| coccygeal whorl | A spiral arrangement of coarse hairs sometimes present over the region of the coccyx. Synonym: coccygeal whorl. (05 Mar 2000) |
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| arch-loop-whorl system | See: Galton's system of classification of fingerprints. (05 Mar 2000) |
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| whorl | <botany> A ring of leaves, bracts or floral parts borne at the same level on a main stem. (13 Nov 1997) |
| digital whorl | <botany> A ring of leaves, bracts or floral parts borne at the same level on a main stem. (13 Nov 1997) |
| coccygeal | Relating to the coccyx. (05 Mar 2000) |
| coccygeal body | An arteriovenous (arteriolovenular) anastomosis supplied by the middle sacral artery and located on the pelvic surface of the coccyx. It was formerly called a gland (of Luschka) or a glomus and included with the paraganglia. Synonym: corpus coccygeum, arteriococcygeal gland, coccygeal gland, glomus coccygeum. (05 Mar 2000) |
| coccygeal bone | <anatomy> The last bone of the spinal column, sometimes referred to as man's vestigial tail. The last portion of the vertebral column just below the sacrum. (27 Sep 1997) |
| coccygeal cornua | Two processes that project upward from the dorsum of the base of the coccyx to articulate with the sacral cornua. Synonym: cornua coccygealia, coccygeal horn. (05 Mar 2000) |
| coccygeal dimple | A depression in the skin over the coccyx caused by the caudal retinaculum. Synonym: foveola coccygea, coccygeal dimple. (05 Mar 2000) |
| coccygeal fistula | A fistulous opening of a dermoid cyst in the coccygeal region. (05 Mar 2000) |
| coccygeal foveola | A depression in the skin over the coccyx caused by the caudal retinaculum. Synonym: foveola coccygea, coccygeal dimple. (05 Mar 2000) |
| coccygeal ganglion | The most inferior, unpaired ganglion of the sympathetic trunk; inconstant. Synonym: coccygeal ganglion, Walther's ganglion. (05 Mar 2000) |
| coccygeal gland | An arteriovenous (arteriolovenular) anastomosis supplied by the middle sacral artery and located on the pelvic surface of the coccyx. It was formerly called a gland (of Luschka) or a glomus and included with the paraganglia. Synonym: corpus coccygeum, arteriococcygeal gland, coccygeal gland, glomus coccygeum. (05 Mar 2000) |
| coccygeal horn | Two processes that project upward from the dorsum of the base of the coccyx to articulate with the sacral cornua. Synonym: cornua coccygealia, coccygeal horn. (05 Mar 2000) |
| coccygeal joint | The cartilaginous articulation of the coccyx with the sacrum. Synonym: articulatio sacrococcygea, coccygeal joint, junctura sacrococcygea, sacrococcygeal junction, symphysis sacrococcygea. (05 Mar 2000) |
| coccygeal muscle | <anatomy, muscle> Origin, spine of ischium and sacrospinous ligament; insertion, sides of lower part of sacrum and upper part of coccyx; action, assists in support of pelvic floor, especially when intra-abdominal pressures increase; nerve supply, third and fourth sacral. Synonym: musculus coccygeus, coccygeal muscle, musculus ischiococcygeus. (05 Mar 2000) |