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.
Symptoms and Signs. Brown spider bites are most common in the US. Some bites are painless initially, but pain, which can be severe and involve the entire extremity, develops within 30 to 60 min in all cases. The bite area becomes erythematous and ecchymotic and may be pruritic.