74. Lymph Vessels and Nodes of Head and Neck 94. Pathway of Sound Reception 95. External Ear and Tympanic Cavity 96. Tympanic Cavity 97. Bony and Membranous Labyrinths 98. Bony and Membranous Labyrinths (continued) 99. Orientation of Labyrinths in Skull 100. Pharnygotympanic (Auditory, Eustachian) Tube 101. Meninges and Diploic Veins