cranial cavity

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Related to intracranial cavity: abdominal cavity, Spinal cavity, Body cavities


1. a hollow or space, or a potential space, within the body or one of its organs; called also caverna and cavum.
2. the lesion produced by dental caries.
Cavities in the body. From Applegate, 2000.
abdominal cavity the cavity of the body between the diaphragm above and the pelvis below, containing the abdominal organs.
absorption c's cavities in developing compact bone due to osteoclastic erosion, usually occurring in the areas laid down first.
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.
marrow cavity (medullary cavity) the cavity that contains bone marrow in the diaphysis of a long bone; called also medullary canal.
nasal cavity the proximal portion of the passages of the respiratory system, extending from the nares to the pharynx; it is divided into left and right halves by the nasal septum and is separated from the oral cavity by the hard palate.
oral cavity the cavity of the mouth, bounded by the jaw bones and associated structures (muscles and mucosa).
pelvic cavity the space within the walls of the pelvis.
pericardial cavity the potential space between the epicardium and the parietal layer of the serous pericardium.
peritoneal cavity the potential space between the parietal and the visceral peritoneum.
pleural cavity the potential space between the two layers of pleura.
pulp cavity the pulp-filled central chamber in the crown of a tooth.
cavity of septum pellucidum the median cleft between the two laminae of the septum pellucidum. Called also pseudocele, pseudocoele, and fifth ventricle.
serous cavity a coelomic 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.
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.
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. The middle ear and the tympanic cavity were formerly regarded as being synonymous.
uterine cavity the flattened space within the uterus communicating proximally on either side with the fallopian tubes and below with the vagina.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cra·ni·al cav·i·ty

the space within the cranium occupied by the brain, its coverings, and cerebrospinal fluid.
Farlex Partner Medical Dictionary © Farlex 2012

cra·ni·al cav·i·ty

(krā'nē-ăl kav'i-tē) [TA]
The space within the skull occupied by the brain, its coverings, and cerebrospinal fluid.
Synonym(s): intracranial cavity.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

cra·ni·al cav·i·ty

(krā'nē-ăl kav'i-tē) [TA]
Space within cranium occupied by brain, its coverings, and cerebrospinal fluid.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
* The ball-valve effect occurs when air is forced from an air-containing extracranial space (e.g., the nasopharynx or the middle ear and mastoid air cell system) into an intracranial cavity through a fistulous connection.
As a result of the negative pressure gradient from the extra- to the intracranial cavity, air is drawn in through a bony or dural defect in the skull base.
Obviously, the presence of a foreign body in the intracranial cavity can result in disastrous complications, including intracranial penetration.
Although the wire did not appear to penetrate the intracranial cavity, its proximity to the cribriform plate engendered significant attention.
Either radiologic technique may demonstrate tumor involvement of the nasopharynx, intracranial cavity, paranasal sinuses, orbits, infratemporal fossa, and pterygopalatine fossa.
In our patient, however, the tumor appeared to have originated in the ethmoid sinus and then spread to the intracranial cavity. T cell lymphomas are characterized by progressive ulceration and necrosis, which are not typical of B cell lymphomas.
The subsequent expansion of the tumor within the internal auditory canal may have led to the thinning of the bone that separated the air cells from the intracranial cavity and led to the opening of the air cells.
An infection in the sinus cavity can easily spread to the orbit or to the orbital or intracranial cavity because the anatomy is so closely interrelated.

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