Sinus

Sinus is a medical term that can have different meanings depending on the context. In general, a sinus is an air-filled area found in bones, such as the skull or other parts of the body. However, there are other meanings of this term.

One example is the venous sinuses, which are located in the dura mater and serve to drain blood from the brain. Venous sinuses can be used to diagnose and treat various brain diseases such as tumors or infections.

Another example is the carotid sinus, which is located on the inside of the carotid artery and serves to regulate heart rhythm. Carotid sinus dysfunction can lead to serious health problems such as arrhythmia or stroke.

The term “sinus” can also be used to describe various pathways leading from the site of infection to the surface of the body or hollow organ, such as fistulas or sinus tracts. These pathways can be caused by various reasons such as infections, trauma or surgery.

Thus, the term “sinus” has many meanings and can be used in various fields of medicine. It is important to understand what meaning is used in a particular context in order to correctly diagnose and treat diseases.

Sinus is a medical term that can have multiple meanings depending on the context. Let's look at some of them:

1. A sinus is an air-filled cavity that can be located in bones, especially the bones of the skull. The sinuses can be useful for storing air to help maintain pressure in the skull and prevent deformation. For example, the sinuses, which are located in the bones of the upper part of the face, help maintain air pressure in the nasal cavity and ensure normal airway function.

2. Sinus can also mean a wide channel through which blood flows. Venous sinuses, for example, are located in the dura mater and serve to drain blood from the brain and also maintain pressure in the skull.

3. Sinus can also be used to refer to a pocket or depression in the wall of a tubular organ. For example, the carotid sinus is a pocket or depression in the wall of a blood vessel that carries blood away from the heart.

4. A sinus can also be called a fistula - it is a channel or opening that connects a cavity or organ to the surface of the skin. For example, the pilonidal sinus is a fistula that connects the hair follicle to the skin at the back of the head.

In general, the word “sinus” is used in medicine to refer to various structures and channels associated with blood circulation and respiration. It is important to understand that each meaning has its own unique context and requires appropriate medical education to accurately determine.

**Sinus (Latin sinus - “sinus”)** is an air-filled structure in a bone formation where vessels and nerves are located or a tissue pocket in the walls of blood vessels. It is also later called “FALKA” (Greek σύνος “channel for release”).

Bone sinuses or so-called air pockets are divided into two types: sinus and sinus canals. Let's look at each type in more detail. As for air pockets, they can form both inside the bone and on its surface passing through the skull. They communicate with the sinus cavity and are called the internal sinuses of the nose. They also open into the external auditory canal with participation in the shape of the chamber of the middle ear. All internal sinuses of the nose pass through the column of the underlying zygomatic bones. The external sinuses are located in the frontal plane to the side of the nasal cavity. These are the ethmoid and maxillary sinuses.

Wide vessels through which blood moves, especially venous blood, are called venous sinuses. In the dura mater, these tubes serve as a channel for venous blood flow. Each of them begins on the surface of the brain, passes through the web that covers it, and is attached to the skull. The place where the sinus, vein and sinus communicate is called the "stage". For example, the sinus of the dura mater is adjacent to the sinus of the upper jaw and connects the pharynx to the skull using the sphenoid sinus vein. We can say that the venous sinuses also serve as maxillary cavities.

A pocket or depression in the walls of any tubular structure of the body is called a sinus tract or fistula. For example, during laparoscopic operations involving interventions on the abdominal organs, the surgeon deals with the diverticular or phalloid sinus, which contains the umbilical duct.

Unlike sinuses, the sinus canal enters the tissue directly and affects the metabolic process in it. These channels are not vascular, no matter how much this contradicts their name. The area of ​​their formation is blood vessels. They end in large and small upper and lower stuffing box holes, which connect