punctum (punkt'um)

A dot or point. p. adhesion is. The point of attachment of a muscle, p. alae vomer is. The point upon the rostrum of the sphenoid bone where it is included between the alae vomer is. puncta ciliaria. The perforations in the eyelid through which the hairs emerge. p. for am in is incisivi. The posterior border of the incisor foramen. p. insertion is. The point of insertion of a muscle, puncta lacrimal i a. Two small contractile openings, one in the ciliary margin of each eyelid; the patent orifices of the lacrimal ducts, p. spinae nasal is anterior is. The apex of the anterior nasal spinal or, when that is absent, the upper end of the suture between the superior maxillae. p. spinae nasal is posterior is. The middle of the posterior nasal spine. [Lat., pungere, to prick.]