Volume 2

The principles and practice of midwifery ... / Completed and corrected by James Sims.

  • Foster, Edward
Date:
1781
Catalogue details

Licence: Public Domain Mark

Credit: The principles and practice of midwifery ... / Completed and corrected by James Sims. Source: Wellcome Collection.

    19/336 (page 3)
    angular fhape ; broad above, and natrow below; convex and unequal, with hol- lows and proceffes behind; concave, and {mooth before ; with a projection or jetting in of its upper vertebre ; rough, and fca- brous, on its floping edges of each fide ; and fmooth at its ends above and below. It has four holes on each fide of the bodies of the vertebre; where an obfcure line marks their original cartilaginous union. The canal between the bodies and proceffes ‘of the vertebre of this bone, for the cauda equina, is triangular, and becomes fmaller as it defcends, opening backwards into a flit. The fubftance of this bone is very fpongy, with thin external plates. It is articulated above to the loweft of the lum- bar. vertebre, forming an obtufe angle, with the power of confiderable motion ; laterally it is joined to the offa innominata, by immoveable fynchondrofis ; and below. it articulates with the os coccygis, allow~ ing it fome motion, backwards and for- wards. VII. The Os Coccygis, or Cuculi, fo called from its refemblance to a cuckoo’s Hea beak,