Handsome giraffe: this animal has the highest blood pressure

At first glance, this creation seems verydisproportionate: thin long legs, large trunk, small head and long neck. But actually it is not. Giraffe is very elegant and sweet. In addition, this animal has the highest blood pressure. And it's not surprising. But why do this, try to understand.

Why do we all want to go on a giraffe? Is it because he is handsome and tall?

Yes-yes, it's all about him. About the giraffe. About the same, which is called a cross between a leopard and a camel. It is this animal that has the highest blood pressure. And these are not miracles, accomplished by the stroke of a magic wand. The giraffe's body should fully supply the brain with blood, but it's not easy to pump blood so high.

To the blood from the heart could come up,providing the full nutrition of the brain of the animal, the blood pressure higher than it is simply necessary. When the giraffe's head is raised, the pressure at the level of the brain is exactly the same as for other non-small mammals.

Giraffe - the highest of the existing animals today. Almost half of its growth is occupied by the neck. Like a person, he has seven cervical vertebrae, the only difference is that they are elongated.

They say that many centuries ago the necks of thesebeautiful animals were normal, well, or quite a bit longer than the norm. But when the drought came and there was less food, it was the giraffes, who were taller than the rest, who could reach the upper leaves of the trees. That's why they had much more chances for survival and getting offspring. By the way, in very young giraffes, the neck is relatively short.

These important animals sleep very little, while standing up. But even if they lay down on the ground, they try to make the head comfortable, put it on the back foot, curving the neck, or even lean against the ground. It takes quite a long time.

Giraffe high blood pressure is not a hindrance

So, because of the long neck of this animal, the mosthigh blood pressure. It is estimated that it is about three times higher than the pressure in a healthy average person. The heart muscle of this handsome man is able to pump blood into the giraffe's brain, and this path is 3.5 meters!

It would seem, because of such a long neck thathelps him to grasp the small leaves of the trees and leaves at a considerable height with mobile lips, the giraffe can get very injured, because the branches are very sharp. But even here the nature proved to be rather prudent. An animal with the highest blood pressure has a number of "devices" that allow it not to lose blood if it is cut or injured. Its organism is arranged so that at such a high blood pressure the vessels lie deep (deeper than the rest of mammals) and have sufficiently dense walls with a huge number of valves.

But what's interesting is what happens if a giraffewanted to get drunk and put his head in the water? Does not blood hit the head and there is no hemorrhage? And after a sharp rise in the head giraffes for some reason do not experience dizziness. Even a person faces such a phenomenon. Giraffe would have experienced such things, but he was lucky: in addition to the numerous blood vessels, there are special valves in his neck. When the animal bends, they are able to automatically close, and the blood does not flow to the head. When a giraffe sharply lifts his head, these same valves "prohibit" blood too quickly from his head.

A whale or a giraffe? Where is natural justice?

By all the rules of the genre, it is the largest in thethe world's animals - whales - must have the highest pressure among all mammals. But no. After all, these huge creatures, despite the fact that their heart is much larger than the giraffe, do not need constant high blood pressure to ensure that all organs are supplied with blood and oxygen. In addition, it does not have much influence on them.

But the giraffe does not live so simply. An adult can have an increase of about 6 meters, while the neck will be about one and a half meters long. And the brain must be provided with food. That is why this animal has the highest blood pressure.

In order for his brain to work well with the greatest increase in the head (so that the animal does not collapse into a swoon), its pressure simply needs to be much higher than that of the rest of the fauna.

When a giraffe is resting lying down, he can not very muchquickly get up: the blood simply will not "rush" to the brain, and it will easily fall. With such growth, all the movements of these spotted handsome men are quite smooth and slightly slow.

Now, figuring out what's wrong, you can easily answer the question of which animal has the highest blood pressure? Of course, the giraffe! It is 260 to 160 mm Hg. Art.