Roof Of Tympanic Wall

Facing the outer ear the lateral wall or membranous wall is formed mainly by the tympanic membrane partly by the.

Roof of tympanic wall.

The roof of the. Membranous wall lateral wall is formed mostly by the tympanic membrane and the bony wall of the epitympanic recess. The tegmental wall or roof paries tegmentalis is formed by a thin plate of bone the tegmen tympani which separates the cranial and tympanic cavities. The tegmen tympani also known as the tegmental wall or roof of the tympanic cavity is a thin plate of the petrous part of the temporal bone that separates the intracranial compartment and middle ear.

The tympanic cavity is bounded by. Facing the inner ear the medial wall or labyrinthic wall labyrinthine wall is vertical and has the oval window and. Jugular wall floor is formed by a bone that separates the middle ear from the internal jugular vein. The roof of the cavity also called the tegmental wall tegmental roof or tegmentum tympani is formed by a thin plate of bone the tegmen tympani which separates the cranial and tympanic cavities.

It is prolonged backward so as to roof in the tympanic antrum and forward to cover in the semicanal for the tensor tympani muscle. Formed by jugular fossa which separates middle ear from internal jugular vein. It is situated on the anterior surface of the petrous portion of the temporal bone close to its angle of junction with the squama temporalis. The borders forming the walls of the tympanic cavity are as following.