buccal cavity

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or·al ves·ti·bule

that part of the mouth bounded anteriorly and laterally by the lips and the cheeks, posteriorly and medially by the teeth and/or gums, and above and below by the reflections of the mucosa from the lips and cheeks to the gums.
Farlex Partner Medical Dictionary © Farlex 2012


(kav'it-e) [L. cavitas, hollow]
A hollow space, such as a body organ or the hole in a tooth produced by caries.

abdominal cavity

The ventral cavity between the diaphragm and pelvis, containing the abdominal organs. It is lined with a serous membrane, the peritoneum, and contains the following organs: stomach with the lower portion of the esophagus, small and large intestines (except sigmoid colon and rectum), liver, gallbladder, spleen, pancreas, adrenal glands, kidneys, and ureters. It is continuous with the pelvic cavity; the two constitute the abdominopelvic cavity. See: abdomen; abdominal quadrants for illus.

alveolar cavity

A tooth socket.

articular cavity

The synovial cavity of a joint.
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body cavity

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1. Any hollow space within the body. See: illustration
2. A hidden body space that is accessible from the outside, e.g., rectum or vagina. Referred to in “body cavity search for contraband”.
3. Derivatives of the coelom, i.e., the pericardial, peritoneal, and plural sacs. See: coelom

buccal cavity

Oral cavity.

cotyloid cavity


cranial cavity

The cavity of the skull, which contains the brain.

dental cavity


dorsal cavity

The body cavity composed of the cranial and spinal cavities. See: body cavity for illus.

glenoid cavity

Glenoid fossa (2).

joint cavity

The articular cavity or space enclosed by the synovial membrane and articular cartilages. It contains synovial fluid. Synonym: joint space

laryngeal cavity

The hollow inside the larynx from its inlet at the laryngopharynx to the beginning of the trachea. It has three segments (from top to bottom): vestibule of the larynx, ventricle of the larynx, infraglottic cavity.

lesser peritoneal cavity

Omental bursa.

medullary cavity

The marrow-filled space in a bone.

nasal cavity

One of two cavities between the floor of the cranium and the roof of the mouth, opening to the nose anteriorly and the nasopharynx posteriorly. Its lining of ciliated epithelium warms and moistens inhaled air, and traps dust and pathogens on mucus that are then swept toward the pharynx. The nasal septum (ethmoid and vomer) separates the nasal cavities, and the olfactory receptors are in the upper part of each cavity. The paranasal sinuses (frontal, maxillary, sphenoidal, and ethmoidal) open into the meatus below the conchae. The orifices of the frontal, anterior ethmoidal, and maxillary sinuses are in the middle meatus. The orifices of the posterior ethmoidal and sphenoidal sinuses are in the superior meatus. The nasal mucosa is highly vascular; blood is supplied by the maxillary arteries from the external carotid arteries and by the ethmoidal arteries from the internal carotid arteries.

oral cavity

The space inside the teeth and gums that is filled by the tongue when the mouth is closed and relaxed.
Synonym: buccal cavity

pelvic cavity

The bony hollow formed by the innominate bones, the sacrum, and the coccyx. The major pelvic cavity lies between the iliac fossae and above the iliopectineal lines. The minor pelvic cavity lies below the iliopectineal lines. See: pelvis

pericardial cavity

The potential space between the epicardium (visceral pericardium) and the parietal pericardium.
See: pericardia friction rub; pericarditis

peritoneal cavity

The potential space between the parietal peritoneum, which lines the abdominal wall, and the visceral peritoneum, which forms the surface layer of the visceral organs. It contains serous fluid.

pleural cavity

The potential space between the parietal pleura that lines the thoracic cavity and the visceral pleura that covers the lungs. It contains serous fluid that prevents friction.

pleuroperitoneal cavity

The ventral body cavity.
See: body cavity for illus.; coelom

pulp cavity

The cavity in a tooth containing blood vessels and nerve endings.

resonating cavities

The anatomic intensifiers of the human voice, including the upper portion of the larynx, pharynx, nasal cavity, paranasal sinuses, and oral cavity.

