Located of the brainstem; controls breathing and heartbeat; connects the medulla to the two sides of the cerebellum to help coordinate and integrate movement on each side of side of the body; involved in sleep and dreaming.
Serious symptoms related to the bite of a brown recluse spider include low platelet count, destruction of the red blood cells, blot clots in capillaries, inability to form clots, acute renal failure or kidney damage, coma, and death.
1 The brown recluse spider bite usually causes some pain or burning in the first 10 minutes, accompanied by itching. 2  The wound takes on a bull's-eye appearance, with a centre blister surrounded by an angry-looking red ring and then a blanched (white) ring.  The blister breaks open, leaving an ulcer that scabs over.