ancient greece mediterranean ruler

Chapter 348 Davos’ academic speech
Based on this, Dionia is the place that Greek doctors yearn for.

Davos broke open the outer skin of the mandible and neck of the model, revealing the passage inside: "Please see, the passages for the mouth and nose merge into one here, and then split into two passages——"

He pointed to the hose made of tanned leather: "We all know that the nose is used to breathe air, but the mouth not only breathes air, but also eats and drinks water. Air and food each go through their own channels, and After long-term observation by doctors at the medical school, they believed that this tube carried air, so they called it the trachea. The other channel behind it carried food and water, and we called it the esophagus. Everyone, touch yourself Under the neck, the hard bumpy area under the skin is the trachea.

The Gentile doctors below the pulpit actually touched their necks with their hands to experience the trachea that Davers was talking about.

"Some people may ask that when the openings of the esophagus and trachea are connected together, wouldn't food and water easily enter the trachea?" Davers said, seeing many people nodding, so he smiled: "Facts It is almost impossible. There is a very soft bone at the opening of the trachea. When we swallow, it will automatically cover the opening of the trachea and prevent food and water from entering the trachea. If you have If you are interested, you can come and take a look at the end of the meeting. Under the guidance of doctors, our Dionia craftsmen have made this human body model with exquisite skills and it is quite accurate. However, don’t break it, this model is No amount of money can buy the treasure of the medical school! Am I right, Helps?"

"Yes, Teacher Davos. We usually only use it when teaching, and usually no one touches it." Helps said with a smile.

After what Davos and Helps said, the foreign doctors were all itchy and stood up one after another, looking at the mannequin next to Davos. The scene was a little chaotic.

Davers continued to ask: "I heard that the young doctor Critos of the medical school discovered this cartilage. For this reason, he also specially dissected living pigs and sheep, and carefully observed the movement of this cartilage. And mechanics, right?”

"Yes." Helps nodded.

"Is he here today?" Davos asked with a smile.

"coming."

"Then, please Dr. Critos, please stand up and let everyone get to know each other." Davos smiled and said loudly.

Critos stood up shyly under the push of his colleagues.

"Let us thank Kratos for this important discovery with warm applause!" Davos applauded first, and then the audience burst into applause, and his classmates even whistled excitedly
Critos was both nervous and excited.

Lycasus looked at Critos standing in front with envy: This doctor who looked about the same age as him was shyly accepting the applause of the audience. When would he become as famous as him in Greater Greece? Isn't he always an apprentice like a slave every day?
"Critos, I hope you will make more discoveries and make greater achievements in medicine!" Davos encouraged him enthusiastically.

The scene of a young man encouraging another young man in an elder's tone may seem ridiculous, but most of the doctors present did not think so.And Kratos was so excited that his chest rose and fell sharply: "Okay... okay, Teacher Davos!"

After Critos sat down, Davos continued: "If you sometimes eat carelessly, you will suddenly choke and cough. This is actually because the cartilage does not cover the trachea in time, causing food to enter the trachea; if a mother hugs her, she will If a baby comes to see you for medical treatment and tells you, 'The child keeps choking and coughing when drinking milk', in fact it may be because of this reason..."

What Davos said made the Gentile doctor remember it silently in his mind, confirming the similar cases he had seen before.

"The air enters an organ along the trachea. After many dissections at Dionia Medical College, this trachea is called a lung." Davers said, opening the chest of the mannequin and disassembling the left lung carved from wood. , show it to everyone.

"As a result, the medical school's anatomy found that there is a lung on each side of our body, which is like the pig urine bubbles that children play with. When you inhale, air enters, and the lungs expand; when you exhale, the air is discharged. The lungs will shrink. You may find it strange that the air enters the lungs from the mouth and nose, and then is exhaled from the lungs through the mouth. It just goes around in a circle and returns to the original point. It seems meaningless. But let me tell you, we Your body is the most precious treasure given to the world by the gods. It is very wonderful and will never do anything meaningless!"

Davos looked around at the doctors in the audience and saw that they were all listening attentively, and said seriously: "After many dissections of corpses in the medical school, it was discovered that after the trachea enters the lungs, it continues to separate into thinner tubes. Like the branches of a big tree branching out, how big is the trachea we can see at the end?"

