Correctly label the anatomical features of the nose Nasal septum Philtrum Bridge Naris Ala nasi Apex Dorsum nasi Prev of 20 Next rch
The Correct Answer and Explanation is:
Here are the correctly labeled anatomical features of the nose:
- Bridge – The upper, bony part of the nose between the eyes.
- Dorsum nasi – The length of the external nose from the root (between the eyes) to the tip.
- Apex – The tip or most anterior point of the nose.
- Ala nasi – The outer flared portion of the nostril on either side of the apex.
- Naris (plural: nares) – The external openings of the nasal cavity, commonly referred to as nostrils.
- Nasal septum – The internal wall that divides the nasal cavity into right and left halves.
- Philtrum – The vertical groove in the midline of the upper lip beneath the nose.
Explanation
The human nose is a complex structure with both functional and aesthetic importance. It plays a critical role in breathing, olfaction (sense of smell), and phonation, while also contributing to facial symmetry and identity.
At the top of the nose is the bridge, which is formed by the nasal bones and is commonly associated with the bony framework between the eyes. Extending downward from the bridge is the dorsum nasi, a superficial structure covering the nasal bones and cartilage, which leads to the apex, the rounded tip of the nose.
On either side of the apex are the alae nasi. These are the lateral, wing-like structures that form the outer walls of the nostrils. The nostrils themselves are referred to as nares (singular: naris), and they serve as the external openings to the nasal cavity through which air enters and exits.
Inside the nose, the nasal septum divides the nasal cavity into left and right sides. This septum is made up of bone and cartilage and is essential for directing airflow and supporting the structure of the nose. Deviations or perforations in the septum can lead to breathing difficulties or aesthetic concerns.
Below the nose, the philtrum is a midline groove that connects the base of the nose to the upper lip. It is a notable feature in facial development and varies in shape and prominence between individuals. Its formation is an important marker of proper embryologic fusion during fetal development.
Altogether, these anatomical features work in harmony to support the nose’s respiratory function, olfactory capacity, and role in facial expression and aesthetics.
