According to Glan's reinvention of the human body, Glan first stated the theory of the composition of the human body that cannot be heard or imagined by people in this realm, and that the basic unit of the human body structure is the cell. There is a non-cellular structure of material between the cells called the interstitium.

Cells can be divided into three parts: the membrane, the cytoplasm, and the nucleus. The cell membrane is mainly composed of proteins, lipids and sugars, which protect the cell.

It maintains the stability inside the cell and controls the exchange of substances inside and outside the cell. Cytoplasm is the center of cell metabolism and is mainly composed of water, proteins, ribonucleic acids, enzymes, electrolytes, etc. Various organelles are also suspended in the cytoplasm. The main organelles are mitochondria, endoplasmic reticulum, lysosomes, centrosomes, etc. The nucleus is surrounded by a nuclear membrane that contains nucleoli and chromatin. Chromatin contains nucleic acids and proteins. Nucleic acids are substances that control the heredity of living organisms.

Nerve tissue is made up of neurons and glial cells and is highly sensitive and conductive. Neurons are made up of cell bodies, dendrites, and axons. Dendrites are short, branching like branches, and their function is to transmit impulses to the cell body, while axons are longer axons that end in nerve endings and have the function of transmitting impulses outward from the cell body.

Myocardial tissue is made up of muscle cells. Muscle cells have the function of contraction. According to morphology and function, muscle tissue can be divided into three categories: skeletal muscle, smooth muscle and myocardium, and connective tissue is composed of cells, interstitial cells, and fibers. It is characterized by loose cell distribution and more interstitial cells. Connective tissues mainly include: loose connective tissue, dense connective tissue, adipose tissue, cartilage, bone, blood and lymph, etc. They have the functions of support, connection, nutrition, defense, repair, etc.

The small circulatory system of the blood, which proves that blood flows from the right ventricle to the lungs, through a tortuous route to the left ventricle. Through a large number of animal dissection experiments, it has been proved that the theory of heart and blood movement and other treatises have systematically explained the law of blood movement and the working principle of the heart. It is also noted that the heart is the center of blood movement and the source of power. This major discovery became the originator of modern physiology.

The human body is made up of eight major systems

Digestive system, nervous system, locomotor system, endocrine system, urinary system, reproductive system, circulatory system, respiratory system, sensory organs

Edit the chemical composition of the human body in this paragraph

Water makes up 65% of the body's weight. An adult weighing 70 kg has only 25 kg left after dehydration, including 3 kg of carbohydrates, 7 kg of fat, 12 kg of protein, and 3 kg of mineral salt.

blood

The total blood volume of the human body is about 8% of body weight. If blood loss exceeds 20% of the blood volume in the body at a time, vital activities are impaired. Healthy people who lose no more than 10% of their blood at a time can generally recover quickly.

muscles

There are about 639 muscles in the whole body. It is composed of about 6 billion muscle fibers, of which the longest muscle fiber is 60 centimeters, and the shortest is only about 1 millimeter. Large muscles weigh 2,000 grams, while smaller muscles weigh only a few grams. The average person's muscles make up 35%-40% of their body weight. The total length of capillaries in the muscles can reach 100,000 kilometers, which can circle the earth two and a half times.

cerebrum

The brain is made up of about 14 billion cells, weighs about 1,400 grams, has a cerebral cortex thickness of about 2-3 millimeters, and a total area of about 2,200 square centimeters, and it is estimated that 1,000 to 100,000 brain cells die every day (the less the brain, the more brain cells die). A person's brain stores information equivalent to 10,000 books in a library with 10 million volumes, and the person who is the best at using his brain will only use 10% of his brain's ability in his lifetime. The main component of the human brain is water, which makes up 80%. Although it accounts for only 2% of the body's body weight, it consumes 25% of the body's oxygen consumption, and the blood flow accounts for 15% of the heart's output, and the blood flow through the brain in a day is 2,000 liters. The energy consumed by the brain is equivalent to about 25 watts if expressed as electricity.

