Category: R

A reaction to a current of fluid, in which an organism orients itself with the current.  

A hypertrophying and condensing osteitis occurring in streaks, involving the long bones; also known as melorheostosis.  

A device maintaining fixed or variable resistance for controlling the amount of electric current entering a circuit. A variable resistance, usable with both AC and DC currents, comprising a coil or wire wound around a form. It incorporates a sliding tap that can be adjusted to modify the resistance.  

Membrane differential filtration.  

In unipolar testing with the galvanic current using the negative as the active pole, the minimal voltage required to produce a stimulated response. Also called threshold of excitation.  

A silvery-white polyvalent transition metal similar to manganese; atomic weight 186.2, atomic number 75. It is used as a radiopharmaceutical.  

A group of antigens on the surface of red blood cells present to a variable degree in human populations. When the Rh factor (an antigen often called D) is present, an individual’s blood type is designated Rh+ (Rh positive); when the Rh antigen is absent, the blood type is Rh- (Rh negative). If an individual…

A genus of herpesviruses that includes human herpes virus 8.  

A congenital cleft in the spinal column.  

A neuropsychiatric test used to measure the ability to recall a list of heard words. The test is sometimes used to evaluate the memory of patients with dementia.