The human body consists of various organs that perform one or another function. Eyes, for example, allow us to see the world around us - the shape of objects, colors, people and more. Those who do not show interest in anatomy do not know that the eye has a perfect structure and provides vision in three dimensions and with the highest sharpness ...
Some people do not like it when they look into their eyes, and there is an explanation for this - they are, as they say, “the mirror of one's heart"To look into it, you first need to create a trusting relationship ...
Well, what are we all about eyes ?! There are no less interesting organs: the liver, spleen, kidneys, for example. Let's learn more about them. We bring to your attention a list of the 10 largest human organs: large and heavy internal parts of the human body - information for the 4th grade.
10. The colon
The intestine not only supplies us with nutrients, but also removes harmful substances from the body. It also helps maintain immunity. The intestine includes several sections: small intestine, rectum, colon, duodenum.
Our focus is now on colon –– a large organ of our body. It is located around the perimeter of the relatively thin, and in shape resembles a frame. Its main function is to absorb water from the remaining mass and accumulate feces for their further excretion from the body.
9. The spleen
Spleen it is a kind of “filter” of our body. It absorbs and processes bacteria that enter our bloodstream, as well as other harmful substances. It produces antibacterial bodies.
The spleen is one of the largest organs, it is very important for maintaining immunity, in addition, it contains a supply of blood - when necessary, the blood enters the systemic circulation of the body.
The mysterious organ, about which not much is known, also accumulates iron, which is converted into hemoglobin, promotes good digestion and affects the nervous system.
8. Stomach
In the upper abdomen there is such an important organ as stomach. It is a muscle sac providing a favorable environment for the breakdown and digestion of food.
The shape of the stomach changes with age, there are only 3 of its forms: stocking, hook and horns. On average, the length of the stomach along its long axis is 22-25 cm. The stomach contains 3 liters. This organ can be called part of the digestive tract, and, of course, its important link.
The stomach is located in front of the duodenum and is a continuation of the esophagus. It is in this organ that the thickest region of the muscle layer is located.
7. The kidneys
The vital human organ are the kidneys. This is a paired organ, which is located in the retroperitoneal space on the sides of the spinal column.
The kidneys form urine. The boundaries of the location of these important organs vary even within normal limits - most often the left kidney is located slightly higher than the right. One organ weighs approximately 100-200 g., Width - 5-6 cm., Length - 11-12 cm., Thickness - 3-4 cm. If the organs are noticeably deviated from these sizes, then this is a sign of pathological changes.
Anatomically, the organ resembles beans in appearance. The main function of the kidneys is excretory. They form the urine, along with which toxic products are washed out of the body.
6. Lungs
Lungs, like the kidneys, is also a paired organ. We owe our every breath to this most important organ. In the lungs, gas exchange takes place, thanks to which our body is saturated with oxygen and removes spent carbon dioxide from the body - everyone knows this from school textbooks.
The right lung is slightly wider than the left and shorter. This structure is quite natural, because in the left and partially central chest cavity there is a heart. On the left lung there is a certain notch, thanks to which the heart feels quite comfortable. The left lung is a kind of cushioning pad that protects the heart from mechanical damage.
The shape of the organ resembles a cone - it has a base and apex. The breathing process is quite an interesting phenomenon, because we do not even notice how we breathe. The brain decides how much air it needs.
However, a person himself can learn to control his breathing, for this there are even special techniques that can help relieve stress, remove pain and even get rid of unnecessary emotions.
5. The brain
An amazing three-pound organ located inside the skull - brainalways attracted and attracts scientists. This body is the main one. It is he who is responsible for the work of other bodies. Despite the fact that the brain is constantly being studied, much still remains a mystery in its work ... People have only a superficial idea of how it works and conveys information.
The bulk of the brain is made up of cells called neurons - they create electrical impulses and transmit data. Neurons consist of a body and processes of two types: dendrites and axons. The former receive momentum, and the latter transmit.
The brain is responsible for emotions, creativity, memory ... And this is only part of the things that are controlled by the brain. It is very important to take care of him, to solve various problems - that which does not receive attention will atrophy over time.
4. Heart
What do you imagine when you hear the word a heart? Surely something romantic comes up in your imagination connected with feelings ...
The heart that is drawn is a symbol of love, but the organ looks different. There is a version that the symbol of the heart appeared in Ancient Greece, as a symbol of femininity, beauty, and he represented nothing more than a reproduction of the female breast and buttocks.
In many cultures, this organ is considered the seat of the soul, a place where love and affection arise, but in fact it is more prosaic ... The heart is a voluminous muscular organ the size of a fist of its carrier, weighs about 210 g in women, and up to 380 g in men.
When a person is born - his work does not stop even for a second. Pumping blood, the heart supplies all tissues and organs with oxygen.
3. The liver
Liver one can rightly be called a unique organ of our body, because it performs many functions. The liver is the largest organ in the digestive system. If the conditions are favorable, then the body can renew itself.
The liver is located in the right hypochondrium under the diaphragm, its weight depends on the age of the person, in an adult it is approximately 1500-1700 g.
The liver is a multifunctional organ, its most basic functions are: normalization of carbohydrate metabolism, secretion of good cholesterol, detoxification, production of part of the immune cells, etc.
2. The small intestine
The small intestine in the structure of the intestine is the longest section of the digestive tract, consisting of two sections. Small intestine forms a large number of loops and passes into the colon. Its length is approximately 2.6 meters. Anatomically, the small intestine is divided into three sections: jejunum, duodenum, and ileum.
Food mass passes through the small intestine in about 4 hours. During this time, the nutrients that are contained in food are broken down by the enzymes of the intestinal juice into smaller constituents. In the small intestine, digestion also involves the active absorption of nutrients.
1. Leather
Our list is completed by a body such as leather. It performs a protective role, as well as a number of other biological functions. Skin covers our whole body. A healthy adult has a total skin area of up to 2 square meters. meters, and weight up to 6% of the total body weight.
The condition of our skin depends on such factors as: nutrition, age, lifestyle, etc. The skin includes three layers: the epidermis, dermis and subcutaneous fat. Each of them includes several layers.
Interesting fact: all the cosmetics that we use affect only the upper skin layer - the epidermis.