| 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... |
| ACD | absolute cardiac dullness; absolute claudication distance; acid-citrate-dextrose [solution]; actinom... |
| ACF | accessory clinical findings; acute care facility; anterior cervical fusion; area correction factor; ... |
| AChA | anterior choroidal artery |
| sulcus frontomarginalis | A relatively shallow sagittal fissure of the brain dividing the middle frontal convolution into an upper and lower part; this sulcus is found only in humans and anthropoid apes; at its anterior extremity it bifurcates, the two branches spreading out laterally and constituting the frontomarginal sulcus. Synonym: median frontal sulcus, sulcus frontalis medius. (05 Mar 2000) |
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| sulcus gingivalis | The space between the surface of the tooth and the free gingiva. Synonym: sulcus gingivalis, gingival crevice, gingival space, subgingival space. (05 Mar 2000) |
| sulcus gluteus | A prominent fold that marks the upper limit of the thigh from the lower limit of the buttock; it coincides with the lower border of the gluteus maximus muscle; the furrow between the buttock and thigh. Synonym: sulcus gluteus, gluteal furrow. (05 Mar 2000) |
| sulcus hamuli pterygoidei | A groove at the base of the hamular process which forms a pulley for the tendon of the tensor veli palatini muscle. Synonym: sulcus hamuli pterygoidei, sulcus of pterygoid hamulus. (05 Mar 2000) |
| sulcus hippocampi | A shallow groove between the dentate gyrus and the parahippocampal gyrus; the remains of a fissure extending deep into the hippocampus between Ammon's horn and the dentate gyrus which becomes obliterated during foetal development. Synonym: sulcus hippocampi, dentate fissure, fissura dentata, fissura hippocampi, hippocampal fissure. (05 Mar 2000) |
| sulcus hypothalamicus | A groove in the lateral wall of the third ventricle on either side leading from the interventricular foramen to the aditus ad aqueductum cerebri; the sulcus-demarcated boundary between dorsal thalamus and hypothalamus. Synonym: sulcus hypothalamicus, Monro's sulcus. (05 Mar 2000) |
| sulcus infraorbitalis | A gradually deepening groove on the orbital surface of the maxilla, which leads to the infraorbital canal. Synonym: sulcus infraorbitalis. (05 Mar 2000) |
| sulcus infrapalpebralis | The hollow or furrow below the lower eyelid. Synonym: sulcus infrapalpebralis. (05 Mar 2000) |
| sulcus intermedius posterior | A longitudinal furrow between the posterior median and the posterolateral sulci of the spinal cord in the cervical region, marking the gracile fasciculus from the cuneate fasciculus. Synonym: sulcus intermedius posterior, posterior intermediate groove. (05 Mar 2000) |
| sulcus intertubercularis | A furrow running down the shaft of the humerus between the two tubercles, lodging the tendon of the long head of the biceps, and giving attachment in its floor to the latissimus dorsi muscle. Synonym: sulcus intertubercularis, bicipital groove, intertubercular sulcus. (05 Mar 2000) |
| sulcus interventricularis cordis | See: anterior interventricular groove, posterior interventricular groove. (05 Mar 2000) |
| sulcus interventricularis posterior | A groove on the diaphragmatic surface of the heart, marking the location of the septum between the two ventricles. Synonym: sulcus interventricularis posterior, crena cordis. (05 Mar 2000) |
| sulcus intragracilis | A fissure between the gracilis minor and gracilis posterior lobuli of the cerebellum. Synonym: sulcus intragracilis. (05 Mar 2000) |
| sulcus intraparietalis | A horizontal sulcus extending back from the postcentral sulcus over some distance, then dividing perpendicularly into two branches so as to form, with the postcentral sulcus, a figure H. It divides the parietal lobe into superior and inferior parietal lobules. Synonym: sulcus intraparietalis, interparietal sulcus, intraparietal sulcus of Turner, Turner's sulcus. (05 Mar 2000) |
| sulcus lacrimalis | The groove in the nasal surface of the maxilla which, together with the lacrimal bone, forms the fossa for the lacrimal sac. Synonym: sulcus lacrimalis. (05 Mar 2000) |