People are always curious about their bodies. Many curious male friends always want to know everything about the body, but there are some cold knowledge that many men will not understand. For example, a male body has an organ whose length can be as short as about 5 meters and as long as about 7 meters. I'm afraid many people will be surprised because it is difficult for a person to exceed 3 meters in height, "The length of this organ has reached 2 to 3 times its height, so where is this organ located in the body?"?
What part of a man is 5 meters long
In fact, this part is the intestinal tract of a man. If you want to ask the question of how long the intestinal tract is, then here is a clear answer. Although it is difficult for us to reach a height of 3 meters, the curved intestinal tract accumulated in our abdomen can reach a length of 5 meters, or even 7 meters.
Moreover, this is only the length of the small intestine. It is important to know that the small intestine is the place where the human body eats small Hu food, which is the longest section of the digestive tract. The food stays in the small intestine for a long time, lasting for about 3 to 8 hours. When the small intestine digests and plays with these foods, it will transmit their peristalsis to the large intestine.
The length of the large intestine is about 1.5 meters, with the small intestine above and the anus below. The feces in the large intestine have no digestive activity, but when the body lacks water, the water in the feces will still be absorbed and transported to various parts of the body by the large intestine, which is also the origin of the disease constipation.
Of course, the large intestine is not just a place to store feces. It should be noted that some foods are difficult to digest and can also be transported to the large intestine by the small intestine. In addition to storing feces, the large intestine also has another important function, which is to convert these difficult to digest foods into feces. It can be said that the large intestine, like the small intestine, is also a factory, but it is mainly responsible for receiving The role of secondary processing, transformation, and excretion.
Intestinal area
In addition to surprising us with the length of the intestine, the area of the intestine can also be surprising, you know? Spread out the intestinal tract, which has an area equivalent to the size of a tennis court of about 200 square meters.
Think about it. Even if we stretch our limbs to the maximum in our lives, the area we can cover is not very large, right? But is it surprising that just a part of the body's intestines can reach an area of 200 square meters?
Of course, in addition to the intestinal tract, there are many knowledge in our body that few people know. Let's take a look together with the editor.
The unknown things in the body
1、 Hair
Dark and beautiful hair is what everyone wants, and many men will create a personalized hairstyle for themselves. But do you know how long hair can grow in a lifetime?
There is evidence that human hair can grow to 9 to 10 meters in a lifetime, which means that if a person does not shave their head from the beginning of their lifetime, their hair will be at least 9 meters long by the time they die. It can be said that the length of hair is one of the best in the body, but do you think hair and intestines are the longest tissues in the body? Obviously not!
2、 Length of blood vessels
As we all know, blood vessels are one of the most important tissues in the body. Without them, blood cannot be transported to various parts of the body, and people cannot survive. The length of blood vessels is also surprising.
"You should know that there are many capillaries inside the human body. Although they are very short, their length can be considerable if they add up to a small amount. The total length of all blood vessels is about 100000 kilometers, which may not be clearly understood. However, if we extend blood vessels in one direction on the earth, they can circle the earth for two weeks.".
In this way, I believe everyone will be surprised that compared to how many individuals can circle the Earth hand in hand, it turns out that there are tissues within our own bodies that can do so, and that we can circle the Earth twice.
3、 The speed of blood circulation
Speaking of blood vessels, we have to talk about the speed of blood circulation, which we often talk about, and blood circulation is very important to the body, but do you know how long it takes to circulate once in the body?
Many friends may feel that if blood is so important in disciplining you, its speed must not be fast, and time must also be certain. After all, slow work leads to careful work! But thinking like this is a big mistake, because it only takes about 20 seconds to cycle through the body once. Is it beyond your imagination?
4、 Time to urinate
Peeing is a thing that can help people protect their health, but do you know how long a person spends peeing in their lifetime? According to research, healthy adult men spend about 36 days urinating in their lifetime, while healthy adult women spend 40 days urinating in their lifetime.