The phrase “crown of the head” is a familiar expression. While widespread, its precise anatomical location might not be immediately clear. This phrase refers to a specific area of the human skull, holding both anatomical significance and practical relevance. Understanding its exact position clarifies its meaning in different contexts.
Identifying the Crown of the Head
The crown of the head, also known as the vertex, represents the highest point of the human skull. This area is not a single bone but rather a region formed by the convergence of several cranial bones. Specifically, it is primarily composed of the two parietal bones, with contributions from parts of the frontal bone towards the front and the occipital bone towards the back.
This region is situated along the sagittal suture, a fibrous joint that runs down the midline of the skull from front to back. A simple way to locate it is to imagine a line connecting the tips of the ears across the top of the head; the intersection of this line with the midline generally pinpoints the vertex. It can also be found just behind the top of the forehead.
Everyday References to the Crown
The term “crown of the head” appears in various practical contexts. One common application relates to hair and hair loss, particularly in cases of male pattern baldness, also known as androgenetic alopecia. Hair thinning or loss often begins at the crown, a noticeable sign for many individuals. This pattern is influenced by genetics and the hormone dihydrotestosterone (DHT).
The crown also serves as a reference point for headwear. The “crown” of a hat is the top portion designed to fit over this part of the head. Hat sizing often involves measurements taken around or over the crown to ensure a comfortable and secure fit. It also acts as a consistent anatomical landmark for measurements in fields like anthropology or medicine, used for assessing skull dimensions and clinical procedures.
Beyond its physical relevance, the “crown of the head” is also used idiomatically in phrases like “uneasy lies the head that wears a crown” or “heavy is the head that wears the crown.” Originating from Shakespeare, these expressions convey the idea that those in positions of power or authority carry significant burdens and responsibilities. This reinforces the concept of the crown as a symbol of prominence and the weight associated with it.