Happy New Year everyone, bonus chapter for all of you! 
This course from the Faculty of Biological Science was to let them participate in the process of human birth as cells. Before, there had been no clear concept in everyone’s mind, and their brains were in daze. It was not until this moment, hearing the ‘thump’ sound of the baby’s heart beating, that they finally had a sacred sense of ‘creating new life’.
In particular, this baby’s heart was personally made by Xu Yishen!
The sound of a regular heartbeat had encouraged everyone. Yue Xingwen turned his eyes, looked at Jiang Pingce next to him, and said with a smile, “Our baby has a heartbeat!”
Jiang Pingce: “…En.”
Everyone: “????”
Why was it a little strange to listen to the conversation between the two of you?
Ke Shaobin suddenly said, “Do you all feel that the baby’s heart is beating so fast? That’s more than 100 times a minute, right?”
Liu Zhaoqing explained, “The heart rate of a normal adult is 60 to 70 beats a minute, but the heart rate of a baby will be very high, and more than 100 is normal. The heart beats fast in order to supply blood to the baby’s whole body and allow the cells to grow rapidly.”
Ke Shaobin suddenly realized, “Oh, that’s good. I was worried that the baby might have a congenital heart disease.”
Xu Yishen’s voice came from the position where the heart was beating. “Don’t worry, I’ll keep a good eye on the internal structure of the heart.”
As soon as the words were spoken, a mechanical voice once again sounded in everyone’s ears: “At 6 weeks of pregnancy, the heart beats regularly, begins to divide the ventricles, and supplies blood to the fetus throughout the body. The cells of the fetus divide rapidly, the embryonic form’s kidney develops, and the neural tube begins to connect to the brain and spinal cord.”
As the prompt fell, a large number of passages appeared in the ‘fetus’ model space where everyone was.
Xu Yishen asked, “The fetal heart, at first, is only divided into the left atrium and the right ventricle, and will gradually be divided into left and right atriums and left and right ventricles* in the later stage. Senior brother Liu, am I remembering it correctly?”
Liu Zhaoqing said, “That’s right, first divide into atrium and ventricle, and form an atrioventricular valve between them to ensure that the blood can only flow in one direction and not in the opposite direction; In the later stage, the atrium form an atrial septum, divided into left and right; The ventricles form a ventricular septum, divided into left and right, before the entire heart is considered developed.”
Xu Yishen said, “That is, to ensure that blood can only flow from the atrium to the ventricles?”
Liu Zhaoqing replied, “Yes.”
A special valve between the atria and the ventricles called the atrioventricular valve, which acted as a switch that opened only towards the ventricles, ensuring that blood could only flow from the atria into the ventricles, and when flowing in the opposite direction, it was blocked by the valve.
Xu Yishen quickly found the valve area and quickly made the atrioventricular valve of the heart according to the regional cues.
The next moment, they heard a mechanical voice say: “Please establish a whole body blood circulation network and unblock the blood vessels and let the fetus form an independent blood circulation.”
Xu Yishen was also in charge of the circulation system. Hearing this, he could not help but have a headache, “Blood vessels all over the body? I can’t even remember exactly how many there are.”
We’re sorry for MTLers or people who like using reading mode, but our translations keep getting stolen by aggregators so we’re going to bring back the copy protection. If you need to MTL please retype the gibberish parts.
Liu Zhaoqing suggested. “Build the large blood vessels first, and get those capillaries slowly later.”
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Liu Zhaoqing praised, “Yes, the complete pulmonary circulation is like this, exiting from the right ventricle and returning to the left atrium. You fix the pulmonary arteries and veins first, the capillary network can be worked on slowly, the fetal lung tissue is not yet developed.”
Xu Yishen hummed to reply and began to work on building blood vessels.
Not far away, seeing the busy senior brother Xu, Zhang Xiaonian could not help but whisper, “Creating a child is really a huge project, we are about to become a human body construction team.”
Ke Shaobin said seriously, “This child’s body condenses the hard work of 12 of us, and our child must be good-looking, smart and healthy.”
Xin Yan said lightly, “And also eat very well.”