Davos pulled a hair from his head and said, "It's that big! And what is the end of such a small trachea? Who can tell me?!"

At this time, a young Dionian doctor stood up: "It's blood vessels! During the dissection, we found that there were many similarly small blood vessels intertwined with these tracheas. These small blood vessels are two large blood vessels from the heart. Continuously differentiated..."

"So, what are these two large blood vessels from the heart used for?" Davers continued to ask.

"They come from different places in the heart, one is responsible for pumping blood into the lungs, and the other is responsible for collecting blood back from the lungs."

"Any other obvious differences?"

"Well... there is one blood vessel that pumps out blood, and two blood vessels that collect blood back..." the young doctor replied hesitantly.

"That's different, isn't it?"

"Uh..." The young doctor blushed and couldn't answer.

"Thank you for your answer. What's your name?"

"Strombs of Dionia Medical College."

"Thank you for your wonderful answer, you said it well!"

Strobus, who was slightly depressed, smiled again when he heard Davos' praise.

"Everyone, the air circulates in the lungs and then goes out. The blood circulates in the lungs and returns to the heart. If nothing happens, then our bodies are so boring that they are idle all the time. Is it possible to do such a meaningless thing?!" Davos asked, causing everyone to ponder, and at the same time he answered categorically: "Of course it is impossible! There must be something magical happening between the air and blood in the lungs. The reaction is just invisible to our naked eyes, just like we can't see what makes our wounds infected. So what is this reaction? How important is it to our bodies?"

When the doctors heard this, they all showed great interest. While thinking, they pricked up their ears to listen to Davos's next speech.

Davos smiled: "Although I don't know what reaction occurs between blood and air, we can discover the existence of this reaction through certain phenomena. Helps, have you ever carefully observed the blood in humans or animals? ?Can you notice any difference in the blood?"

"Blood?" Helps was lost in thought.To be honest, Davos did not inform him of the topic of today's speech in advance. Like everyone else, he was accustomed to transparent air and had not thought about this issue in depth.In addition, in the past two years, he has been the director of the Ministry of Health, and concurrently served as the director of Thurii Hospital and the Dean of Dionia Medical College. As his administrative duties increased, he no longer had time to do medical research.

Next to her, Stacey Kordas was also deep in thought.

"Oh!" Someone suddenly remembered something and shouted: "It's the color! The color of blood!"

Davos looked intently, and it was Kritos who was speaking. He looked at this thoughtful and creative young doctor with admiration, and then quickly withdrew his gaze: "Yes, it is the color of blood! Medicine Doctors in the hospital, as long as you have done animal vivisections in this area, you will find that the dark blood enters the lungs, and when it is brought back to the heart by another blood vessel, the blood has turned bright. In the lungs there is only The air and blood are flowing, so something in the air must have entered the blood, which is why the color of the blood has changed! And this kind of thing... what effect does this invisible thing enter the blood?"

Helps, Stacey Cordas, Critos...all the doctors, including Lycasus, were staring at Davos closely at this moment, holding their breath for fear of missing any word.

Davers' expression also became serious: "We noticed that the blood returning to the heart is pumped to the whole body by the heart, and the bright red blood is reflected in our body. Our lips are red, and our lips are red. Our fingers are red, and our face will turn red after exercising... But when we see a person with these characteristics, we can easily judge this person based on our years of medical practice They are very healthy and energetic. And we sometimes meet such patients, their lips are black and purple, the ends of their hands and feet are black, their faces are blue, and they walk tremblingly... We can easily judge that this person is sick , and very sick. Isn’t this the change in the body when these two bloods are mixed with and unmixed with this kind of thing from the air?! Can we think that this kind of thing is like food to the body? The human body is indispensable, it makes us healthy and energetic?! Can we also make such an inference for this kind of patients with purple lips and black fingertips, their trachea, or lungs, or enter the lungs The blood vessels in the blood, or the blood vessels returning to the heart, there is a problem in one of these ways, so that this kind of thing in the air can't reach the whole body through the blood?!..."

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(End of this chapter)