Seeing that she was silent about such ordinary problems, it was obvious that the people outside her heart felt something was strange and looked at the people outside her nerves.

Cao Yong pretended to be nothing and said to his junior brother: "Okay, don't tease others."

Huang Zhilei shouted in his heart that he was wronged: Whoever teases the junior sister, it is definitely not him but Senior Brother Cao.

I walked to the operating room and the anesthesia was done.

This time, the main surgery was replaced by Dr. Song, and the assistant was led by Student Pan.

I have talked about scalp problems before, and the scalp structure is divided into four layers.

The first layer of skin is richer in blood than other parts of the human body, so it is easy to suffer from severe blood loss and shock once blood loss is lost.

The second layer of subcutaneous tissue, also known as the shallow fascial layer, has relatively large blood vessels and nerves. At that time, Mr. Xie pressed the blood vessel network in this place when he was pressing the pressure of acupressure.

The three-layer cap-shaped aponeurosis layer is a special structure of the scalp. It is tough and elastic, and has a lot of tension. It connects the muscles, connects the temporalis muscles and connects the occipitalis muscles to the anteriorly and the occipitalis muscles.

The location of the hydrocephalus drainage tube we mentioned earlier is hidden below this layer, that is, the sub-apermatous layer of the fourth layer. This layer is loose in structure, so it is easy to separate the skin and place the shunt tube. In addition, the upper structure has enough thickness to cover the shunt tube to prevent exposure.

There is a subaerobic space under the subaerobic layer. The range of this layer can reach the back of the upper orbital edge to the upper neckline. The structure is very thin and easy to be torn. Therefore, most patients with scalp avulsion are torn along this layer. We can see that many injured people tear their ears above their eyes. This is why.

The final periosteum layer is not much about the thin layer of membrane covering the skull.

From the above structure, it can be seen that the scalp separated by patients with scalp avulsion injuries contains a superficial fascia layer. This layer covers important arteriovenous vascular networks and nerves that nourish the scalp. These arteriovenous vascular networks and nerves must be connected to the human body's large arteriovenous veins and nerve stems, otherwise the scalp will die.

It can be said that if the scalp of patients with avulsion injury is transplanted back, combining these important nerves and blood vessels is the focus of scalp transplant surgery for patients with avulsion injury.

The medical students on the scene immediately racked their brains to meticulously recall the scalp anatomy taught in the anatomy class.

Scalp is not the top priority in anatomy class. If you had not seen real clinical surgery cases, it would be difficult to recall the contents of the anatomy class. This is a big reason.

Secondly, dissecting the death specimens in the anatomy class is a cleaner picture. Unlike the current patients who have uncovered the gauze to protect the wound, the wound surface must be full of blood because of the living life, which fills the doctor's vision like a bunch of blood and blood, and looks almost a mess.

Don’t say that medical students will be confused when they look at the right position of each blood vessel and nerve. The teacher needs to find the right fit, and they are trying hard to align them and mark them one by one, but they are afraid that they will make mistakes. If they make mistakes, the consequences will be unimaginable.

Once again, it is verified that surgical anatomy is the foundation of the foundation. Doctors who play anatomy will not sweat at least during this early stage of alignment. If they are not good at dissecting, it will probably take more than an hour to find the correct position.
Chapter completed!