pulp cavity. the pulp-filled central chamber in a tooth; called also dental cavity. serous cavity. a celomic cavity, like that enclosed by the pericardium, peritoneum or pleura, not communicating with the outside of the body and lined with a serous membrane, i.e. one which secretes a serous fluid.
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Middle ear. Also known as the tympanic cavity, the middle ear is an air-filled, membrane-lined space located between the ear canal and the Eustachian tube, cochlea, and auditory nerve. The eardrum separates this space from the ear canal. The area is pressurized. The eardrum acts as a natural boundary between the middle ear and the ear canal. Pressure in the middle ear is maintained through the Eustachian tubes, which are closed when not in use. Each time a person swallows, the Eustachian tubes open and allow fresh air to enter into the tympanic cavity.
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Figure 44-3 The tympanic cavity and communicating air spaces. Right lateral aspect. Figure 44-4 Drawing of the ear by Max Brodel (with lettering modified), showing the osseous labyrinth, cranial nerves VII and VIII, and the auditory tube.
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The middle ear consists largely of an air space in the temporal bone. This tympanic cavity contains the auditory ossicles and communicates with (1) the mastoid air cells and mastoid antrum by means of the aditus and (2) the nasopharynx by means of the auditory tube (figs. 44-3 and 44-4).
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The ear drum (fig. 44-2), about 1 cm in diameter, separates the external meatus from the tympanic cavity. Its fibrous basis is attached to the tympanic plate of the temporal bone and is covered laterally by epidermis and medially by the mucous membrane of the middle ear.
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The rostral end of the cavity just inside the nostril is the nasal vestibule, and the caudal part opening into the pharynx is the nasopharyngeal meatus. oral cavity. the cavity of the mouth, made up of a vestibule and oral cavity proper. pelvic cavity. the space within the walls of the pelvis.
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tympanic cavity the major portion of the middle ear, consisting of a narrow air-filled cavity in the temporal bone that contains the auditory ossicles and communicates with the mastoid air cells and the mastoid antrum by means of the aditus and the nasopharynx by means of the auditory tube.
http://medical-dictionary.thefreedictionary.com/tympanic+cavity
amniotic cavity the closed sac between the embryo and the amnion, containing the amniotic fluid. cranial cavity the space enclosed by the bones of the cranium. glenoid cavity a depression in the lateral angle of the scapula for articulation with the humerus.
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44-1 The tympanic membrane is a sandwich composed of epidermis, a fibrous core, and mucosa (on the middle ear side). The membrane is incised (myringotomy) in the postero-inferior quadrant of the pars tensa to avoid the ossicles and chorda tympani.
http://www.dartmouth.edu/%7Ehumananatomy/part_8/chapter_44.html
tension cavity cavities of the lung in which the air pressure is greater than that of the atmosphere. thoracic cavity the portion of the ventral body cavity situated between the neck and the diaphragm; it contains the pleural cavity.
http://medical-dictionary.thefreedictionary.com/tympanic+cavity
tympanic cavity contains what fluid
Tympanic cavity contains auditory ossicles.