👉 Cricoid, also known as a cleft palate or a cleft lip, is a deformity of the roof of the mouth that occurs when the soft palate meets the upper lip. It can be caused by various factors such as birth defects, trauma, or underlying medical conditions like polycystic ovary syndrome (PCOS). The cricoid's function is to help seal the opening between the lips and the roof of the mouth. There are two types of cricoids: