Section Through Pons Varolii Small 320×186 Medium 640×371 Large 1024×594 Download Tiff Original 2400×1393 | (1.3 MB) Description Section through the upper part of the pons varolii of the orangoutang above the level of the trigeminal nerve. Keywords "trigeminal nerve", brain, pons Varolii Galleries Mammal Anatomy: Internal Organs Source: Cunningham, D.J. Textbook of Anatomy (New York, NY: William Wood and Co., 1903)