The first photo shows that there are more than 100,000 hairs on the head of a normal person, and the picture below shows what human hair looks like under a microscope
Second: Human skin and hairs growing on it as seen through a microscope look like some dry weeds growing on extremely arid soil
Number three: A large number of red blood cells are pouring out of the wound on the human body, which is the fundamental reason why you see red blood coming out of the wound
Fourth: A drop of clotted blood, the red part is red blood cells, the white part is white blood cells in the middle, and those silk mesh presence is fibrin reticulum
Picture 5: Damaged tooth enamel, when too much sugar is eaten, acids and bacteria will slowly erode the surface of the tooth enamel, and when the tooth enamel is damaged, caries will be formed
Sixth: A cross-section of human muscle tissue, which looks very tough
Picture 7: Human excrement under a microscope, where bread contains more than a billion intestinal bacteria, which are the main means of human metabolism
Picture 8: Human nerve fibers seen through a microscope, they appear as regular cylinders, and they are arranged in a certain order
Picture 9: An egg is surrounded by hundreds of sperm, they are trying to enter the inside of the egg, when one of them enters smoothly, the other sperm will no longer have a chance to enter, it is really a very magical setting, of course, if you go into two at the same time, then it will develop into twins
Tenth: The magic of melatonin, when the sky is dark, the human eye will transmit this received information to a special gland, at this time the gland will produce a large amount of melatonin, their role is to promote human sleep, when a person is old, the function of the gland will degenerate, melatonin will be reduced accordingly, and this is also the root cause of lack of sleep in the elderly
Picture 11: Neurons that are trying to make connections, as long as they can connect smoothly, will help humans solve a problem at hand, which may be 1+1 equals, or it may help someone win the Nobel Prize
Twelfth photo: This is the balance stone in the human ear, they are mainly composed of calcium carbonate crystals, the main role is responsible for the balance of human beings, there are super sensitive tentacles on these balance stones, they can feel the influence of acceleration and gravity, when these phenomena occur, they will transmit the received information to the brain, the brain will control the human body to make timely adjustments, in order to maintain the balance of the body
Thirteenth: This is not a cave on a mountain, but pores on the human body, and there are millions of pores on each person's body, generally about 0.02-0.05 mm in diameter
Fourteenth: the legendary "adrenaline", usually they only exist in a small amount in the human body, when an emergency threatens the human body itself, they will begin to secrete a large amount, and promote the capillaries and lungs to begin to contract significantly, so that people can be highly concentrated, and the strength of the muscles will be greatly enhanced, in order to deal with the immediate emergency
Picture 15: The myocardial tissue, magnified several times, begins to work officially from the moment it grows until the end of human life, during which time they continue to work all day long, even if the human being itself has fallen into an unconscious state
Picture 16: When a human tooth is enlarged, you can see that it is covered with honeycomb-shaped holes, which are not as strong as we think
Photo 17: Human skin under the microscope, when magnified to a certain extent, you will see that they are actually exactly the same as scales
Picture 18: Male sperm factory, what you see is the sperm cells (yellow part) inside the seminiferous tubules of the male testicles, where human sperm is produced
Picture 19: The eukaryotic cells are magnified and look like a very prosperous metropolis
Picture 20: When the human tongue is magnified to 10,000 times, you can see all kinds of bacteria living on it very clearly, which is really scary, so scared that I quickly brushed my tongue
Twenty-one: The human body is extremely complex, and each component has its own characteristics and functions, which makes it hard to believe that human beings have evolved