Chapter 2987 【2987】Not Easy

It was obviously rare for a group of people to see her remain silent on such an ordinary question. People who were outside their hearts felt something was wrong, and looked at people outside their nerves.

Cao Yong pretended to be nonchalant, and said to his junior brother: "Okay, don't tease others."

Huang Zhilei cried out in his heart: "Whoever teases my junior sister is definitely not him but you, Senior Brother Cao."

Went to the operating room, the anesthesia was done.

This time the chief surgeon was replaced by Dr. Song, and the assistant was replaced by Pan.

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

The first layer of skin is richer in blood supply than the skin in other parts of the human body, so once blood is lost, it is prone to massive hemorrhagic shock.

The second layer of subcutaneous tissue is also called the superficial fascia layer, where there are relatively large blood vessels and nerves. At that time, classmate Xie pressed the vascular network in this place to stop the bleeding.

There are three layers of galeal aponeurosis, which is a special structure of the scalp. It has strong toughness, great elasticity, and is full of tension. It serves to connect muscles. It connects to the temporalis muscle and occipital muscle afterwards.

The location of the hydrocephalus drainage tube we mentioned before is hidden under this layer, that is, the subaponeurotic layer of the fourth layer. The structure of this layer is loose, so that the skin bag can be separated to place the shunt tube, and the superstructure is thick enough to cover it to prevent the shunt tube from being exposed.

There is a subaponeurotic space under the subaponeurotic layer. This layer can reach from the back of the supraorbital rim to the upper nuchal line. The structure is very thin and easy to be torn. Therefore, most patients with scalp avulsion injuries are torn along this layer. And we can see that many wounded are torn to the ears above the eyes for this reason.

Needless to say, the last layer of periosteum is the thin layer of membrane covering the skull.

It can be seen from the above structure that the detached scalp of the patient with scalp avulsion injury contains the superficial fascia layer. This layer covers the important arteriovenous vascular network and nerves that nourish the scalp. These arteriovenous vascular networks and nerves must be connected with the large arteriovenous and nerve trunks of the human body, otherwise the scalp will die.

It can be said that if the scalp of a patient with scalp avulsion injury needs to be transplanted back, anastomosis of these important nerves and blood vessel trunks is the key point of the scalp transplant operation for patients with scalp avulsion injury.

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

Speaking of which, scalp is not the most important thing in anatomy class. If it is not for seeing real clinical operation cases, it is really hard to recall the content of anatomy class. This is a big reason.

Secondly, the dissection of dead specimens in anatomy class is a relatively clean picture, unlike the current patients, when the gauze protecting the wound is removed, the wound surface must be full of blood dripping because of the fresh life, which is full of the doctor's vision. It was bloody and bloody, and it looked like a complete mess.

Don't say that medical students will be at a loss when they look at and want to find the location of each blood vessel and nerve for a while. The teacher wants to find the matching points, and he also painstakingly aligns them there, marking them one by one, just in case he makes a mistake. Once you get it wrong, the consequences will be unimaginable.

It has once again been verified that surgical anatomy is the foundation of the foundation. Doctors who are good at anatomy will not sweat profusely at least during this early stage of alignment work. If the anatomy is not good, it may take more than an hour just to find the position.

It is normal for scalp avulsions to be transplanted overnight. Unexpectedly, a scalp operation is nothing more relaxing than an intracranial operation.