Making the world better, one answer at a time. Angel Dust is one of the street names of Phencyclidine, or PCP. It is a drug formerly used as an anesthetic agent, exhibitinghallucinogenic and neurotoxic effects.
A blow to the rib cage can cause either a fracture or bruising to the membrane that covers the bone (periosteum). Both can be very painful, and it is very often hard to distinguish the difference, even with a X-ray.
Mechanism of cell injury (CAMPR) 1  Depletion of ATP. 2  Mitochondrial damage. 3  Loss of Ca++ homeostasis.  Accumulation of O2 -derived free 1  radicals. Defects in membrane permeability.  Direct-complement, poke holes in 1  membrane. Secondary to loss of  ATP.