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.
Brown recluse spiders have venom but, unless injured or threatened, they rarely bite. If you are bitten, you may not notice right away. Symptoms usually appear 2-8 hours after the bite. The most common symptom is redness around the bite and blistering.