Glenn also spoke of another theory of the composition of the human body, string theory, or string theory, which is a theory in theoretical physics. One of the basic ideas of string theory is that the basic units of nature are not particles such as electrons, photons, neutrinos, and quarks. These particle-like things are actually closed circles of tiny, tiny strings (called closed strings or closed strings), and the different vibrations and movements of the closed strings produce a variety of different elementary particles. Although the scale of strings in string theory is very small, the basic principles that manipulate their properties predict the existence of several large-scale film-like objects, the latter of which are simply called "membranes". String theory is now the most promising theory that unifies the elementary particles and the four interacting forces in nature. String theory is a doctrine in theoretical physics. According to the theoretical physical model, the most basic unit of matter is a small "energy string", from the interstellar galaxy to the electron, protons, quarks, and other elementary particles are composed of these "energy lines" that occupy two-dimensional space-time. In Chinese, it is generally translated as "string". Superstring theory can solve problems related to black holes. Listening to Gelan's theories that are not in this world, Immortal Emperor Bai Hai, Immortal Monarch Qinghai, and White Bone Emperor, the dishes that substantially transform the soul into a face, I don't know what he is talking about at all, however, these are the most basic tones that constitute the human body, and these are still not enough to constitute the human body, Gelan also said a lot of human body reorganization, and Gelan has only one request, that is, the White Bone Emperor provides a way to get out of the soul realm battlefield and return to the Blood Shadow Cave, Gelan knows that it is absolutely impossible to return to the two-way enchantment Yellow Realm from the Blood Shadow Cave, plus Gelan is revenge for his parents, and the subordinates of the first war demon killed their parents and avenged their parents, will definitely fight against the first battle demon, a terrifying monk of the immortal level, and the monk of the second realm is definitely not something that he can easily deal with now. Immortal Emperor Bai Hai, Immortal Monarch Qinghai, and the Essence Soul Creation didn't know the specific method of returning to the Blood Shadow Cave at all, although they knew that there were several large teleportation arrays, but none of the teleportation arrays were teleported to the Blood Shadow Cave or two-way enchantment, this, Immortal Emperor, Immortal Jun, Essence Soul Creation was certain. "This is nothing but your theoretical knowledge, and I can't believe you because of your rhetoric about things I don't understand. "The White Bone Emperor said extremely coldly. Ge Lan said with a smile: "I thought that the white bone senior was a hero with a big heart, but I didn't expect it to be such a timid junior, it really disappointed me too much." "No wonder the Blue Sky seniors would say that the White Bone Immortal Emperor is a junior. "Gelan doesn't give face to the white bones, the Immortal Emperor is not even as good as an ant in front of the sky, but the blue sky lowers his identity and the White Bone Emperor was once a good friend with similar aspirations. "Have you seen the Blue Sky Senior? I saw the remnants of the power of the Blue Sky Clone Remnant Soul on your body, it turned out that the Blue Sky Clone Remnant Soul called you here, okay. I'll trust you for once. The White Bone Emperor said seriously. Ge Lan's heart shook involuntarily, Khan, I knew that Lan Tian could make the White Bone Emperor in front of him look so terrifying so easy to speak, and I had already told him that I knew Lan Tian's clone remnant soul, so I didn't need to spend so much tongue talking. "I still don't believe what the powerful people say, I still have to test you, you can be called an eternal soul maker even now. "The skull of the White Bone Emperor is moving, which makes people look a little uncomfortable. Glan's heart couldn't help but burst, sweat, it is said that it is still necessary to test, what is the difference between this and not saying. "As long as you can withstand the attacks of my men, I will trust you, and the bones of the Green Light Sword Immortal will come out. As the White Bone Emperor spoke, a skeleton glowing green rose from the sea of blood with a rusty sword in his hand. Ge Lan thought in his heart, he was an eternal soul maker, if he couldn't even beat a sword immortal skeleton, he really couldn't say where he went, how to say that the substantive soul creation of the same level as himself had the strength of an immortal emperor, and the strength of the sword immortal skeleton was just the first stage in the five realms of the second realm of asking the sky, Ge Lan thought about it for a while and agreed. As soon as the soul sword in Gelan's hand came out, the sword in his hand rushed towards the bones of the sword fairy with a turn, Gelan knew very well that he only had the peak of the condensation period with the strength of a monk, if he did not count the power of soul creation, facing the bones of the sword immortal level, he would be undoubted, but it was different if he had the power of soul making, Gelan believed that he would be able to break through to the god descending pill when he rebuilt his body and returned to the cultivation realm, Gelan took the method of moving around flexibly, on the one hand, he used the power of soul creation as a defense, and on the other hand, the sword formed by the soul power in his hand was constantly stabbing at the fractured part of the bones of the sword immortal。 