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.
Common symptoms of a brown recluse spider bite include shivering, vomiting, nausea, fever, itching, shock and restlessness. The bite may come out as an injury of about 1 to 2 3/4 inches which takes several months of healing and will leave you with unsightly scars. The bite is usually deep and will cause pain eventually.
The initial bite may or may not be noticed by the victim. 1  Brown recluse bites cause local swelling, pain, itching, redness, tenderness, and blisters. They eventually form large ulcers and may cause tissue necrosis (death of the tissue in the area of the bite).  Fever, chills, rash, nausea, and vomiting may develop.