Ke Shaobin: “…”
Xu Yishen soon established the pulmonary circulation pathway, followed by the establishment of the ‘systemic circulation’s pathway.
Liu Zhaoqing reminded at the side, “Systemic circulation, exiting from left ventricle, through the aorta to the systemic vessels, and then from the superior and inferior vena cava back to the right atrium. First, fix these three major large vessels, alternating at a later stage. The fetus has to establish a complete blood circulation system after the ventricles and atria are separated.”
Xu Yishen was busy for a few moments, finally unblocking all the major large blood vessels, and he said with a smile, “Creating a baby is exhausting! The blood vessels are done, I’m going back to the heart to split the blood cells and prepare to transport the blood.”
Liu Zhaoqing said, “What about the kidney? Who is responsible for the urinary system?”
Everyone looked at each other—— it seemed that no one was assigned to be responsible for the kidneys just now, right?
Ke Shaobin said in a low voice, “Everyone hurry up ah, the baby can’t do without a kidney!”
Everyone: “…”
Xu Yishen said, “The urinary system belongs to the mesoderm. Xingwen, Pingce, which one of you two will come?”
Jiang Pignce said calmly, “I’ll come.”
Two nascent kidneys, formed during the 6th week of fetal development, and with the kidneys, the fetus can slowly build its own urinary system.
Although Jiang Pingce was not a medical student, he probably knew the location of the kidneys, and after rolling all the way over, he really saw two pea-shaped markings—— To make it easier to distinguish the location of the different organs, the library has drawn the corresponding organ figures inside the fetus and marked them with a soft bright blue light.
In this way, everyone would not create a monster baby with a liver growing out of the heart position.
Jiang Pingce split quickly, allowing the cells to fill the area of the two kidneys.
At the same time, due to Xu Yishen’s efforts to create blood cells, the fetus’ blood circulation was officially established, and everyone could only see the red light slowly flowing along Xu Yishen’s unblocked blood vessels, and with each heartbeat, the fetus began to supply blood to its entire body!
Once again, the mechanical voice rang in their ears: “At 7 weeks of pregnancy, the facial organs begin to develop, the outline of the eyes appear, the nostrils are wide open and the ears are sunken. Young buds of the hands, feet and limbs form, and the muscle fibers and pituitary gland begin to develop.”
Hearing this, everyone began to get busy.
Lan Yarong was responsible for the skin of the fetus, and Xu Yishen reminded her, “Senior sister Lan, the skin needs to wrap the whole body of the fetus, and you have to follow the outline of the body from the head.”
Lan Yarong said, “I understand.”
However, the structure of the skin was more complex, divided into epidermis, dermis, and subcutaneous tissue, the epidermis alone had many kinds of cells. Liu Zhaoqing said, “The ectoderm is responsible for the epidermis, from the inside to the outside, divided into basal layer, spinous layer, granular layer, transparent layer and keratin layer. Senior sister Lan has to work hard, you have to differentiate into five layers of cells.”
Lan Yarong: “…”
Sure enough, she saw five passages on the periphery, each of which had to surround the baby.
She would really fight for the sake of the baby’s skin!
However, what the characteristics of the different layers of cells were, she had absolutely no idea, and could only ask for advice in vain, “I start to build the skin barrier from the innermost layer, and the innermost layer is the basal layer, right? What do the cells look like?”
Liu Zhaoqing said, “It looks like a column, columnar epithelial cells.”
As a result, Lan Yarong chose and split into cylindrical cells at the basal layer. The round and rolled senior sister Lan suddenly became a tall column.
After seeing this scene, Liu Zhaoqing could not help but smile and said, “Congratulations, from a sphere to a column.”
Lan Yarong: “…”
She finally finished all the basal layers, and there were four more to come!
Lan Yarong asked helplessly, “What about the fourth layer?”
Liu Zhaoqing said, “There are many protruding spinal cells.”
Lan Yarong asked, “What about the granular layer?”
Liu Zhaoqing: “This layer, you have to become a spindle-shaped cell.”