The sword immortal skeleton spit out a sword qi from his mouth, the sword qi turned into a rotating shape, and then he lay down and exploded, forming countless sword lights, the sword light cut through the space in an instant, and went straight to Gelan, Gelan gritted his teeth, and drew a wind slash formed by soul power with his hands upward in the sky, and with a roar in his mouth, he slashed, and the endless soul power slashed the blood of the sea of blood straight upwards and cut the scattered sword qi of the sword immortal's bones. Ge Lan flashed away the sword qi of the other sword immortals again, and Ge Lan breathed a sigh of relief at this time, it seems that the strength of the sword immortal when he became a skeleton was also weakened a lot, otherwise even if it was an eternal soul, it would be difficult to support it, after all, Gelan was only newborn, although it had the characteristics of eternal soul making, but after all, it did not have the strength of those eternal soul-making who had gone through endless years. "That's right, you can actually dissolve the sword fairy's scattered sword flower, this is really good. "The skull of the White Bone Emperor is really scary, and it is also terrifying when he speaks. The rusty sword in the hand of the sword immortal skeleton actually attracted the thunder of heaven and earth as a thunder slash straight to the Gelan below, the power of Gelan's soul-making formed a huge shield, it was a lightning bolt falling straight down from the hole, and the thunderstorm fell in the sea of blood, shooting out a lot of cold blood, under the control of the sword immortal's bones, the thunder and blood combined, forming a blood dragon straight to Gelan, Gelan slashed in the sky in his hand, turning the soul-making power into a lightning strike, and the blood dragon collapsed one by one under the lightning strike, Gelan couldn't help but be afraid for a while, being swallowed by this blood dragon, it was definitely nine deathsFrom the cold feeling of the blood dragon when it approached him, it made Gelan feel a little soul shock. Soul wind, Ge Lan will turn the soul power into the power of the style, although the essence of the wind is the flow of air, it is not easy to turn the soul power into the power of the style, but for the sake of his own life, he can't take care of this, the blood dragon used by the sword fairy bones for the second time collapsed under the wind slash of the soul wind, the sword fairy bones obviously did not expect that Ge Lan would come out of this, and in a shock, Ge Lan's soul wind was slashed on the body of the sword fairy bones, and the bones of the sword fairy bones with many cracks were even more broken, but this did not defeat the sword fairy bones, the sword fairy bones were like a monster that was not afraid of pain, and there was no reaction at all。 At this time, it is not a time to relax, but Glan does not dare to be distracted at all? Ge Lan's mind was divided, the soul body was in a turn, the sword fairy bones actually attacked the flame sword, Ge Lan shouted in his heart that it was not good, the soul body was constantly shaking, Ge Lan forced out the soul power with all his strength, and the soul sword in his hand was even more urging the soul power to send out a lot of soul light, and only then did he dangerously block the flame sword of the sword fairy bones, but the impact of the flame sword still hit Ge Lan Fei into the bone wall, and the bone wall was also melted by the soul power of Ge Lan, and Ge Lan's soul body was really uncomfortable, the power of the flame sword of the sword fairy bones shocked Ge Lan's soul body almost unstable, and the huge flame power rushed into Ge Lan's soul body, and the composition of Ge Lan's soul body also broke through a lot, If it weren't for Gelan to raise the power of soul creation to the extreme to block, Gelan would be the soul flying away, becoming the first eternal soul creation soul scattered, originally with the skeleton of the sword immortal bones of this level it is impossible to deal with the eternal soul making, but under the influence of the blood sea and the blood sea array, coupled with the influence of the power of the Immortal Emperor of the White Bone Emperor, the soul creation power of Gelan has been greatly affected. But the sword fairy bones did not let go of Ge Lan because of this, the flame sword in the hand of the sword fairy bones made an endless power of fireworks and went straight to Ge Lan, like a raging wind slashed straight towards Ge Lan's somewhat unstable soul body, Ge Lan felt bitter in his heart, his soul power was far from recovering, this time it's okay, it's here again, but Ge Lan will not just wait for death, Ge Lan condensed a large amount of soul-making power in front of him, and only then did he block the flame sword of the sword fairy bones. "Frozen for thousands of miles, you can block the flame power I emitted, but whether you can block my ice power, I have to praise you, it's just that the newborn Eternal Ancient Soul can fight with me, the strongest sword immortal, to such an extent. The sword immortal skeleton spoke for the first time, and the five slightly cracked hand bones in his hand pointed forward, and an incomparably cold wind shot out countless ice cubes in the wind. But Gelan did not give up because of this, there is no word to give up in Gelan's mind, for the opponent of the sword immortal level, Gelan has never despised it, the soul-making power in Gelan's hands has formed a condensed soul-making ball under Gelan's extreme compression, this is the strongest killing move that Gelan has come up with, Gelan has not been able to stabilize the unique soul-making power of the eternal soul-making at all, this eternal soul-making soul ball can be said to be condensed by his desperate efforts, this can be said to be Gelan's desperate move, when the sword immortal bones will be frozen for thousands of miles, Gelan will compress all the soul power, that is an endless compression, for Gelan, Can you defeat the sword fairy bones, Ge Lan didn't think about it so much, the endless blood-red world showed that Ge Lan was condensed by soul power into a soul-colored ball of light, the original soul ball was like an ordinary fireball, the water ball did not emit much powerful breath, but then the light was great, and the sword fairy bones were also a little unable to open their eyes under such a strong light, although it was just a skeleton, a hollow eye hole, and there was no so-called eye, but it also made the sword fairy bones press on the forehead with their hands to block. Those soul balls compressed by the endless soul-making power were under the deliberate control of Gelan, and their shapes turned into like an invincible sword in an instant, directly cutting the frozen ice fairy swordsmanship of the sword immortal's bones. Under the endless thunder, the frozen thousands of miles instantly turned into water, and was once again evaporated into gas by the power of soul creation, and the power of soul creation of Gelan was also consumed a lot.