Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 26 On the Metacarpus

The spaces between the metacarpals

In the middle of their course along the length of the metacarpus, since the bones are much thinner than their epiphyses, they are separated from each other and stand apart by a noticeable interval (S in figs. 1 and 2, ch. 25). This is for an important purpose, for in any of the three intervals which the four metacarpal bones form, two muscles are located [m. interosseus palmaris et m. interosseus dorsalis] (see under D in the 8th table of muscles, and m in the 12th) 27 of the eight which flex the first bone of the four fingers. Just as two of those muscles go to each digit, so also two are extended along each metacarpal bone, and six are gathered in the three spaces, while a seventh [m. interosseus dorsalis primus] is run on the inner side of the metacarpal bone that supports the index finger, and an eighth [ m. opponens digiti minimi?] is directed along the outside of the bone that precedes the little finger. 28



Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 26 On the Metacarpus