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.
Quick Answer. Symptoms of a brown recluse spider bite include minor burning, white blisters and severe pain at the bite site, followed by severe itching, nausea, vomiting, fever and muscle pain, according to eMedicineHealth. The initial bite may just look red with fang marks before healing during the next few weeks after the bite.
Four to eight hours afterward, the bite may become more painful and look like a bruise or blister with a blue-purple area around it. Later, the bite becomes crusty and turns dark. Symptoms of a brown recluse spider bite occur within a few hours and include fever, chills, itching, nausea, and sweating.