Reproduction
Object numberRCSHC/P 438
Scientific nameHomo sapiens
CollectionHunterian
CategoryDry preparations
Object nameCranium, Ankylosis, Morbid Anatomy of Bones - Malformations and Deformations, Mounted dry bone
DescriptionBasilar portion of a skull showing ankylosis of the first cervical vertebrae to the foramen magnum and its surrounding areas.
The atlas is abnormally fused, with ankylosis of both atlanto-occipital joints, fusion of the left arm of the posterior arch to the margin of the foramen magnum (in so doing narrowing its aperture), and fusion of the anterior tubercle to the basilar process. The posterior arch of the vertebra is also abnormally formed, with the absence of the posterior tubercle.
Production date Estimated 1760 - Estimated 1793
Preparator
Owner/user
presented
Related objectsRCSSC/HDB/4/2/375/3
Physical Location
LocationOn display in the Hunterian Museum, Room 4: The Long Gallery
Physical Information
Physical descriptionDry preparation of bone mounted in a cuboid perspex container.
Materialperspex
Dimensions
whole height: 128 mm
whole width: 162 mm
whole depth: 63 mm
whole weight: 312 g
whole width: 162 mm
whole depth: 63 mm
whole weight: 312 g
Bibliography
SourceProger 1966-1972
Vol. 2, page 3.
TranscriptThe posterior part of the base of a skull, with the atlas. The arch of the atlas is defective in the middle line and its left half is ankylosed to the margin of the foramen magnum, forming a complete bony canal for the vertebral artery. The two atlanto-occipital joints are ankylosed, and the anterior arch of the atlas is united by bone in its whole extent to the basilar process. Viewed from above, the foramen magnum is somewhat narrowed in its posterior half, by projection of the lateral margin.
Page 50.
NotesListed in William Clift's catalogue of the drawings of morbid anatomy as Drawing No. 73, page 50. Attributed by Clift to William Bell, so before 1789.
SourceClift 1830 Part 2
NotesCatalogue number is 310.
TranscriptThe condyles of the os occipitis anchylosed to the atlas.
