My childhood Ragdoll cat, Rags used leave his cat mouth open after he would smell things quite frequently, and I came to hate it because it was often after smelling urine or another cat’s butt. But, when I found out what he was doing, I thought it was pretty rad.




You recognize what I’m speaking about – the place they depart their mouth barely open after which type of daze off for a second after which lick their nostril and shut their mouth once more?
Final week, I ran throughout the road to a neighbor’s home to seize their recycle bin that had been on the curb for just a few days – I figured they have been out of city, so I put the bin behind their home and got here again house. Once I got here again house, Charlie wouldn’t cease smelling me, he had that cat smelly face and I




couldn’t work out why till later after I had stopped by my dad and mom home and Caymus couldn’t depart me alone both – Caymus by no means exhibits consideration like that, so I knew I had one thing on me. Got here to search out out that the recycle bin had been sprayed by a male cat and I had the scent of urine on my pants – LOVELY.
So after I got here house, I instantly modified out of my pants and had Charlie and Trigg give them whiff, in order that I might get a photograph for this publish!




There’s a implausible web site referred to as, Pet Tails that lays this out extra intimately and that’s the place I obtained this info.
Flehmen Response Cat:
Cats maintain their mouth open after smelling one thing due to their Jacobson’s organ, a particular sensory organ referred to as the vomeronasal organ or Jacobson’s organ that enables a cat to have 14 occasions the sense of scent of a human. The act of opening the mouth and drawing up the air to the Jacobson’s organ is named the “flehmen response”.




Primarily, the cat is opening her mouth to suck within the air into the Jacobson’s organ and take a extremely deep sniff of the odor.




This particular sensory organ referred to as the vomeronasal organ or Jacobson’s organ permits a cat to have 14 occasions the sense of scent of a human. The Jacobson’s organ which consists of two fluid-filled sacs that hook up with the cat’s nasal cavity is situated on the roof of their mouth behind their tooth.




The rationale they appear dazed for a second or two is as a result of they will study plenty of details about their environment via their sense of scent. They mark territory utilizing the scent glands on their cheeks and paws. The glands secrete pheromones, that are chemical substances that stimulate a behavioral response, resembling an avoidance or aggressive response. Pheromones are additionally present in saliva, feces, and urine. When cats “spray” it’s one other means they’re marking territory.
Extra Concerning the Flehmen Response
It’s a well-known undeniable fact that cats have a a lot keener sense of scent than us people do, however how they handle to out-sniff us is just not widespread information.
Neither is the truth that they’ve extra developed sensory organs than we do. Considered one of these sensory organs is Jacobson’s organ or the vomeronasal organ, which gives them with very detailed details about a sure scent.




