| VPC | 1) Ventricular Premature Contraction 2) Vertical Palmar Crease |
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| ac | acceleration; acetyl; acid; acromioclavicular; acute; alternating current; antecubital; anterior cha... |
| ACC | accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; acute care center; adenoid cyst... |
| ADC | adult day care [facility]; affective disorders clinic; Aid to [Families with] Dependent Children; AI... |
| ANCC, AnCC | anodal closure contraction |
| ectoplasmic tube contraction | <cell biology> Model for amoeboid movement in which it is proposed that protrusion of a pseudopod is brought about by contraction of the sub plasmalemmal region everywhere else in the cell thus squeesing the central cytoplasm forwards. See: frontal zone contraction theory. (18 Nov 1997) |
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| tonic contraction | Sustained contraction of a muscle, as employed in the maintenance of posture. (05 Mar 2000) |
| escape contraction | Escaped beat, an automatic beat, usually arising from the A-V junction or ventricle, occurring after the next expected normal beat has defaulted; it is therefore always a late beat, terminating a longer cycle than the normal. Synonym: escape contraction. (05 Mar 2000) |
| escape ventricular contraction | An escape beat arising in the ventricle. (05 Mar 2000) |
| excitation contraction coupling | <physiology> Name given to the chain of processes coupling excitation of a muscle by the arrival of a nervous impulse at the motor end plate to the contraction of the filaments of the sarcomere. The crucial link is the release of calcium from the sarcoplasmic reticulum and the analogy is often drawn between this and stimulus secretion coupling, that also involves calcium release into the cytoplasm. (18 Nov 1997) |
| uterine contraction | Contraction of the uterine muscle. (12 Dec 1998) |
| frontal zone contraction theory | Model proposed to account for the movement of giant amoebae in which cytoplasmic contraction at the front of the leading pseudopod (fountain zone) pulls viscoelastic cytoplasm forward in the centre of the cell and forms a tube of more rigid cytoplasm immediately below the plasma membrane behind the active region. The peripheral contracted cytoplasm relaxes into a weaker gel at the rear and is pulled forward in its turn. Contrasts with the ectoplasmic tube contraction model. (18 Nov 1997) |
| front-tap contraction | Contraction of the calf muscles when the anterior surface of the leg is struck. Synonym: Gowers' contraction. (05 Mar 2000) |
| anomalous uterus | A malformed uterus caused by abnormal development or fusion of the paramesonephric ducts. (05 Mar 2000) |
| arcuate uterus | A uterus with a depression at the fundus; an incomplete uterus bicornis. Synonym: uterus arcuatus. (05 Mar 2000) |
| artery of round ligament of uterus | Origin, inferior epigastric; distribution, round ligament of uterus. Synonym: arteria ligamenti teretis uteri. (05 Mar 2000) |
| bicornate uterus | A uterus that is more or less completely divided into two lateral horns as a result of imperfect fusion of the paramesonephric ducts; it differs from septate uterus, in which there is no external mark of separation; in uterus bicornis, the cervix may be single (uterus bicornate unicollis) or double (uterus bicornate bicollis). Synonym: bifid uterus, uterus bicornis, uterus bifidus. (05 Mar 2000) |
| bifid uterus | A uterus that is more or less completely divided into two lateral horns as a result of imperfect fusion of the paramesonephric ducts; it differs from septate uterus, in which there is no external mark of separation; in uterus bicornis, the cervix may be single (uterus bicornate unicollis) or double (uterus bicornate bicollis). Synonym: bifid uterus, uterus bicornis, uterus bifidus. (05 Mar 2000) |
| biforate uterus | Septate uterus in which the cervix is divided into two by a septum. Synonym: double-mouthed uterus, uterus biforis. (05 Mar 2000) |
| bipartite uterus | A uterus divided into two cavities by an anteroposterior septum. Synonym: bipartite uterus, uterus bilocularis, uterus bipartitus, uterus septus. (05 Mar 2000) |