A manual for the College of Surgeons in London, Dublin, and Edinburgh: intended for the use of candidates for examinations and practitioners / [John Steggall].
- Steggall, John, 1795?-1871.
- Date:
- 1839
Licence: Public Domain Mark
Credit: A manual for the College of Surgeons in London, Dublin, and Edinburgh: intended for the use of candidates for examinations and practitioners / [John Steggall]. Source: Wellcome Collection.
101/788 page 91
![METACARPAL BONES. 9] bones, the scaphoid, lunar, the second, third, and fourth metacarpal bones, the trapezoides, and the unciform, Muscle attached to Os Magnum : Flexor pollicis brevis. The os unciforme is the second largest bone of the carpus, and occupies its inferior internal part; it is easily recognized by its hook-like process, whence it has re- ceived its name; it has three articular surfaces, two non- articular, The hook-like process, turned forwards and outwards, concave externally, convex internally, gives attachment to the anterior annular ligament of the carpus, and some of the muscles of the little finger. The unci- form bone articulates with five bones; the lunar, the os magnum, the cuneiform, and the fourth and fifth meta- carpal bones. Muscles attached to the Unciform Bone : Flexor brevis minimi digité. Adductor minimi digiti. The bones of the carpus belong to the class irregular bones ; their structure therefore is spongy, covered with a thin layer of compact tissue ; hence their great liability to caries; they are developed from a single point of ossifi- eation, with the exception of the unciform, which pos- sesses two; the os pisiforme is not ossified till approach- ing puberty; it might be described as a sesamoid bone, being developed in the tendon of the flexor carpi ulnaris, as the patella is in the tendon of the rectus. The metacarpal bones are five in number; they belong to the class of long bones, and may be divided each into a superior or carpal extremity, a body or shaft, and an inferior or phalangeal extremity.](https://iiif.wellcomecollection.org/image/b29302535_0101.jp2/full/800%2C/0/default.jpg)
