Coronal consonants are articulated with the flexible front part of the tongue. Only the coronal consonants can be divided into apical (using the tongue tip), laminal (using the tongue blade), domed (with the tongue bunched up), or sub-apical (with the tongue curled back), as well as a few rarer orientations, because only the front of the tongue has such dexterity. Coronals also have another dimension, grooved, that is used to make sibilants in combination with the orientations above.