Category: S

The protein portion of the rods of the retina of the eye. It combines with 1 1-ci.s-retinal to form rhodopsin.  

The locating and measurement of scotomata.  

An irregular outline around a luminous patch in the visual field that occurs following mental or physical labor, eyestrain, or during a migraine.  

An arthropod of the class Arachnida and order Scorpionida. It varies in length from less than 2 in (5 cm) for the small bark scorpions of Arizona to 8 in (20 cm) for some African scorpions. Most scorpions are nocturnal and reclusive and are most active when the night temperatures remain above 70°F (21°C). The…

Concerning or affected with scurvy.  

Fish of the suborder Scombroidea, including mackerel, tuna, bonito, albacore, and skipjack.  

An irreversible lateral spinal curvature that has a fixed rotation. The vertebral bodies rotate toward the convexity of the curve; the rotation results in a posterior rib hump in the thoracic region on the convex side of the curve. In structural scoliosis, the spine does not straighten when the patient bends.  

Scoliosis due to a difference in the length of the legs.  

The patient assumes a laterally bent posture to reduce sciatic nerve symptoms.  

A device for measuring curves, especially the lateral ones of the spine. A device designed to assess the unevenness of the trunk, comprising a bubble level and an angle measuring component. A tool utilized to gauge spinal curvatures.