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Sagittal section of the skull of a bovine euthanized with a prototype pneumatic penetrating captive bolt designed for use in mass depopulation of a large feedlot, dairy or beef cattle operation. Labelled structures are as follows: Cerebrum (CE), Cerebellum (CB), Thalamus (T), Midbrain (M), Pons (PS), Presphenoid bone (P), Sphenoid bone (S) and Occipital bone (O).