Rosenmüller cavity

See: Rosenmüller, Johann Christian

serous cavity

The space between two layers of serous membrane (e.g., the pleural, pericardial, and peritoneal cavities).

spinal cavity

The cavity that contains the spinal cord. See: body cavity for illus.

splanchnic cavity

Any of the cavities of the body, such as the cranial, thoracic, and abdominal cavities, that contain important organs.
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thoracic cavity

The part of the ventral cavity above the diaphragm, the domed muscle that separates it from the abdominal cavity; it is enclosed by the chest wall. The thoracic viscera include the pleural membranes that surround the lungs, the mediastinum between the lungs, which contains the heart and pericardial membranes, the thoracic aorta, pulmonary artery and veins, vena cavae, thymus gland, lymph nodes, trachea, bronchi, esophagus, and thoracic duct. See: illustration

tympanic cavity

Middle ear.

uterine cavity

The hollow space inside the body of the uterus.

ventral cavity

The body cavity composed of the thoracic, abdominal, and pelvic cavities. See: body cavity for illus.

visceral cavity

The body cavity containing the viscera (i.e., the thorax, abdomen, and pelvis).
Medical Dictionary, © 2009 Farlex and Partners

or·al ves·ti·bule

(ōr'ăl ves'ti-byūl) [TA]
Mouth area bounded anteriorly and laterally by lips and cheeks, posteriorly and medially by teeth and/or gums, and above and below by reflections of mucosa from lips and cheeks to gums.
Synonym(s): buccal cavity.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about buccal cavity

Q. What is Mouth cancer? My grandfather has been diagnosed with mouth cancer. What is it? Is it dangerous?

A. Cancer of the mouth is dangerous as are all cancers. The earlier this cancer is detected, the better the survival rates are. If the cancer is caught in the first stage the survival rates can go up to 90% of patients surviving five years and most of these will be cured.

Q. What are the symptoms of mouth cancer? I have an ulcer in my mouth that won't go away, could it be cancer?

A. Have you had this ulcer for a long time? over 3 weeks?
If so, consult your GP however don't be alarmed as it isn't necessarily cancer, though it's always better to check it out and not neglect it.

Q. which is a very good treatment for mouth ulcer

A. drink butter milk.

More discussions about buccal cavity
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References in periodicals archive ?
In at least some caenogastropods, this dorsal module becomes the dorsal food channel extending down the roof of the post-metamorphic buccal cavity and into the esophagus.
For a prey to be included in a predator diet, it needs to be localized, pursued, captured, manipulated and ingested (Mittelbach, 2002), Ingestion of the component items of the diet also depends on their palatability and the presence of gustative buttons on the surface or around the buccal cavity, which influences the choice.
--nasal vowels, produced with the velum lowered so that exhaled air passes through both the buccal cavity and the nasal fossae, as in /[??]/, /[??]/, /[??]/, /[??]/.
As a test of this prediction, the presence or absence of steroid hormone receptors in the buccal cavity and/or vomeronasal organ could be empirically confirmed in a range of vertebrate species.
With these prey, fish often completed a feeding sequence by clearing their buccal cavity of accumulated mucous and debris by executing several coughs.
-- The astomatous common carp, 351 mm TL, 256 mm SL, 340.2 grams, also has a tight integument covering the buccal cavity (Fig.
Buccal diverticulum in a buffalo heifer was diagnosed by its symptoms like large spherical and non fluctuating swelling on lateral aspect of buccal cavity in front of masseter muscle with doughy consistency.
The DelRX system reportedly delivers homeopathic and critical therapeutic drugs through the oral mucosa of the buccal cavity.
In the present study, placement of brackets in the buccal cavity caused diminution of the nucleus, an increase in cytoplasm, and a lower nuclear/ cytoplasmic ratio of buccal mucosa cells that were in contact with the brackets.
A few immunoreactive cell bodies were also observed on the upper right region of the buccal cavity [ILLUSTRATION FOR FIGURE 2B OMITTED].
In the field, a presumptive diagnosis can be made on basis of clinical signs like fever, dry muzzle and serous nasal discharge some become mucopurulant, profuse diarrhea, erosion on mucous membrane of buccal cavity are accompained by marked salivation (Harish et al., 2009).