Lan Yarong’s voice was weak as she said, “The second layer, it’s the transparent layer, right?”
Liu Zhaoqing: “This layer is flat cells.”
Like a ball that had been deflated, senior sister Lan instantly flattened out and turned into the flat senior sister Lan. Liu Zhaoqing wanted to laugh a little, it was really hard for her, changing into many kinds of shapes back and forth.
At the last layer, Lan Yarong was so exhausted that she was about to lose her breath, and spoke with a voice as if she was critically ill, “The last—layer… what kind of shape do I need to change for the outermost layer of skin?”
Xu Yishen smiled and narrowed his eyes, “The exfoliation that you girls often say when you use skin care, and this is the layer.”
Liu Zhaoqing said with a smile, “This layer is also flare cells, thanks for your hard work!”
Senior sister Lan, who had been flattened, finally finished building the outermost layer of the skin barrier and lamented, “Usually, I only feel that my skin is very thin, but I didn’t expect that human skin has so many layers of structures.”
Liu Zhaoqing said, “This is only the epidermis, there are still dermis underneath the epidermis.”
Xu Yishen said, “By the way, the dermis is differentiated from the mesoderm, and I’m busy with the blood circulation on my side, so which of you is responsible?”
Yue Xingwen took the initiative and said, “I’ll do it. Senior brother, tell me what I should do?”
Liu Zhaoqing said, “The dermis has a lot of collagen fibers, reticular fibers, elastic fibers, and stroma. This layer is more complex, capillaries and nerves are distributed in the dermis, there are also some sweat glands, sebaceous glands, and hair follicles. Several of us need to cooperate. Xingwen, you first build the approximate dermis barrier, we still have to fill in the empty part.”
Yue Xingwen said, “Okay.”
He rolled over from Jiang Pingce’s side, came to Lan Yarong’s complex barrier, and began to build the dermis, which was distributed with a large number of fibrous structures to maintain the elasticity of the skin, while the fibrous tissue could also be responsible for the repair of the body’s barrier.
Many of those fibrous structures were formed by the differentiation of a type of cells called ‘[/tn content="fibroblast"]Fibroblast is the principal active cell of connective tissue. An example of a fibroblast are the cells that connect tissues during a child’s growth spurt.[/tn]’. Liu Zhaoqing said, “Xingwen, there are a lot of fibroblasts in the dermis, you need to change the shape as well.”
Yue Xingwen said, “See, when I split, several options popped up in front of me, I’ll just pick fibroblast first and have this cell spread throughout the dermis, right?”
Liu Zhaoqing replied, “That’s right.”
After choosing, Yue Xingwen instantly deformed.
Everyone saw that the originally round and spherical Yue Xingwen suddenly became a flat, somewhat like an irregular star-like cell. Since the cell was as flattened as it was, there was no room directly in front of it, so the eye had to grow on the ‘top of the head’.
Jiang Pingce looked down and found that Yue Xingwen was lying flat on the ground, eyes blinking at the top of his head, a little confused.
Lan Yarong could not help but laugh and said, “Alas, this squishy star shape of Xingwen is cuter.”
Lin Manluo also smiled and said, “Xingwen is stunned, what should we do? After flattening, he can’t continue to roll forward!”
Qin Miao said, “Can you try to crawl forward?”
Lan Yarong said, “I have experience. After I flattened just now, I moved straight over to the designated direction.”
Yue Xingwen was helpless, so he had to move to the side.
Everyone then saw a flat, star-shaped cell, moving quickly to the side in front of their eyes, with two large, innocent and bewildered eyes above it.
Yue Xingwen only had one thought at this time: creating a child, so tired ah!
Happy new year
I keep forgetting at the start that they have become cells
Being a cell is really tiring ah. C-183 cells, thank you for your hard work lol
Happy New Year, everyone! 🎉🎉
Happy New Year!!!!
It’s a good time to give a birth for a new life!!
Thank you for your translation and have great year 💙🤍🤍💙🤍💙💙🤍🤍💙🤍💙
I love those small moments between pingce and xingwen ☺️ they’re so cute!
Thx for the chapter!