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.
In many cases a brown recluse spider bite will feel like nothing, and the individual may not notice until it is too late. At first the bite will exhibit no serious signs. After a few hours pain and itching may occur. Vomiting, nausea, and fever are all common symptoms associated with a severe brown recluse spider bite.