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.
Some bites may result in severe dermonecrotic lesions but rarely does the bite of the brown recluse generate severe cutaneous skin or systemic symptoms. The systemic symptoms from fiddleback or brown recluse spider bite may include vomiting, fever, rashes, nausea, and muscle and joint pain. Cutaneous symptoms are more frequent than systemic symptoms.