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.

buccal cavity

the vestibule of the mouth, specifically the area lying between the teeth and cheeks.


(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).

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.


pertaining to or directed toward the cheek.

buccal administration
drugs may be absorbed across buccal mucosa, directly into the venous circulation. Called also sublingual administration.
buccal cavity
see mouth.
buccal horsepox
buccal mucosa bleeding time
see bleeding time.

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
References in periodicals archive ?
The development of zinc lozenges that release zinc ions in the buccal cavity can have great benefits for both local actions to combat respiratory tract viruses and to facilitate general zinc repletion.
IND approval follows on the earlier approval of a Canadian IND and the completion of a successful proof of concept study of morphine delivered systemically through the buccal cavity.
The Canadian IND approval follows on the completion earlier this year of a successful proof of concept study of morphine delivered systemically through the buccal cavity (inside of the mouth) via the company's proprietary technology.
In a double blind, randomized study, type-2 diabetic patients failing on oral agents received oral insulin or placebo puffs in the buccal cavity via Generex' Rapidmist(TM) device in combination with pioglitazone tablets.
In a double blind, randomised study, type-2 diabetic patients failing on oral agents received oral insulin or placebo puffs in the buccal cavity via Generex' Rapidmist(TM) device in combination with pioglitazone tablets.
The study was designed to examine and report on oral cavity epithelial cell cytology (changes in buccal cavity membrane) and hematological changes including a complete blood count and a biochemical profile including serum electrolytes, as well as urine analysis, arterial blood pressure, and an electrocardiogram on all dogs.
Generex's strategy is to encapsulate large-molecule pharmaceuticals (such as insulin) using a proprietary micellar formulation that serves to protect the drug from enzymatic degradation while at the same time enhancing the penetration of the mist droplets into the buccal cavity (inner cheek walls).
Under the agreement, Generex will purchase its requirements for this propellant from Solvay, and Solvay will supply the propellant exclusively to Generex for use with pharmaceutical products delivered to the buccal cavity.