Although the human body is full of unknown mysteries, the brain is the ultimate organ of this highly intelligent creature that was first active in the solar system, and the emergence of light and darkness in the earth human civilization and the Glysian human civilization, as well as other human colonies, was born.

"The rounded shape of the skull distributes external forces, and although it is thin, it protects the brain well, which is why the thin shell structure used in the construction of the space station is also born. It's the same with hand-pinched eggs without breaking them, so don't think there's a way to break the skull in one blow. ”

Speaking of this, the man in white suddenly swung his knife at Xia Chenghao, and the blade stopped a centimeter away from his neck, and behind him was an exclamation from the other partners.

He yelled, "Pick it up!" ”

Xia Chenghao squatted down helplessly, gritted his teeth and picked up the huge head, the man in white took it, the blade that flashed cold light gently circled the skull, removed the scalp with his hand, and flipped it over with the lead Tianling Gai, which looked like a coconut bowl that had just been filled with blood.

Once again, the children's stomachs began to tighten suddenly, and their expressions became more and more distorted.

The man in white handed the lid of the coconut bowl to Xia Chenghao.

The child had no idea what kind of courage it had taken to hold it, and what strength it had used to hold the bowl close to his eyes, and to feel the bumps with his heart.

"As for the distribution of nerves in the brain...... the man in white didn't finish speaking, he pressed the button next to the bed, and the half-cut corpse that had been dissected in a mess and had lost its head suddenly stood up.

The children couldn't hold back any longer, and they all screamed and fell backwards.

The man in black coughed heavily, a reminder that anyone who backs away or screams again will be nailed to the countertop as a test subject.

"There are 12 pairs of cranial nerves and important arteriovenous channels, each of which is related to the important functions of the human body." The man in white lightly clicked in various positions, and the laser knife danced on the brain tissue like the baton in the hand of a great conductor.

The children didn't say a word, just memorized by heart.

"The central nervous system includes the spinal cord and the brain, and the spinal cord is the bridge between the brain and the peripheral nerves, and can complete simple reflex activities, which is the main purpose of physical training." The man in white pointed to the silk white thread sticking out of the corpse's neck, and Xia Chenghao couldn't help but shrink his head, as if someone was blowing on him from the back of his neck.

"Do you remember them all?" The man in white swept over all the children's faces, and the light on the glass mask made the eyes of the children who happened to be pointed at several angles sting.

Xia Chenghao nodded in memory.

The importance of the head to people, every child is very aware of it, at the beginning of the fight with the little friend, when you can't beat it, you will involuntarily pick up your head, this is no one to teach, it is an instinct of all creatures.

The reason why the man in white talks so much about the head is because this organ will play a vital role in the survival of the cleaners in the future. Thinking about problems, protecting lives, and striking at the enemy are all in the head.

"These things are called brains." The man in white scooped up a piece of tofu-like stuff with his hand.

With the gurgling of fluid, he continued, "The brainstem includes the extended brain, pontine brain, and midbrain. The cerebellar is above the spinal cord and the dorsal side is covered with the cerebellum, respiratory and digestive systems; The surface of the cerebral hemisphere is covered by a large number of nerve cells and unmyelinated nerve fibers, called gray matter, that is, the cerebral cortex, and the inner surface of the cerebral hemisphere is composed of white matter composed of the medulla of a large number of nerve fibers. ”

Speaking of this, there was another flash of cold light in the hands of the man in white, and Xia Chenghao seemed to hear the sound of a slap in his mind, and he couldn't take his eyes off watching the tofu-like thing being cut.

"Space is limited, so the surface of the brain must produce folds, the more represents the smarter, the depth of the furrow represents the higher IQ, the cerebral cortex is acquired, and it is also the main factor that leads to individual IQ differences. You are the child with the deepest brain groove on the planet Griss. ”

Xia Chenghao couldn't answer a word, and he couldn't answer it, he was most afraid of being asked questions now.

The man in white shook his head, looked at Xiao Chenghao with a chuckle and said, "Among your peers, you can basically be regarded as geniuses. If you knock your head open, it should be very deep and wide. ”

Sure enough, he was holding a scalpel and pointing it at the children, slowly moving his wrists one by one.

Xia Chenghao wanted to retreat backwards to avoid the scalpel that the man in white might swing at any time, but in the end he held back, and retreating meant his life.

"So, who of you knows what genius is?" The man in white asked disdainfully.

"Genius is a little inspiration and ninety-nine drops of sweat." Someone quickly replied that tens of millions of books were downloaded from the host of the Super Academy, and they were all written like this.

"Gone?" The man in white asked curiously.

Everyone shook their heads, and that's all the book said.

Hearing such a short answer, the man in white was obviously a little angry, and his tone became very strange, "One percent of inspiration is much more important than ninety-nine percent of sweat, without inspiration, one hundred percent of sweat is just water, and it is worthless wastewater." ”

Everyone was nodding their heads, as if they were realizing.

"Everybody walks up and touches this brain and gets a first-hand feel for what is the source of human thought."

Xia Chenghao was the closest, quickly stretched out his hand, and gently pressed it on the tofu-like thing a few times, and the mucus left on his hand was very disgusting.

"Doesn't it feel like tofu?" The man in white looked at Xia Chenghao calmly, if he usually looked like a demon, then today's performance even a real demon would feel that he was an angel and could not reach the demon level.

Xia Chenghao could only nod, unable to express anger or fear at this time.

"Want to throw up?"

"No!" Xia Chenghao replied simply, he couldn't help but close his mouth quickly, and if he said one more word, he would spit out the contents of his stomach. I held back and reached out again, this time for a little longer, and my sticky fingers didn't feel as bad as before.

One by one, the children also came up and felt the brain tissue.

Another purpose of the man in white is to challenge the children's tolerance to see how strong their psychological tolerance is.

"The left and right hemispheres of the brain function differently, with the left hemisphere responsible for speech, reading, writing, arithmetic, and logical reasoning. The right hemisphere is mainly responsible for perceiving space and managing emotions. If a mission only asks to shut up the other person without dying, you can do it in the left hemisphere. ”

The cold light jumped again, and the man in white motioned to everyone to pay attention: "Look at this piece of gray matter." ”

"What is this?" Xia Chenghao hurriedly asked, this should be a kind of politeness, although the man in white will continue to say it without asking, so it can show that he is listening attentively.

"It's a mouthpiece." The man in white was a little proud, and he could hear it from his tone.

Xia Chenghao looked at the extremely small area with a curious expression, and then went to feel his mouth, and covered it by the way to avoid being picked up by the man in white.

The tip of the man in white's knife had already pointed to another small dot, so small that it was impossible to see clearly. Xia Chenghao looked dazed, he still didn't take his hand away from his mouth, and he might spit it out if he moved away.

"This is the part of the brain that manages the genitals." The man in white said lightly.

Xia Chenghao immediately let go of his hand and quickly touched the position between his legs to protect it.

How is it so small? Xia Chenghao thought in surprise.