| appendix testis | A small solid projection of tissue on the outer surface of the testis which is a remnant of the embryologic mullerian duct. (12 Dec 1998) |
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| appendix ventriculi laryngis | A small diverticulum provided with mucous glands extending upward from the ventricle of the larynx between the vestibular fold and the lamina of the thyroid cartilage; it is a vestigial structure, being a much larger structure interdigitating with the neck musculature in some of the great apes where it serves as a resonating chamber. Synonym: sacculus laryngis, appendix ventriculi laryngis, Hilton's sac, laryngeal pouch. Origin: L. Sacculus (05 Mar 2000) |
| appendix vermiformis | A wormlike intestinal diverticulum extending from the blind end of the caecum; it varies in length and ends in a blind extremity. Synonym: appendix vermiformis, appendix ceci, processus vermiformis, vermiform appendage, vermiform process, vermix. (05 Mar 2000) |
| appendix vesiculosa | A small fluid-filled cyst attached by a slender stalk to the fimbriated end of the uterine tube; a vestigial remnant of the embryonic mesonephric duct. Synonym: appendix vesiculosa, Morgagni's hydatid, morgagnian cyst, stalked hydatid, vesicular appendage. (05 Mar 2000) |
| auricular appendix | A small conical ("ear-shaped") pouch projecting from the upper anterior portion of each atrium of the heart, increasing slightly the atrial volume. See: auricle of left atrium, auricle of right atrium. Synonym: auricula atrialis, atrial auricle, atrial auricula, auricle, auricula, auricular appendage, auricular appendix, skin tag. (05 Mar 2000) |
| mesentery of appendix | The short mesentery of the appendix lying behind the terminal ileum, in which the appendicular artery courses. Synonym: mesenteriolum processus vermiformis, mesentery of appendix. (05 Mar 2000) |
| ruptured appendix | <surgery> Advanced appendicitis (delayed surgery) can result in a ruptured appendix. Clinically, the patient will have increased abdominal pain, diffusely over the entire abdomen (rather than just the right-lower quadrant. The fever usually becomes high-grade (over 101 degrees Fahrenheit) and the white blood cell count that typically exceeds 20,000 cells per cubic millimetre. Surgery for this condition is associated with higher morbidity. (17 Dec 1997) |
| Morgagni's appendix | <anatomy> An inconstant narrow lobe of the thyroid gland that arises from the upper border of the isthmus and extends upward, sometimes as far as the hyoid bone; it marks the point of continuity with the thyroglossal duct. Synonym: lobus pyramidalis glandulae thyroideae, Lallouette's pyramid, Morgagni's appendix, pyramid of thyroid. (05 Mar 2000) |
| epiploic appendix | A finger-like projection of fat attached to the colon. (12 Dec 1998) |
| fibrous appendix of liver | A fibrous process, into which the tip of the left lobe of the liver may taper out, that passes with the left triangular ligament to be attached to the diaphragm. Synonym: appendix fibrosa hepatis. (05 Mar 2000) |
| access opening | 1. A coming to, or near approach; admittance; admission; accessibility; as, to gain access to a prince. "I did repel his letters, and denied His access to me." (Shak) 2. The means, place, or way by which a thing may be approached; passage way; as, the access is by a neck of land. "All access was thronged." 3. Admission to sexual intercourse. "During coverture, access of the husband shall be presumed, unless the contrary be shown." (Blackstone) 4. Increase by something added; addition; as, an access of territory. [In this sense accession is more generally used] "I, from the influence of thy looks, receive Access in every virtue." (Milton) 5. An onset, attack, or fit of disease. "The first access looked like an apoplexy." (Burnet) 6. A paroxysm; a fit of passion; an outburst; as, an access of fury. Origin: F. Acces, L. Accessus, fr. Accedere. See Accede. Source: Websters Dictionary (01 Mar 1998) |
| anodal opening contraction | An obsolete term for the momentary contraction of a muscle under the influence of the positive pole when the circuit is broken. (05 Mar 2000) |
| anodal opening tetanus | An obsolete term for a tonic contraction in a muscle, to which the anode is applied, when the circuit is opened. (05 Mar 2000) |
| aortic opening | The opening in the diaphragm bounded by the two crura, the vertebral column, and the median arcuate ligament, through which pass the aorta and thoracic duct. Synonym: hiatus aorticus, aortic foramen, aortic opening. (05 Mar 2000) |
| cardiac opening | The trumpet-shaped opening of the oesophagus into the stomach. Synonym: ostium cardiacum, cardiac opening, oesophagogastric orifice. (05 Mar 2000) |