Anatomic features of a constitution of a cat:
At house cats a skull the short round. The bone of a nose has less than cranium bones. The column has 7 cervical, 13 thoracal and 7 loin vertebra. The aitcbone is formed by three accrete vertebra.
Trunk of a cat extended and flexible because its bones in comparison with a animal not so big also differ at the same time in density and flexibility. This feature is enhanced by the strong muscles of a tendon bridging them is free enough. For this reason cats possess not hired grace, harmony and grace of removal.
At all cats the general proportions of a body are identical, though some deflections are possible. Cats, basically, have the long tail, except for a lynx and some breeds of house cats, for example, Main.
Extremities: lobbies and hinder legsof most cats of centre length and very strong. At the expense of it cats are capable to a powerful and prompt jump on extraction, besides, pads are armed by the peracute unguises which so are necessary at an offence and defence. Cats can clean unguises - to involve in leather "sheath", that routinely and do. On forelegs on five, and on back on four dactyls. On pads cats have the cushions supplied with sweat glands and sensitive nerve terminations. At the expense of it cats silently move.
The wool at cats happens various length and colouring. The more largly a kind, the more raspingly a wool. Both soft, and the dense wool grows on a skin fitting a body is free enough. It protects other tissues and members at fights.
Cats have sensitive hairs: in the form of 12 whiskers on the right and 12 to the left of nasal foramens and supraorbital hairs. By means of these hairs and all body they perceive surrounding space.
Cats fall into to predators, and at them perfectly educed jows. Young cats at the age of 4-5 weeks have the milk tooths which growth concludes by 8-9 week. These dens vary on constants in 4-6 months. At an adult cat of 30 dens.
Tongue at cats asperous because it is covered by cornual papillas. This especial allows cats to drink to (lap) fluids and to pick up nutrition, tongue also carries out a "brush" role at a continuous toilet of a cat which cleans the coat and at meal.
In an oral cavity of a cat there are some sialadens, and the nutrition moistened with a saliva, get to an esophagus and therefrom enter in a unicameral stomach. The intestine at cats has thick and thin departments, extent from 1 to 1,8 m.
The urethra at cats concludes in a prevagina, and at cats - on a penis end. Urine breeds metabolic products and the toxines which have got to it from an organism, and also participates in regulation saline and a water metabolism.
Cats possess a solid vision: eyes, as a rule, big (concerning the body dimensions) and unblinking, are located on the nose sides. At the expense of features of a constitution of visual system of a cat to see capable well in darkness. Everyone saw, how are shone in darkness of their eye. It descends at the expense of a diffraction of a light ray from any source. Perception of colour of cats are not such bright and accurate, as at people. Cats fall into with a night animal and like to hunt, basically, at night. Owing to it the pupil at them has the rimous form at the expense of what on an eye retina that quantity of light which is necessary enters only. In intrinsic to an eye angle there is a nictating membrane (the third eyelid) with which help the eye cornea refines from a dust.
Cats possess magnificent sense of smell which helps them at dialogue, at marking of the terrain, at hunting.
Mobile and upright cochleas of cats, and also perfect acoustical system testify to their excellent audition.
When a cat flatter, the pleasant sensation is called it because of surprising tactile sense which they possess. Often cats arise and search for a weasel. To stroke the wrong way does not follow, for in this case cats start dens and unguises for the defence. Sensitive hairs are at cats and on pads that allows them to be oriented perfectly well in space and not to encounter various interruptings. Any of us not once observed, how the cat shakes a clamp, having attacked a mud or water which has not noticed. And here hairs and nerve terminations in cushions of pads have accepted this information, and the cat has acquired it.
And what remarkable sense of balance based on regulation of the schema of the body in space, cats, dexterously walking about on roofs or on the top ridge of a fence possess, getting on arbours. With it they are helped by an organ of equilibrium which is in an intrinsic ear. At the expense of this member the cat in case of falling, for example, from 5th floor, is capable so to correct position of the body, that, as a rule, it lands on pads. Possibly, this mechanism has got cats from its ancestors.
Lifetime of cats on the average 10-12 years, but some champions lived and to 20 and more.
