Category: L

A reflex that does not involve the central nervous system (e.g., the myenteric reflex, which occurs even when extrinsic nerves to the intestine have been cut).  

The reflex movement of the lips when the angle of the mouth is suddenly and lightly tapped during sleep.  

Constriction of the pupil when light is flashed into the eye. An inherent reflexive action where the eye’s pupil instinctively reacts to the level of incoming light. Typically, the pupil contracts when exposed to intense light, regulating the quantity of light entering the eye. Conversely, in dim light, the pupil expands or dilates. An unusual…

Closure of eyelids resulting from direct corneal stimulation. This reflex is mediated by the fifth cranial nerve.  

The movement of breast milk from the alveoli into the lactiferous ducts in response to oxytocin-stimulated contractions. The reflex may be stimulated by suckling or by infant crying. Stimulation of the nipple increases the secretion of oxytocin and this technique may be used to stimulate contraction of the postpartum uterus.  

Secretion of fluid resulting from irritation of the corneal conjunctiva.  

A tiny cholesterol-rich region on a cell membrane that helps selected molecules enter the cytoplasm.  

A radiograph of the sinuses and lateral aspects of the cranial skeleton.  

A radiograph used to examine the body of the mandible and the ramus. Projections may be performed with conventional dental radiographical film and may cover a broader area than a typical periapical radiograph. Also called lateral jaw survey.  

A radiograph of the entire head, taken from the side with the head in a fixed position and used to make definitive observations or measurements.