■ Transverse sinus横窦 Sigmoid sinus乙状窦 Superior petrosal sInuses岩上窦 inferior petrosal sInuses岩下窦◼ Transverse sinus 横窦 ◼ Sigmoid sinus 乙状窦 ◼ Superior petrosal sinuses 岩上窦 ◼ inferior petrosal sinuses 岩下窦