Just kind of never thought of it - and it just kind of struck me!
Dimple is a dominant trait that is genetically inherited. Anatomically, dimples are caused by the variation in facial muscle structure (zygomaticus major). Most people with dimples have dimples on both the cheeks. A single dimple on one side of the face is rarely seen. Dimples are caused due to short muscles. Babies have dimples, but they may disappear or become less noticeable as the muscles lengthen with aging.
Why do people have facial dimples? Some people have shortened muscles. These muscles pull the skin when someone smiles, creating a classic dimple. In most cases, dimples are not visible until someone smiles. The changes in the face due to a smile bring out the dimple. With aging, dimples may disappear, as facial muscles slowly stretch out.
Some people have a dimple on the chin. It is known as cleft chin. Similar to the cheek dimples, chin dimples too are inherited with a varying degree of prominence. In the case of the latter, the groove of the cleft chin is deep enough to reach the jawbone. A chin dimple results possibly from incomplete fusion between the right and left halves of the lower jaw during embryonic development.
BTW I love dimples..They are so cute
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment