Vallecula
An anatomic term for a crevice, furrow or depression.
There are a variety of valleculae including one in the brain, another in the nail matrix, etc.
However, used alone, the term 'vallecula' usually applies to the epiglottic vallecula, a depression just behind the root of the tongue between the folds in the throat.</P> 'Vallecula' is the diminutive of the Latin 'valles', valley so that a vallecula is literally a little valley.