The respiratory system has many parts, including the nose, throat (pharynx and larynx), windpipe, and lungs. Air comes in through the nose and is then carried down into the lungs, through a process referred to as inspiration. In the lungs, the oxygen is transferred to the red blood cells. The red blood cells then carry the oxygen to other organs in the body. This is all part of the physical process of a healthy body.
Inconsistency in breed classification and naming among registries means that an individual animal may be considered different breeds by different registries (though not necessarily eligible for registry in them all, depending on its exact ancestry). For example, the TICA's Himalayan is considered a colorpoint variety of the Persian by the CFA, while the Javanese (or Colorpoint Longhair) is a color variation of the Balinese in the TICA and the CFA; both breeds are merged (along with the Colorpoint Shorthair) into a single "mega-breed", the Colourpoint, in the World Cat Federation (WCF), who have repurposed the name "Javanese" for the Oriental Longhair. Also, "Colo[u]rpoint Longhair" refers to multiple different breeds in some other registries. There are several examples of nomenclatural confusion of this sort. Furthermore, many geographical and cultural names for cat breeds are fanciful selections made by Western breeders to be "exotic"-sounding and bear no relationship to the actual origin of the breeds;[4] the Balinese, Javanese, and Himalayan are all examples of this trend.
To know for sure you’ll need to see the pedigree and your cat should have been registered with a cat association. A pedigree is a family tree going back four years or more that contains the full names of the cats, all of which should be Russian Blues or cat breeds that are approved for breeding Russian Blues by the cat association. That sounds awfully complicated but all purebred cat cats are registered in that way in the West (Europe and North America). There are a number of cat associations. Hope this helps.

Thank you for your email. I'm glad that you have a scheduled appointment with Paige, as if the medications did not work, it deserves a second look. One thing that your veterinarian can do is to take an x-ray of her lungs and make sure that there is nothing to worry about there. If she isn't on heartworm prevention, a heartworm test might be a good idea as well. Without knowing the details of her situation, or being able to examine her, I can't comment more on what might be happening with her. I hope that she recovers well!
The name "Cheetoh cat" probably brings up the image of the laid-back cartoon cheetah named Chester who advertises Cheetos. But it is also a fairly new breed of house cat. According to the International Cheetoh Breeders Association, the Cheetoh is an attempt to breed a cat that looks more like a wild cat than other breeds but is still a gentle house pet. Carol Drymon bred the first Cheetoh in 2001 by crossing a Bengal and an Ocicat. A Cheetoh is a vary large cat, with healthy males reaching 23 pounds. Such a large cat with leopard-like spots may scare strangers, but is quite tame and as safe around children as any other house cat. TICA considers the Cheetoh an experimental breed.
There are good and bad with everything. The genetic code is being increased with more offspring from more individual tigers, you will have a stronger genetic code. The question is animal quality of life. But ask yourself this. If a tiger is brought into the world to an abusive trainer, would that tiger rather be unborn? Hopefully we can rescue them when they are abused, but a living being is precious and always wanted in this world.

Thank you for your email. Without seeing Sharleen, I can't recommend any medication or therapies for her, and many OTC pain medications are toxic to cats. Your veterinarian will be able to recommend something for her discomfort since they have seen her and know her history. It would be a great idea to call them and let them know that you think she is in pain, and follow any recommendations that they may have. I hope that everything goes well for her.

Thank you for your email. Since Tortie was just seen by your veterinarian and was deemed healthy, her periodic bouts of rapid breathing may be normal, and may follow bouts of exertion or anxiety. If the periods that she is breathing rapidly become more frequent, or more severe, it would be a good idea to have her seen by your veterinarian and examined to make sure that she is okay. It might be helpful to video the episode, since she doesn't seem to breathe that way when she is at an appointment. I hope that she is okay!
Polydactyl cats, also called "polydacts" or "Hemingway cats" are sometimes confused as a "breed," however they fall under the domestic cat category. Truthfully, most registries do not accept polydact cats in their standards. Polydactyl means "many toes," and is considered a genetic defect. Ernest Hemingway had a number of polydactyl cats at his estate, and he allowed them to breed indiscriminately, so, many years after his death, the descendants of his original cats still live there. Polydacts may come in any variety of colors and color patterns.
In 1871 a Russian Blue was shown at the first cat show at the Crystal Palace in London, under the name Archangel Cat. At this point, Russian Blues were shorthaired, solid blue felines with foreign body types. From photos and published sources of the time, the original coat was thick, dense, glossy, and colored a light silver-blue. Russian Blues competed in the same class with all other shorthaired blues, despite obvious differences in type. Since the round-headed, cobby British Blues were favored in the show halls, the slender Russian Blues rarely won.
Hypoglycemia is a life-threatening condition in which the blood sugar levels drop dangerously low. The pancreatic beta cells produce the hormone insulin which helps to move glucose from food into the cells (for energy).  It is not a disease in itself, but it is a symptom of an underlying disorder. Causes include excessive insulin administration in the diabetic cat, decreased glucose production (missed meal, vomiting, certain medications, glycogen storage disease), and excessive glucose consumption due to sepsis (bacterial infection of the blood).
Adding to the captivating physical qualities of this breed is the eye color. The eyes are yellow while the Russian Blue is a kitten, and by four months there is a bright green ring around the pupil. As the cat matures, the eye color graduates into a bright, vivid green, aesthetically intensifying the already remarkable blue-silver coloring of the cat. The eyes are wide set and round, and only slightly slanted at the upper corners, giving the Russian Blue a sweet expression that matches well with its gentle temperament.