How long is our neck under normal circumstances?

This is related to the height of the person, if you are 170 tall, then the neck is about 10 centimeters, and less than 170 is less than 10 centimeters.

A normal adult has a neck length of about 8-10cm. However, due to some acquired effects, many people's necks will look much shorter, such as being overweight.

The length of the neck depends on the person, the length is basically between 8-18 is normal, the physiological structure of the average person has data to trace, the model with a good figure is a nine-headed body, that is, the head length is one-ninth of the overall height.

In clinical medicine, there is no strict standard for the length of the neck, generally 10 to 18cm, of course, some people have a short cervical vertebrae, his neck is short, and people with long cervical spine have a long neck.

I think a neck like mine that is seven or eight centimeters long is a normal neck. My family's neck is about the same length as mine, but my brother's neck is so long that his classmates call him "Giraffe".

The horse gate attendant has the longest neck of the Hanxi Dragon.

Mamenxisaurus is a genus of sauropod dinosaurs known for its very long neck, which accounts for almost half of the total length of the body. There are several species that have been classified into the genus Mamenxisaurus, and the attribution of individual species may be disputed. Its fossils have been found in several provinces in western China.

It is closely related to Minbo Emeisaurus and belongs to the Mamenxi dragon family.

Most of the Malao Xiaomenxi dragons can exceed 20 meters in length, and a few individuals can exceed 30 meters. Estimates of the weight of Mamenxisaurus vary greatly between species, with smaller species thought to weigh less than 10 tonnes, while the largest species are thought to have weighed more than 60 tonnes.

There is a dinosaur known as the "first dragon in Asia", they mainly feed on tender and succulent plants, and it is the dinosaur with the largest number of cervical vertebrae and the longest neck among all dinosaurs, they are - Mamenxi dragon. Mamenxisaurus is a sauropod dinosaur that lived roughly in the Late Jurassic period 100 million years ago.

The typical feature of Mamenxisaurus is its long neck, which is about 12 meters long, according to the fossils excavated today. The giraffe, which has the longest neck in the world today, has a neck length of only about 2 meters, which is only a fraction of the length of the neck of the Mamenxi dragon.

From the point of view of the number of cervical vertebrae, Mamenxisaurus is far more than giraffes, the number of cervical vertebrae of the former has reached 19, and the number of cervical vertebrae of the latter is only 7, and the cervical vertebrae of Mamenxisaurus are thicker and longer.

However, if you look at the weight of Mamenxisaurus at 40 tons, the neck of this dinosaur must be relatively thin, and the length is also very long. So in order to reduce the burden on the cervical vertebrae, the brain of Mamenxisaurus was smaller than that of ordinary hollows, especially compared to carnivorous dinosaurs that landed on two legs.

As a result, Mamenxisaurus has a lower IQ and lacks basic coping strategies in the face of danger. This is also the reason why carnivorous dinosaurs of the same era like Yongchuan were able to hunt them easily.

On the mountainous plateau in eastern Myanmar, there is a small mountain village called Badang, which is inhabited by about 7,000 people. From the age of five, girls wear their first brass rings around their necks, and as the years go by, the number of brass rings around their necks increases to dozens by the time they reach adulthood. It can reach a height of about 30 centimeters and is decorated with silver-covered chains and coins.

The collar made the Badang woman more than double the length of the neck of the ordinary person, making her the longest neck in the world. In addition to the neck, the Badang women have many brass rings on their hands and closed legs. It is said that this was first done to prevent tigers from harming them, and from generation to generation, this yellow copper ring has become a distinctive symbol of the Batang women.

The length of the neck is generally determined by the patient's genetics, which can determine the length of the patient's neck, and is also related to the patient's growth environment and dietary conditions during growth and development. It is recommended that if the patient has a short or long neck, it may be decided with the above conditions.

Therefore, it is recommended that you do not need to be too nervous, this neck length has a lot to do with the difference in personal physique. If there is a neck muscle injury, it is necessary to pay attention to the symptomatic treatment in time.

The neck actually does not become long, because as long as the person passes the ruler lead the development period. The height is basically the same. But you can make your neck look long through exercises and exercises on the back hand scarcity days.

Here are a few small ways to do this.

1. Do more aerobic exercise. For example, running, swimming. Especially swimming, especially fitness. And the actual amount of exercise is also super large. The biggest benefit is that it doesn't get tired easily. Doing so will give you a well-proportioned figure. It looks like the body is well proportioned.

2. Do more cervical exercises. Doing more cervical exercises has great benefits for increasing the distance between the spine.

3. There is a standing sample, and there is a sitting sample. The so-called stand straight and sit upright. So that the person looks energetic.

If you do this, it will definitely be good for the body, and the neck will look longer.

Giraffes are known for their long necks. The height of its neck and head accounts for more than half of its entire height. Anatomical studies have shown that the cervical vertebrae of the giraffe's neck, like all mammals, have only seven pieces, but each of them is exceptionally long.

The giraffe's long neck is unique in the evolution of the species, so that in the African savannah, they can eat what other animals can't, and the fresh young leaves and buds of the trees in the higher places. However, giraffes and other animals have only seven neck vertebrae, but their vertebrae are longer, one of which is two meters long. A closer look at the giraffe's life shows that the long neck is not in the way of the giraffe's life.

Large male deer can reach a height of up to one meter, and the neck is up to 2 meters long. The two add up to nearly 6 meters. Satisfied.

The neck of the giraffe is considered the longest pull in the biological world. Why Do Giraffes Have That Long Necks? The length of the giraffe's neck is unmatched by other animals, and it has earned it the nickname "long neck".

So, why do giraffes have such long necks? Is it because it has more cervical vertebrae than other animals? The answer is no.

The results of the study showed that giraffes, like other mammals, have seven cervical vertebrae, with the difference that each neck bone of the giraffe is exceptionally long. Why?

Charles Darwin, a British biologist and founder of the theory of biological evolution, believed that giraffes' long necks were the result of natural selection. In ancient times, giraffes' necks were long and short. When there is a drought, most of the plants on the ground dry up, and the rest is quickly eaten up by the animals.

And the deer with long necks who could eat the leaves of the trees on high places survived, and the short-necked ones died. In this way, those who remain are all long-necked. The French biologist Lamarck's view is similar to that of Darwin.

He proposed the theory of "acquired inheritance". According to this view, all traits in the biological world are related to the environment in which it lives. In order to adapt to the environment, living beings strive to use useful organs, and as a result, these organs are developed; On the contrary, organs that have not been used for a long time have atrophied.

According to this theory, giraffes survive in arid areas where pasture is scarce. The leaves of tall trees must be fed with hunger, and for this it requires a special effort to stretch its neck. As this continues from generation to generation, the giraffe's neck grows gradually.

The above two ideas have been accepted by people, but I have a question: "What about other herbivores that can't eat leaves, but still survive?" ”

Why Is A Giraffe's Neck So Long? This question has been discussed for hundreds of years along with the scientific study of biological evolution, but it remains a mystery to this day.