| cavum pericardii | The potential space between the parietal and the visceral layers of the serous pericardium, in the embryo, that part of the primary celom containing the heart; originally it is in open communication with the pericardioperitoneal cavity's and indirectly, through them, with the peritoneal part of the celom. Synonym: cavitas pericardialis, cavum pericardii. (05 Mar 2000) |
|---|---|
| cavum peritonei | The space enclosed by the peritoneum. It is divided into two portions, the greater sac and the lesser sac or omental bursa, which lies behind the stomach. The two sacs are connected by the foramen of winslow, or epiploic foramen. (12 Dec 1998) |
| cavum pharyngis | It consists of a nasal part (nasopharynx) continuous anteriorly with the nasal cavity and receiving the openings of the auditory tubes, an oral part (oropharynx) opening through the fauces into the oral cavity, and a laryngeal part (laryngopharynx) leading into the vestibule of the larynx and to the oesophagus. Synonym: cavitas pharyngis, cavum pharyngis. (05 Mar 2000) |
| cavum pleurae | The potential space which lies in between the visceral pleura and the parietal pleura. (27 Sep 1997) |
| cavum psalterii | An inconstant, horizontal, slitlike space between the posterior one-third of the corpus callosum and the underlying commissura fornicis (commissura hippocampi; psalterium) resulting from failure of these two commissural plates to fuse completely during foetal development; like the cavity of the septum pellucidum, the space is not a true ventricle in the sense that it did not develop from the central canal of the neural tube. Synonym: cavum psalterii, cavum vergae, sixth ventricle. (05 Mar 2000) |
| cavum retzii | The area of loose connective tissue between the bladder with its related fascia and the pubis and anterior abdominal wall. Synonym: spatium retropubicum, cavum retzii, Retzius' cavity, Retzius' space. (05 Mar 2000) |
| cavum septi pellucidi | A slitlike, fluid-filled space of variable width between the left and right transparent septum, which occurs in less than 10% of human brains and may communicate with the third ventricle. Synonym: cavum septi pellucidi, Duncan's ventricle, fifth ventricle, pseudocele, pseudoventricle, sylvian ventricle, ventricle of Sylvius, ventriculus quintus, Vieussens' ventricle, Wenzel's ventricle. (05 Mar 2000) |
| cavum subarachnoideum | The space between the arachnoidea and pia mater, traversed by delicate fibrous trabeculae and filled with cerebrospinal fluid. Since the pia mater immediately adheres to the surface of the brain and spinal cord, the space is greatly widened wherever the brain surface exhibits a deep depression (for example, between the cerebellum and medulla); such widenings are called cisternae. The large blood vessels supplying the brain and spinal cord lie in the subarachnoid space. Synonym: cavum subarachnoideum, subarachnoid cavity. (05 Mar 2000) |
| cavum subdurale | Originally thought to be a narrow fluid-filled interval between the dural and arachnoid; now known to be an artificial space created by the separation of the arachnoid from the dura as the result of trauma or some ongoing pathologic process; in the healthy state, the arachnoid is attached to the dura and a naturally occurring subdural space is not present. Synonym: spatium subdurale, cavum subdurale, subdural cavity, subdural cleavage, subdural cleft. (05 Mar 2000) |
| cavum thoracis | The space within the thoracic walls, bounded below by the diaphragm and above by the neck. Synonym: cavitas thoracis, cavum thoracis. (05 Mar 2000) |
| cavum trigeminale | The cleft in the meningeal layer of dura of the middle cranial fossa near the tip of the petrous part of the temporal bone; it encloses the roots of the trigeminal nerve and the trigeminal ganglion. Synonym: cavum trigeminale, Meckel's cavity, Meckel's space, trigeminal cavity. (05 Mar 2000) |
| cavum tympani | An air chamber in the temporal bone containing the ossicles; it is lined with mucous membrane and is continuous with the auditory tube anteriorly and the tympanic antrum and mastoid air cells posteriorly. Synonym: cavitas tympanica, cavity of middle ear, cavum tympani, tympanum. (05 Mar 2000) |
| cavum vergae | An inconstant, horizontal, slitlike space between the posterior one-third of the corpus callosum and the underlying commissura fornicis (commissura hippocampi; psalterium) resulting from failure of these two commissural plates to fuse completely during foetal development; like the cavity of the septum pellucidum, the space is not a true ventricle in the sense that it did not develop from the central canal of the neural tube. Synonym: cavum psalterii, cavum vergae, sixth ventricle. (05 Mar 2000) |
| cavum vesicouterinum | uterovesical pouch |
| sulcus olfactorius cavum nasi | The narrow groove in the nasal cavity above the agger nasi that leads from the atrium to the olfactory area. Synonym: sulcus olfactorius cavum nasi. (05 Mar 2000) |