See Also: gating mechanism(medicine)
Gating(medicine)
channel gating(medicine)
ion channel gating(medicine)
gating current(medicine)
cardiac gating(medicine)
mechanism(dictionary)
Mechanism(health)
mechanism(dictionary)
mechanism(encyclopedia)

bloc (oh) and gating mechanism (medicine)


bloc (oh)



[Date: 1900-2000; Language: French; Origin: Old French; BLOCK1]
a large group of people or countries with the same political aims, working together
::the former Soviet bloc
-see also en bloc

gating mechanism (medicine)


gating mechanism


Occurrence of the maximum refractory period among cardiac conducting cells approximately 2 mm proximal to the terminal Purkinje fibres in the ventricular muscle, beyond which the refractory period is shortened through a sequence of Purkinje cells, transitional cells, and muscular cells; gating mechanism may be a cause of ventricular aberration, bidirectional tachycardia, and concealed extrasystoles, a mechanism by which painful impulses may be blocked from entering the spinal cord.

Compare: gate-control theory.