>> humans, if
>> indeed real, is still somewhat mysterious.
>>
>> ----- Original Message ----- From: "Chapel Ridge Wal Mart National  
>> Hearing Center"
>> <4042N15@nationalhearing.com>
>> To: <gardenchat@hort.net>
>> Sent: Tuesday, October 25, 2005 11:05 AM
>> Subject: Re: [CHAT] back from Jesse's
>>
>>
>>
>>> Really?  What's it called?
>>>
>>> Kitty
>>> ----- Original Message ----- From: "Zemuly Sanders"  
>>> <zsanders@midsouth.rr.com>
>>> To: <gardenchat@hort.net>
>>> Sent: Monday, October 24, 2005 5:54 PM
>>> Subject: Re: [CHAT] back from Jesse's
>>>
>>>
>>>
>>>> Not to mention that little organ in the roof a cat's mouth.  I  
>>>> read about
>>>>
>>> it
>>>
>>>> several years ago.  Ever notice how they will kind of open up their
>>>> mouths
>>>> and look up at the sky?  They can actually tell what the weather  
>>>> is.
>>>> It's
>>>> pretty interesting.
>>>> zem
>>>>
>>>> ----- Original Message ----- From: "kmrsy" <kmrsy@netzero.net>
>>>> To: <gardenchat@hort.net>
>>>> Sent: Monday, October 24, 2005 9:07 AM
>>>> Subject: Re: [CHAT] back from Jesse's
>>>>
>>>>
>>>> > Jim, you may check all the satellites and techno-weather  
>>>> reports, but
>>>> > to
>>>> > Beans, only the nose knows, with a little help from the ears and
>>>>
>>> whiskers.
>>>
>>>> >
>>>> > Kitty
>>>> > neIN, Z5
>>>> > ----- Original Message ----- > From: "james singer"  
>>>> <islandjim1@verizon.net>
>>>> > To: <gardenchat@hort.net>
>>>> > Sent: Monday, October 24, 2005 4:29 AM
>>>> > Subject: Re: [CHAT] back from Jesse's
>>>> >
>>>> >
>>>> >> Hi, Pam. Still all present and accounted for.
>>>> >>
>>>> >> Eye of Wilma is now north of Key West and southwest of >>  
>>>> Naples--zeroing
>>>> >> in on Marco Island. It's raining quite hard here and had been  
>>>> since
>>>> >> about midnight; the wind is probably in the 20-30 mph range,  
>>>> gusty.
>>>> >> Satellite TV comes and goes, but mostly is on. Beans wanted  
>>>> to go >> out,
>>>> >> of course, so we opened the door for her and she stood there,  
>>>> looking
>>>> >> out, for a few minutes and then got up on the back of the  
>>>> futon and
>>>> >> took a nap.
>>>> >>
>>>> >>
>>>> >>
>>>> >> On Oct 23, 2005, at 9:17 PM, Pam Evans wrote:
>>>> >>
>>>> >> > I'm back, Jim - is everything still OK on the ranch??
>>>> >> >
>>>> >> > --
>>>> >> > Pam Evans
>>>> >> > Kemp TX
>>>> >> > zone 8A
>>>> >> >
>>>> >> >  
>>>> ------------------------------------------------------------------- 
>>>> --
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>>>> >> >
>>>> >> >
>>>> >> Island Jim
>>>> >> Southwest Florida
>>>> >> 27.0 N, 82.4 W
>>>> >> Hardiness Zone 10
>>>> >> Heat Zone 10
>>>> >> Minimum 30 F [-1 C]
>>>> >> Maximum 100 F [38 C]
>>>> >>
>>>> >>  
>>>> ------------------------------------------------------------------- 
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>>>> >
>>>> >  
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>>>
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