Knowledge and Practice

As soon as Xiao Xing entered the classroom, he saw Zhang Chengyu waving to him, so he squeezed in a few steps. The seat Zhang Chengyu gave him with a book was in a good location, with a clear view, next to the corpse, and he could sit and listen to the class , Those who couldn’t get in behind had to stand and listen to the class.

"Why is it so slow?" Zhang Chengyu murmured to him in a low voice. Zhang Chengyu used books to occupy the seat, and the people behind crowded into the back row one after another, and the vacant seat was particularly conspicuous.

"Things fell down." Xiao Xingyi smiled mysteriously at him, Zhang Chengyu looked a little creepy, and it strengthened the impression that this roommate might not have a good mind.

The teacher in the anatomy class opposite had already put on blue rubber gloves, skillfully took out a row of lower limb bones from a pile of specimen bones, and began to lecture

"Bones of the lower limbs, let's look at the femur first. This is the longest and strongest long bone in the human body. It is about 1/4 of the body height. There is a femoral head facing inward at the upper end, which is connected with the hip joint. There are two bones on the upper part of the femur. bump, a major trochanter, a minor trochanter"

The anatomy teacher gestured between these two bulges, and continued, "There is an intertrochanteric line between the large and small trochanters, and there is a trochanteric gap at the back. The space between the two is called the intertrochanteric area, which is a common site for fractures. "

"Its lower end has two swellings that protrude backward, which are the medial condyle and the lateral condyle. The articular surfaces in front of the two condyles connect with each other to form the patellar surface, which is connected to the patella"

"Next is the patella, which is the largest sesamoid bone in the human body. It is located in front of the lower end of the femur. It is wide at the top and pointed at the bottom. The front is rough, and the back is the articular surface. As we just said, it connects with the patella of the femur. These are important signs of our human body and can be touched on the surface of the body."

The students in the class did not dare to slack off at all, carefully identifying and taking notes, some took out their mobile phones to record videos, for fear of missing the details of the lecture, the anatomy teacher saw a group of serious students and the nature of the lectures became more and more serious, so he took a set of The pile of tibia and fibula was taken out, and a brief explanation was given first: "The groups here are the tibia and fibula. The tibia is the load-bearing bone of the lower leg. The upper end is enlarged, and there are medial and lateral condyles. There is a fibula joint at the back and lower part of the lateral condyle. The surface is connected with the head of the fibula, and the lower end is connected with the fibula with a fibular notch. At the back, there is an oblique inward and downward soleus notch."

Then he raised his tone slightly and pointed to these: "Now I have several sets of tibia and fibula here. Do you know which set is the right tibia and fibula?" "..."

The classroom fell silent for a moment.

In fact, this is probably a piece of cake for teachers who are often in anatomy classes, or doctors who are engaged in surgery, but most of the students here have just returned from the good life of summer vacation, and most of the knowledge from the previous year has been returned to the teacher. up.

From the dissection table, the students began to look at the tibia and fibula, some girls began to flip through the book silently, and Zhang Chengyu and Xiao Xingyi also compared the bones.

Xiao Xing checked the directions of the notches. He didn't know whether he was proud of his bad luck when he changed his major last semester, or his "accomplishments" in studying medicine. After a while, the tibia and fibula on the right side were arranged smoothly.

"These two," he said firmly

"Well, the row is right, because of the direction of the notch." The teacher looked at him with relief.

"Hey..." Some students in the rest of the class let out a mournful sigh, and paid attention to this bully who could answer quickly.

The teacher continued to explain, "Because of the structural problems of the bones, fractures of the tibia and fibula shaft are the most common fractures in the whole body, among which fractures of the tibial shaft are the most common, followed by double fractures of the tibia and fibula, and fibula..."

Time flew by, and a class ended in a hurry amidst the dense notes and occasional questions from the teacher. When the bell rang, the anatomy teacher began to pack up the specimen bones. Seeing that the students around the table were all reluctant to part, So he said in a good voice, "I will give you another 10 minutes to study, and the students who have another class will blame me for procrastinating."

"Okay!" The students in the back row who had a hard time listening to the class hurriedly moved forward before get out of class was over, and compared the books with the real objects.

Xiao Xingyi originally wanted to take a look at those iconic structures to deepen his memory, but he always felt that there was still something to do.

He gave up his seat in the front row to the girl who was studying the specimens behind him, stepped back, and suddenly reacted, took off his gloves in a hurry, and took out his mobile phone from his white coat.

I don't know if the text message just sent has been sent out, and the signal in this laboratory is not sure whether it is stable or not. Did he see it, did he reply, and whether he was busy.

Fortunately, Xie An's message hangs quietly on the WeChat screen.

"Okay, what time will I pick you up? To the dormitory or to school?" by Xie An

"It's three o'clock in the afternoon~ You can go back after class in the afternoon at school tomorrow, and wait at the west gate of the school~" by Xiao Xingyi

Not long after, the screen lights up with a simple "" gesture

Xiao Xingyi felt that his mood was drifting away from the "~" symbol, and after seeing the reply, he began to silently count the time.

School just started, and it's going to 10.1 again

But time is still too slow, there is still one day to see him

The students of the next class were already crowded at the door, and Zhang Chengyu had already arranged the books beside him, and motioned for Xiao Xing to go together. This afternoon's class was over, Xiao Xing took off his white coat, put it in a bag, and Zhang Chengyu went back to the bedroom together.

There will be biochemistry in the morning and diagnostics in the afternoon.Biochemistry is really a subject that is hard to explain in a single word. Probably if you can lower your head to take the previous note and then raise your head, the extra cycle diagram on the blackboard will be impossible to understand.

Hmm... Anyway... I hope tomorrow will go faster~