Figure 4From: Sub-chronic inhalation of high concentrations of manganese sulfate induces lower airway pathology in rhesus monkeysBasophilic foci in nerves. Basophilic foci (arrow) in nerves of olfactory mucosa from a monkey exposed to MnSO4 at 0.06 mg Mn/m3, for 65 days (40×).Back to article page