. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 40 METACARPUS. Fig. 23. Scaphoid^ is on the radial side, and resembles a boat; has a large ' convex surface superiorly for the ra- dius, and inferiorly a deep concavity for the magnum. It articulates in front with the trapezium and trape- zoides, and on the inside with the lunare. Lunare, of a crescentic figure, has a convex surface superiorly for the radius, and a concavity in front for the magnum, articulates on th
. An analytical compendium of the various branches of medical science, for the use and examination of students. Anatomy; Physiology; Surgery; Obstetrics; Medicine; Materia Medica. 40 METACARPUS. Fig. 23. Scaphoid^ is on the radial side, and resembles a boat; has a large ' convex surface superiorly for the ra- dius, and inferiorly a deep concavity for the magnum. It articulates in front with the trapezium and trape- zoides, and on the inside with the lunare. Lunare, of a crescentic figure, has a convex surface superiorly for the radius, and a concavity in front for the magnum, articulates on the inside with the cuneiform. Cuneiform. — Wedge-shaped, or pyramidal. Inferiorly it articulates with the unciform. Distinguished by a circular facet on its palmar surface for the pisiform. Fisiform.—Pea-like bone, forms one of the prominences in the palm of the hand, has the flexor carpi ulnaris muscle inserted into it, and has but one articular mark, which is for the cuneiform. It is the smallest bone of the carpus. Trapeziwni^ has the most surfaces and angles. The largest articular surface is for the thumb; two others, joining each other, are for the scaphoid and trapezoides. On the palmar surface is a ridge and a deep groove for the flexor carpi radial is tendon. Trapezoides., is the smallest bone of this row—is a four-sided pyramid with its apex towards the palm ; its dorsal surface is the base and inclines inwards. Magnmn.—The largest bone of the wrist. Has a rounded head looking backwards; the body is quadrilateral. Unciform.—Distinguished by a hook-like process resembling a nail on its palmar surface, which gives origin to the flexor brevis minimi METACARPUS Consists of five bones, each having a head, shaft, and base. The head is rounded, articulating with the phalanx; a roughness on each side indicates the attachment of the lateral ligament. The ha&e is the superior extremity, rough, and quadrilateral, having articular marks on the extremity and e
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