When I got back to the dormitory, it was late. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Not to mention, this night of fluttering in the pool, quite effective, under the careful guidance of Lang Yixin, Li Wenyuan learned breaststroke, but he still can't breathe, and he needs to continue to practice before he can finally master it.

He understands Lang Yixin's feelings for himself, for many years, he has been wronged by his father for marriage, but he doesn't know why, he has never found the feeling of Lang Yixin in Lin Xiaxia.

Li Wenyuan can't figure it out, maybe feelings are like this, and what can be figured out is not feelings.

Lying on the bed, chatting with Lin Xiaxia on WeChat until midnight, until Lin Xiaxia said that he was sleepy and wanted to rest, Li Wenyuan sat up, settled down, and meditated.

Tuna ......

Tuna ......

When I opened my eyes again, it was already morning.

Li Wenyuan routinely practiced "Seven Fowl Play", and then went to class.

It was a physiological experiment class, and as soon as Li Wenyuan walked into the laboratory, he saw several rabbits in an iron cage on the podium.

Nearby, some girls were taking pictures with their mobile phones.

"What a cute rabbit, it's a little unbearable to use it for experiments for a while."

"Rabbit Rabbit, don't hold a grudge, we didn't mean to hurt you!"

A few kind-hearted girls have words in their mouths, but this is just now, and when they move the knife for a while, they will completely become cold-blooded killers.

The five people were divided into an experimental group, and after waiting for a while, Ma Yanli walked in wearing a white coat.

"Class leader, are all your classmates here?" Ma Yanli asked.

"Teacher, all of them are here, and no one skips class." The squad leader said.

The experimental class is a small class, Ma Yanli stood on the podium, looked around the classroom, and deliberately stopped for a moment when her eyes passed by Li Wenyuan, and then said to the class: "Okay, then let's start the class now!" ”

Li Wenyuan and Ma Yanli have had a holiday, but the problem has now been properly resolved, and there is no such thing as holding grudges or not holding grudges, but Ma Yanli's eyes when she looks at Li Wenyuan always make people feel a little unfinished, with a touch of shyness of a little girl!

Without thinking about it anymore, this thought flashed in Li Wenyuan's mind, and he continued to listen to Ma Yanli explain the requirements and content of this experimental class.

"In today's experimental class, we are going to use rabbits to test the role of sympathetic and parasympathetic nerves. Can anyone help you recall what the sympathetic and parasympathetic nerves do to the human body? Ma Yanli asked.

Seeing that no one volunteered, Ma Yanli called the name of the deputy class leader.

"The sympathetic nerve has the effect of increasing the heart rate, dilating bronchial smooth muscles, weakening the gastrointestinal tract, dilating pupils, increasing the secretion of sweat glands, etc., while the function of the parasympathetic nerve is the opposite of the sympathetic nerve." The deputy head of the study class replied.

Li Wenyuan nodded approvingly, and he actually had his own understanding of this problem.

In Li Wenyuan's view, the sympathetic and parasympathetic nerves are the relationship between yin and yang, which restrain and coordinate each other to achieve dynamic balance in the human body.

"That's a good answer!" Ma Yanli said, "Regarding the function of these two nerves, the teacher will teach you another trick that is easy to remember!" You can imagine a soldier killing an enemy on the battlefield, holding a submachine gun in his hand and shouting, 'Rush!' Then attack the enemy's position! At this time, the changes in the human body are the manifestations of sympathetic nervous excitement! ”

The example given by Ma Yanli is easy for the students to remember.

When a warrior charges into battle, his heart rate will increase in order to provide sufficient blood to the circulatory system, because only when the heart is surging and the blood is boiling, can he fight bravely to kill the enemy, and as for the unimportant organs, the blood vessels will constrict; The bronchial smooth muscles are dilated, gasping for breath in order to take in enough oxygen; As for the slowing down of gastrointestinal peristalsis, so that when you kill the enemy, you will not suddenly feel hungry and want to eat; In addition, the pupils will also dilate, and the eyes will be round, giving the impression that they want to eat the enemy!

The human body is very complex, and what Li Wenyuan is interested in Western medicine is that Western medicine has refined the structure of the human body, entered from the part, and went to the profound research problem.

Traditional Chinese medicine, on the other hand, explores the true meaning of life from a holistic perspective.

Therefore, Li Wenyuan feels more and more that only by combining Chinese and Western medicine can the future of medicine be!

"Alright, please send one student from each group to the front to get the rabbit!" Helped the students recall the knowledge, Ma Yanli said.

Then, the students received the rabbits in groups, and according to the weighing results, they injected a certain dose of procaine anesthetic into the rabbits through the ear margin veins, and then tied the rabbits to the wooden board.

The scalpel was extremely sharp, and the students cooperated in the division of labor, exposing the structure layer by layer, and conducting experimental verification.

"Well, you're doing a great job!" Ma Yanli walked to Li Wenyuan's experimental group and gave guidance.

As a teacher, the school regulations do not allow heavy makeup and perfume, Ma Yanli can be regarded as a natural beauty, but the makeup is very light, but the smell of perfume on her body can be smelled from a long distance.

At this time, she was standing beside Li Wenyuan, and a tempting smell went straight to her heart.

"Classmate Wen Yuan, you come to catheter this rabbit, I'll see if your technique is right!" Ma Yanli instructed that catheterization is an operation that needs to be carried out during the experiment, in order to verify that the sympathetic nerve has a dilating effect on the detrusor muscle.

After listening to Ma Yanli's instructions, Li Wenyuan took a urinary catheter in his hand and poked it into the rabbit's optimus pillar.

"If you do this, you won't be able to insert it!" Ma Yanli stopped it in time and taught, "Rabbits have two physiological curvatures like human (male) urethra, namely inferior pubic curvature and anterior pubic curvature, you need to lift the rabbit's yin meridian up first, so that the urinary catheter can pass through the anterior pubic curvature and enter the bladder!" ”

Ma Yanli was in Li Wenyuan's ear when she said this, although she was talking about the rabbit's Yin Sutra, and it was a very serious medical term, but Li Wenyuan always felt a little awkward when she heard it.

"Students who can't catheter are all gathered around!" Ma Yanli let the students gather around the table and continued to guide Li Wenyuandao, "Raise it...... Insert the catheter slowly into it...... Okay, that's it! Clamp the catheter with a clip and don't let the urine come out! ”

Under the guidance of Ma Yanli, Li Wenyuan successfully completed the operation, but at this time, he felt uncomfortable, as if the urinary catheter was inserted into his body, and this was actually the common feeling of all the boys in the class after witnessing the urinary catheterization process.

"Western medicine, it's cruel......" Li Wenyuan thought in his heart, and his body shook unconsciously.

(To be continued.) )