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.
Spider bite pictures and symptoms The black widow and brown recluse are most common in the Southern U.S. and both like warmer weather. While bites are uncommon, you are most likely to come across these spiders in undisturbed places, such as the back of a closet or garage or in wood pile.