Of these the limbal zone is the thinnest (transversally) and overlies the auditory teeth of Huschke with its inside edge attached to the spiral limbus. The marginal zone is the thickest (transversally) and is divided from the middle zone by Hensen's Stripe.
Among these, the limbal zone is the thinnest dimensionally and lies above the auditory teeth of Huschke with its innermost boundary connected to the spiral limbus. The marginal zone is the thickest dimensionally and is distinguished from the central zone by Hensen's Stripe.