Ethmoidal sulcus

The ethmoidal groove (sulcus ethmoidalis) is an anatomical formation inside the human nasal cavity. It is a narrow gap, which is located on the upper surface of the labyrinth of the reticular bone, to which a layer of epithelium adjoins.

The ethmoidal fissure has several names. It is also known as the transverse nasal groove (PNB), lateral nasal groove (BNB) and superior nasal groove (JNA). Despite the different names, they all refer to the same anatomical formation.

The ethmoid groove plays an important role in the anatomy of the nasal cavity. It is the location of the olfactory receptors, which help a person to distinguish odors. In addition, nerve fibers pass through the ethmoidal groove, connecting the olfactory nerve to the brain.

An important aspect of the anatomy of the ethmoidal fissure is its relationship with the choroid plexus. On the walls of the groove there are many small vessels that provide blood supply to the mucous membrane of the nose and eye.

In addition, the ethmoidal fissure may play a role in the development of a number of diseases. For example, its narrowness can cause difficulty breathing through the nose, which can lead to chronic runny nose and other problems with the respiratory system.

Thus, the ethmoidal groove is an important element of the anatomy of the nasal cavity, which plays a key role in the sense of smell and blood supply. Its anomalies can lead to various diseases, so the study of its structure and functions is of great importance for practical medicine.