Category: A

A feeling of pressure that remains for a few seconds after removal of a weight or other pressure. The sensation of lingering pressure experienced after removing an object from the body’s surface.  

Perception of a sensation after cessation of the stimulus. The enduring experience of a sensation even after its triggering factor has stopped.  

Persistent and spontaneous contraction of a muscle after a strong contraction against resistance has ceased. This is easily seen when a person forcibly pushes an arm against a wall while standing with the frontal plane perpendicular to the wall. When this is stopped and the person moves away from the wall, the arm abducts involuntarily…

The discharge of impulses from a reflex center after stimulation of the receptor has ceased. It results in prolongation of the response.  

Abnormal electrical activity that occurs during repolarization of the pacemaker cells of the heart. This activity may prolong the action potential and trigger abnormal atrial or ventricular rhythms.  

A gaseous mixture formed by the explosion of methane and air in a mine; contains a large percentage of carbon dioxide, nitrogen, and carbon monoxide.  

The ionic flows across a membrane after an action potential has passed along the membrane.  

An opacity of the lens capsule that develops after cataract removal.  

Continued reaction for some time after the stimulus ceases, especially in nerve centers. In the sensory centers this action gives rise to aftersensations.  

An infectious illness transmitted to humans by ticks of the genus Amblyomma infected with Rickettsia africae. The disease is found in sub-Saharan Africa and the French West Indies and is characterized by fevers, headache, scabs that form at the site of tick inoculation, and localized lymph node swelling.