(n.) Any American marsupial of the genera Didelphys and Chironectes. The common species of the United States is Didelphys Virginiana.
Example Sentences:
(1) The anatomic and functional development of the suprachiasmatic nuclei (SCN) was studied in the gray short-tailed opossum, Monodelphis domestica.
(2) Circular muscle strips from the opossum esophageal body obtained 3-5 cm above the esophagogastric junction were suspended in organ baths for measurement of isometric tension.
(3) Besides the relative abundance and the high infection rate of the opossum (62.5% by direct methods), its natural association with T. dimidiata was likewise demonstrated.
(4) Two of three noninoculated pouch mates acquired infections during the study based on examinations of feces and tissue sections of all eight opossums.
(5) EFS and VIP both caused relaxation of the resting tone in the opossum-isolated IAS smooth muscle strips.
(6) These findings are discussed with respect to similarities and differences between marsupial and eutherian females and between male and female gray opossums in the hormonal control of sexually dimorphic behavior and morphology.
(7) In the newborn opossum lung, examination of the air chambers with the scanning electron microscope permits the observation of several type II pulmonary epithelial cells in a single field.
(8) We recorded lower esophageal sphincter (LES) pressure and myoelectrical activity concurrently from the esophagus, LES, stomach, and proximal small intestine in unanesthetized opossums.
(9) The effects of intracellular pH on an inwardly rectifying K+ channel ("Kin channel") in opossum kidney (OK) cells were examined using the patch-clamp technique.
(10) Using the North American opossum, Didelphis virginiana, we have developed a new model for studying the effects of early fetal urinary obstruction on subsequent renal development.
(11) A study was designed to measure the Toxoplasma gondii-specific IgM and IgG antibody responses of opossums inoculated with tachyzoites of the temperature-sensitive mutant of T. gondii, ts-4, and to examine its persistence in the tissues.
(12) These results indicate that estrogen receptors are present in early development of the Monodelphis brain and may mark the beginning of a critical period for sexual differentiation of the opossum brain.
(13) The large liquor-contacting area in the pineal recess region, as well as the peculiar organization of its surface, suggest a complex interrelationship between the liquor and the pineal gland of the opossum.
(14) The findings suggested that a receptor resembling DA1-type peripheral receptor mediated the effects of dopamine on opossum oesophagus.
(15) Four young opossums seronegative for anti-Toxoplasma gondii IgM and IgG antibodies immediately after capture and 4 wk later were injected subcutaneously with 1.8 x 10(6) ts-4 tachyzoites; a fifth opossum (also seronegative) received an injection of saline only.
(16) The effects of ambient temperature and of sex on nest-building behavior were studied in a laboratory colony of gray short-tailed opossums, small, Brazilian marsupials.
(17) Opossums that ate the cowbirds had prepatent periods of 5 and 10 days and remained patent for at least 105 days.
(18) Volume regulatory responses of OK cells (a continuous epithelioid cell line from opossum kidney) are examined by electronic cell sizing and measurements of intracellular pH in cell suspensions.
(19) We studied the genesis of isolated LES relaxation in anesthetized opossums by observing the response of four components of the deglutition reflex (mylohyoid electrical activity, pharyngeal contraction, esophageal peristalsis, and LES relaxation) to pharyngeal tactile stimulation, electrical stimulation of superior laryngeal nerve (SLN) afferents or cervical vagal efferents, and to balloon distention of the esophageal body.
(20) In some opossums weak relaxations also occurred in the first few strips below the mucosal junction.
Skunk
Definition:
(n.) Any one of several species of American musteline carnivores of the genus Mephitis and allied genera. They have two glands near the anus, secreting an extremely fetid liquid, which the animal ejects at pleasure as a means of defense.
(v. t.) In games of chance and skill: To defeat (an opponent) (as in cards) so that he fails to gain a point, or (in checkers) to get a king.
Example Sentences:
(1) To our knowledge, this is the first documentation of the successful seroconversion of skunks and raccoons vaccinated against rabies in the field.
(2) Morphological interactions of tropholbast and uterus from stages of preimplantation and implantation were studied in 14 western spotted skunks.
(3) This is the first report of a high rate of immunization of skunks with a rabies vaccine administered orally.
(4) In three cases (fox, raccoon, skunk) SAFA titers were greater than mouse SN titers.
(5) Blastocysts collected from the spotted skunk during delay of implantation, early activation and late activation demonstrate three-tiered growth and developmental changes.
(6) Batmanghelidjh helped him come off skunk and found a sympathetic private tutor to make up his lost years of schooling.
(7) The only significant management change prior to illness was the feeding of poplar tree branches from a lowland area inhabited by skunks and raccoons.
(8) Additionally, challenge virus standard (CVS) rabies virus and mutants of this and ERA rabies virus (CVS 3766 and 3713, and ERA 3629) that were resistant to neutralization by specific antiglycoprotein monoclonal antibodies (and apathogenic in mice) were tested by various routes in skunks.
(9) Infection of CER and murine neuroblastoma (clone N18) cell cultures by inoculation of brain tissue from rabid skunks, dogs, equines, foxes, bats and cows was detected by immunofluorescence 2--5 days after inoculation.
(10) Electrophoretic zymogram patterns of the T. cruzi populations isolated from opossums and skunks were similar to isoenzyme profiles already described for populations isolated from infected humans in Argentina.
(11) The skunks were subjected to a natural photoperiod.
(12) The number and geographic distribution of rabies cases in striped skunks (Mephitis mephitis) from Saskatchewan (n = 2,506 cases), Montana (n = 1,142), and Alberta (n = 199) since 1963 were reviewed.
(13) A new recombinant rabies vaccine (human adenovirus 5 containing the rabies glycoprotein gene) was given to striped skunks (Mephitis mephitis) and red foxes (Vulpes vulpes).
(14) On the other hand, the virus from the brains of skunks from Ontario readily infected neuroblastoma but poorly infected baby hamster kidney cell cultures.
(15) It didn't lure me astray – I'm done with my youthful experimenting – but it did occur to me that it was not all that helpful to parents trying to warn their kids not to try skunk when they could sample it just by breathing the air.
(16) Expecting a bold "liveable streets" approach from it is like asking a skunk to smell sweet.
(17) Percentage infection was 5% (n = 22) for ticks from skunks and 14% (n = 191) for ticks from raccoons.
(18) The similarity of lesions and the finding of inclusions diagnostic of canine distemper virus (CDV) in some skunks indicated that CDV may be the main cause of neurologic disease in nonrabid skunks.
(19) Leptospira interrogans serotype pomona was isolated from the kidneys of a normal striped skunk (Mephitis mephitis hudsonicus) collected near Kindersley, Saskatchewan.
(20) 12 female skunks were hypophysectomized during the 7-month preimplantation period.