amniotic cavity


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Related to amniotic cavity: amniotic fluid, chorion, yolk sac

cavity

 [kav´ĭ-te]
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.

amniotic cavity

the space within the AMNION.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
The odds of stillbirth were elevated for women who had multiple gestations (6.2) and for those who had various diseases or substance dependence-for example, hypertension (1.1), tobacco dependence (1.1), other substance use or dependence (1.7) and infection of the amniotic cavity (5.1).
(32) Another observational study demonstrated increased amniotic fluid volume and uteroplacental perfusion without alteration of fetal urine production suggesting the possibility that transmembranous fluid shifts from the placenta to the amniotic cavity may be involved.
In fact, it raises more questions, such as how the fetus eliminates the DNA from its amniotic cavity. Does the free DNA cross the placenta, or is it swallowed and degraded in the fetal intestines?
Ascorbic acid is transported across the placenta and amniotic membranes from the mother to the amniotic cavity. So, presumably increasing the ingestion of ascorbic acid would boost levels of the antioxidant in the amniotic fluid, he said.
Until complete fusion of the neural plate, the cranial and caudal ends of neural tube communicate with the amniotic cavity through anterior and posterior neuropores.
He and his associates conducted a prospective study in which 41 pregnant women were divided into four groups according to the presence or absence of inflammation in the amniotic cavity, the fetus, both compartments, or neither.
At the indicated times, ranging between the 15th and 18th weeks of gestation, 500-[micro]L heparin-treated amniotic fluid samples taken from the amniotic cavity were immediately centrifuged at 900g for 10 min, and the supernatants were stored at -70 [degrees]C before measurement.
Magnesium sulfate and other magnesium salts also have been associated with increased bacterial virulence and resistance to antimicrobial agents in previous reports, By giving women with PPROM magnesium sulfate, "we may actually be making the amniotic cavity a better environment for the bacteria to grow," he said in a poster presentation at the meeting.
The value of amniotic fluid interleukin-6, white blood cell count, and Gram stain in the diagnosis of microbial invasion of the amniotic cavity in patients at term.
He first examined potential transmission during amniocentesis, since maternal blood visibly enters the amniotic cavity in 38% of nontransplacental procedures and 80%-90% of procedures performed through the placenta.
Microbial invasion of the amniotic cavity has been demonstrated in 16.1% of women with preterm labor and intact membranes [1].