Complex sentence: The thyroglossal tract arises from foramen caecum at junction of anterior two-thirds and posterior one-third of the tongue, any part of the tract can persist causing a sinus, fistulae or cyst.
Split into simpler sentences: The thyroglossal tract arises from the foramen caecum at the junction of the anterior two-thirds and posterior one-third of the tongue. Any part of the tract can persist causing a sinus, fistula or cyst.