Floor Of Middle Ear Cavity

The space is called the tympanic cavity and it has two parts.

Floor of middle ear cavity.

The floor inferior wall is also a thin bony plate in this case separating the middle ear cavity from the jugular vein and the carotid artery below. On its lateral surface it abuts the external auditory meatus ear canal from which it is separated by the tympanic membrane eardrum. It is separated from the external ear by the tympanic membrane and from the inner ear by the medial wall of the tympanic cavity. Tympanic branch of glossopharyngeal nerve.

The tympanic cavity is bounded by. The hollow space of the middle ear is also known as the tympanic cavity and is surrounded by the tympanic part of the temporal bone. Tympanums tympana is an air filled chamber in the petrous part of the temporal bone. Facing the inner ear the medial wall or labyrinthic wall labyrinthine wall is vertical and has the oval window and round window the promontory and the prominence of the facial canal.

The middle ear takes up the space behind the tympanic membrane inside the temporal bone. The tympanic cavity proper directly behind the membrane and the epitympanic recess which is located just above the membrane. The middle ear or middle ear cavity also known as tympanic cavity or tympanum plural. The auditory tube also known as the eustachian tube or the pharyngotympanic tube joins the tympanic cavity with the nasal cavity nasopharynx allowing pressure to equalize between the middle ear and throat.

It gives sensory supply to the liner of middle ear antrum and auditory tube.