The breathy consonant phonemes in Zulu are depressor consonants, or depressors for short. A levator raises a structure; a depressor moves a structure down. The depressor anguli oris is a muscle of facial expression. The depressor septi pulls the columella, the septum, and the tip of the nose downwards. The depressor anguli oris (triangularis) is a facial muscle associated with frowning. The depressor septi (depressor alae nasi) arises from the incisive fossa of the maxilla. In medical applications, spatula may be also used synonymously with tongue depressor. For infants, passively elevating the tongue tip with a tongue depressor may reveal the problem. Basic diagnostic medical devices (e.g. stethoscope, tongue depressor) are typically used. It is depressed by the depressor septi nasi muscle. M. depressor ossis styliformis abducts the calcar towards the foot, which spreads the uropatagium. The consonants that induce tonal alternations in this way are sometimes called depressor consonants. The depressor Supercilii is an eye muscle of the human body. The depressor septi muscle may sometimes be absent or rudimentary.