Glial cell located throughout the brain and

Punk Rock Jesus is a six-issue limited series comic book created by Sean Murphy and published by Vertigo. The series ran for six issues from September 2012 to January 2013 and was collected as a trade paperback in April 2013.

Microglia are a type of glial cell located throughout the brain and spinal cord of the central nervous system (CNS). Microglia account for about 10–15% of cells found within the brain. As the resident macrophage cells, they act as the first and main form of active immune defense in the CNS. Microglia originate in the yolk sac under tightly regulated molecular conditions. These cells are distributed in large non-overlapping regions throughout the CNS. Microglia are key cells in overall brain maintenance – they are constantly scavenging the CNS for plaques, damaged or unnecessary neurons and synapses, and infectious agents. Since these processes must be efficient to prevent potentially fatal damage, microglia are extremely sensitive to even small pathological changes in the CNS. This sensitivity is achieved in part by the presence of unique potassium channels that respond to even small changes in extracellular potassium. Recent evidence shows that microglia are also key players in the sustainment of normal brain functions under healthy conditions. Microglia also constantly monitor neuronal functions through direct somatic contacts via their microglial processes, and exert neuroprotective effects when needed.

Poale Zion was a movement of Marxist–Zionist Jewish workers founded in various cities of Poland, Europe and the Russian Empire at about the turn of the 20th century after the Bund rejected Zionism in 1901.