After hearing this, I seem to understand a little bit, but also seem to understand a little bit. A troubled expression flashed across the patient's face.
This situation once again tests a doctor's ability to touch the patient's brain.
"I think what you are confused about is where exactly this place is located. Having said so much, it is difficult to imagine it without an actual reference object." Xie Wanying said.
Lin Jiayin nodded: "Yes. Doctor Xie, where is it? When you say the bottom, do you mean the bottom of the brain?"
"It's the bottom, the bottom of the cup." Xie Wanying picked up a cup on the table and pointed to the bottom to show the patient, emphasizing that the other party heard correctly.
The patient's expression showed confusion again: "It's at the bottom of my head, isn't it right here on the chin?"
Sure enough, this is what ordinary people understand. The bottom of the head is the chin.
The base of the skull is definitely not here at the chin. The chin is the lower part of the mouth. We know that the mouth continues to be the throat, esophagus and trachea, and has nothing to do with brain tissue.
"When we touch the back of the head, it is the occipital bone. The front point of the occipital bone is the two temporal bones, and the temporal bone is connected to the sphenoid bone in the middle. The mouth is the mandible, and the famous temporomandibular joint is connected to the temporal bone upward. Look at the height of the mandible. It almost reaches the ears. So, to be more precise, the sphenoid bone does not reach the horizontal line of the disc body in the middle of the chin. It needs to be lifted up closer to the nose. There is an important structural point inside the sphenoid bone called the sphenoid sinus. Connected to the nasal cavity.”
After a doctor compared and explained with specific and intuitive reference objects, the non-medical people at the scene suddenly became enlightened. It is usually wrong for laypeople to understand that most of the horizontal line of the brain reaches the chin. In fact, you can know by touching the back of a person's head that the back of the head moves upwards, which means that most of the brain tissue cannot reach the lower parts, that is, the cerebral hemispheres cannot reach it.
The brain and the nose are connected, so it is not too difficult to understand.
Because the brain trauma patients we mentioned before have cerebrospinal fluid rhinorrhea. If you think that cerebrospinal fluid usually does not flow out from other places but only flows out from the nasal cavity, there must be some secret of the human body here. Now the answer is revealed, it is due to the sphenoid sinus.
The sphenoid sinus is an opening that communicates with the nose. The sphenoid bone houses the brain inside the skull, and the sphenoid sinus naturally becomes the natural window connecting the brain and the nose.
On the other hand, there is a natural opening like the sphenoid sinus that leads to the outside world through the nose. There seems to be a natural hole in front of the doctor, forming a hole that can be drilled. Through this hole, one can directly access the brain that is densely wrapped by the skull without opening the skull. .
The opening of the sphenoid sinus is so small that the doctor cannot enter and operate it with bare hands. It is located further back in the nose and cannot be seen by a doctor's eyes. The doctor wants to drill through this small hole and can only use special surgical instruments.
This kind of surgical method sounds very familiar. Yes, we can quickly think of other human body surgeries with similar surgical principles and methods, such as gastroscopy surgery and colonoscopy surgery. This type of surgery uses the natural openings of the human body to access the interior of the human body, eliminating the need to use a scalpel to make openings in the human body.
The instrument used for gastroscopy is called a gastroscope, the instrument used for colonoscopy is called a colonoscope, and by analogy, the instrument used for surgery through the nose is called a nasal endoscope.
From what has been said above, we can know that nasal endoscopy can perform nose surgery and brain surgery.
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