Hooper, Robert [Hrsg.]: The Anatomist's Vade-Mecum: Containing The Anatomy, Physiology, Morbid Appearances, &c. Of The Human Body ; The Art of making Anatomical Preparations, &c. To which are added Anatomical, Physiological, Medical, And Surgical Examinations For Students (London, 1811)

( m )

CARPUS.

The carpus, or wrist, is situated between the fore arm and
metacarpus. It is composed of eight bones, which lie close to
one another in a double row, one of which is superior, the
other inferior. In the superior row, are (from the thumb to
the little finger), os scaphoides, or navicularc; os lunare; os
cuneiforme ; and os orbiculare, or sub-rotundu>n. In the lower
row are, os trapezium; os trapezoids; os magnum, and os
unciforme.

All of these bones bear some resemblance to the names
given to them ; they are extremely difficult, nevertheless, to
be known when separated : in general they may he said to
have six unequal surfaces each: supposing, therefore, the
hand to be laid flat on a table, with the palm downwards, the
upper surface of each carpal bone, will be that which is to-
wards the back of the hand ; the posterior surface will be
that which is nearest to the bones of the fore-arm, and the
anterior surface that which is placed towards the fingers ; of
the two lateral surfaces, the exte;nal one will be that which
is nearest to the little finger, and the internal'one feat which
is nearest to the thumb. The os scaphoides has an oval cavity
at its anterior and inner surface, the os lunare has its outer
edge in the form of a crescent; the os cuneiforme has a con-
vexity for the articulation of the os pisiforme; the os pisi-
forme is the smallest bone of the wrist; the os trapezium has
four unequal edges at its posterior surface ; the os trapezoids
is like the former bone, but smaller ; the os magnum is the
largest bone of the wrist- the os unciforme has its unciform
process.

Connexion. The bones of the carpus are. muted to those
ef the fore-arm and metacarpus by arthrodia., A capsular H-.