The body of a dog - sensory organs

Dog body and senses have been developed in such a manner that could not fail in the pack to catch their prey. He needed to do relatively well-developed muscles to achieve sufficient speed for hunting, but also for the long journey in the search. Another feature is a well-developed teeth, which allows a perfect capture, as well as the processing of prey. Significant also are canines that are characteristic feature of all carnivores.

Continuation of CA No 4 / 2006

Over time, domestication and breeding targeted created innumerable quantity breeds. These breeds differ in view, the size, but also using the breed. Despite these developments and a wide range of breeds and their appearance is the anatomical structure of dogs for all the same, while the construction is similar to other carnivorous creatures.

Using the sensory organs of central nervous system receives stimuli from the surrounding environment. The dog has five sensory systems: sight, smell, hearing, touch and taste.

Sight

Body eyes are the eyes. Wall of the eye is composed of three layers in which the sound vetevky nerve, which is based on the brain. On the front of the eye bulb is colored iris with a hole, the pupil, which passes through the image.The image focuses the lens, which is located in pupils. The internal space is filled with jelly-like mesh material - vitreous. The eye is protected from damage both mechanically, and to the top, bottom and the third cap, both chemically slzami.Oko dog eye is weaker than a man does not recognize color. The vision of dogs is focused on tracking small, fast moving objects (animals). Immobile dog sees objects at a distance of about 300 m, moving at about 700 m. In the hunting dogs, pursuing prey predominantly flair. Often, if the prey does not, dogs can not be distinguished character. In the darkness see the dogs much better than people. Field of view the dog is usually very wide, according to the position of the eye. Breeds with shortened back nose (brachycephalic), such as MOPS, boxer, etc., are expressly binocular vision,because their eyes facing forward. I can perfectly estimate the distance. Other breeds with a long nose back (dlouholeba) are due to the location of the eyes on the side of a very wide field of view, but their spatial vision is limited.

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