To make use of this organ, they have to hold their mouths open and breathe via their mouths as a result of its openings are situated on the roof of their mouths, simply behind their incisors.
As they breathe within the scent, the roof of their mouths should be moist with saliva. It’s also essential they solely breathe in via their mouths. Actually, this is without doubt one of the explanation why they make that odd face. They pull up their higher lip to allow as a lot of the scent to enter their mouths.
Scientists have described the sensory info shifting via the vomeronasal organ as being one thing between scent and style.
This could provide you with an concept of the complexity of the knowledge supplied by this organ. This implies that cats use their Jacobson’s organ once they need to go into explicit element a couple of sure scent.
What’s the goal of the flehmen response?
The flehmen response is closely tied to figuring out pheromones, which is extraordinarily vital for cats. As such, it performs an enormous function in interspecies communication.
The vomeronasal organ is olfactory-chemosensory organ which can assist animals collect chemical messages from their friends. That is exactly why Caymus and Charlie have been so excited about sniffing out the urine on the pants. They have been taking within the pheromones within the male cat’s urine.
The flehmen response is way stronger in males, which need to be significantly perceptive of the pheromones of females in warmth, but in addition to these of different males. This performs an important function within the mating course of.
This explains why most often, cats are utilizing their flehmen’s response to trace down smells coming from different cats, and trying out if one other cats butt smells. In households with multiple cat, they are often seen displaying the grimace extra usually.
Furthermore, needless to say you usher in new smells in the home from outdoors each single day. Your cat doesn’t must exit to smell the smells of different cats since you are bringing them in for them.
Apart from this, cats will use their vomeronasal organs to research very intense smells. As an example, you might discover them with their mouths open analyzing your soiled laundry, which is closely soaked in your scent.
The place is the vomeronasal organ situated?
In cats, the vomeronasal organ is situated contained in the roof of their mouths. It has ducts resulting in the mouth and the nostril referred to as the nasopalatine canals.
On the roof of the cat’s mouth, simply behind its incisors, you may see two openings. These are the openings to the nasopalatine canals, that are crammed with fluid. This makes it not possible for the scent to go up passively from the mouth to the nostril.
For scent to journey via the canals, it needs to be soaked in saliva and pushed up till they arrive into contact with the organ’s sensory cells. That is the place the extraordinary mouth-breathing comes into place.
By pulling up the higher lip, the openings of the nasopalatine ducts are additionally extra uncovered and the movement propels the saliva-soaked scent up the ducts.
What’s flehmen’s grimace?
That is the identify for the foolish face that cats make once they use their vomeronasal organ. The time period flehman’s grimace refers back to the second once they pull again their higher lip, expose their tooth, and breathe into their mouths with their eyes mounted in a single level. “Grimace” is used exactly to recommend the exaggerated options they show in that second.
Flehmen Response FAQ
Do people have the vomeronasal organ?
Sure, people even have the vomeronasal organ. It’s a part of the accent olfactory system and it’s located on the anteroinferior third of the nasal septum. It has specialised olfactory cells, which perform as afferent neurons (which take the knowledge from the nostril to the mind). Its perform has been linked to the detection of pheromones, however there’s extensive research nonetheless being carried out on this matter. One other perform of the Jacobson’s organ is linked to the manufacturing of the gonadotropin-releasing hormone.
Do people have the flehmen response?
Whereas people do have the vomeronasal organ, its performance remains to be being researched. Actually, there’s nice debate about this within the scientific group . It has been found that although the organ is current, people don’t show accent olfactory bulbs that may obtain the knowledge from the vomeronasal receptor cells. This implies that the sensory perform of the Jacobson’s organ in humans is non-operative.
Are cats the one animals displaying the flehmen response?
Actually not, there are many different animals that show this response. Actually, it is a attribute shared by mammals. For those who thought that cats look adorably foolish with their mouths open and their eyes popped and glued, then wait until you get a glimpse of different animals like horses, donkeys, tigers, and even rhinos.
Nevertheless, cats show a few of the most developed vomeronasal organs. To present you an concept of their expertise, it is best to know that hound canine, that are famend for his or her eager sense of scent, have 9 receptors of their Jacobson’s organ, whereas cats have 30 various kinds of receptors.
Clearing the Air About Flehmen’s Response
Is your cat disgusted with you when it has its mouth open?
It’s a widespread false impression amongst cat house owners that cats make the flehmen grimace – sure, it really has a reputation – as a result of they’re disgusted with a sure scent. There are many jokes about how cats scent their proprietor’s toes or footwear after which make the stunned face with their mouths open as a result of they merely can’t stand the scent.
As you may see, that’s definitely not the case. Not solely are they nor disgusted, however when cats use their vomeronasal organ, it implies that they’re attempting to get extra details about a sure scent. They’re basically scanning for pheromones. If something, it needs to be taken as a praise.
So, the subsequent time you see your kitty with its mouth open and incisors uncovered, know that it’s processing an important scent. Have you ever caught your kitty along with his or her mouth open? What have been they smelling once you did? Or do you know what they have been smelling? Inform us all about your flehmen response tales within the feedback part under.
Pin it right here!







