"Dorsum nasi" is a Latin term used to describe the junction of the forehead and nose, commonly known as the bridge of the nose. The word is spelled /ˈdɔːrsəm ˈneɪzaɪ/ in IPA phonetic transcription, with a long "o" sound in "dorsum" and a short "a" sound in "nasi." The word "dorsum" refers to the back or upper part of an organ or structure, while "nasi" means "of the nose," making "dorsum nasi" a fitting description for the bony and cartilaginous structure that supports the nose.
Dorsum nasi, also known simply as the narial dorsum or nasal bridge, refers to the uppermost part of the nose that lies between the two nasal bones. It is the straight, bony ridge that runs from the root of the nose down to the tip. Dorsum nasi is an essential anatomical feature that helps to provide structural support to the nose and contributes to its overall shape.
The dorsum nasi is responsible for maintaining the height and prominence of the nose, giving it its characteristic appearance. It serves as the attachment point for the nasal cartilage, which forms the framework of the nose. Additionally, the dorsum nasi plays a role in controlling the nasal airflow by influencing the direction and flow of air during breathing.
The term "dorsum nasi" is often used in medical and anatomical contexts to describe the specific region of the nose. It allows healthcare professionals and researchers to accurately identify and discuss various nasal conditions, abnormalities or injuries that may be associated with the dorsal aspect of the nose.
In summary, the dorsum nasi is the high, bony prominence that forms the upper part of the nose, providing support and structure. It helps determine the shape and appearance of the nose while also influencing airflow during breathing.
The ridge of the nose, looking forward and upward.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "dorsum nasi" is derived from Latin. Here is the breakdown of the etymology:
1. Dorsum: This Latin word means "back" or "ridge". It is derived from the Latin root "dors" which refers to the back or spinal region of an animal or human body.
2. Nasi: This is the genitive form of the Latin word "nasus" which means "nose".
When combined, "dorsum nasi" literally translates to "back of the nose" or "ridge of the nose", referring to the area between the eyebrows and above the bridge of the nose.