. Electro-physiology . I ;|I||1^,W;/" -:;- \%fltPK ^^ft^^%^^- FIG. 159.—Nerve-cords from the costo-cutaneous muscle of a frog injected with methylene blue, showing numerous divisions and Ranvier's crosses. (Ko'Hiker.) ing differently with methylene blue. If these are followed down to the periphery, it will be found that both axis-cylinders divide at exactly the same point; this is repeated at each new bifur- cation, even to the finest branches, so that the number of rami- fications is conspicuously increased (Fig. 150). Both in the central organ and at the periphery, the ratio of magnitud

---

. Electro-physiology . I ;|I||1^,W;/" -:;- \%fltPK ^^ft^^%^^- FIG. 159.—Nerve-cords from the costo-cutaneous muscle of a frog injected with methylene blue, showing numerous divisions and Ranvier's crosses. (Ko'Hiker.) ing differently with methylene blue. If these are followed down to the periphery, it will be found that both axis-cylinders divide at exactly the same point; this is repeated at each new bifur- cation, even to the finest branches, so that the number of rami- fications is conspicuously increased (Fig. 150). Both in the central organ and at the periphery, the ratio of magnitude between trunk and branches is remarkable. The dichotomous

---

Size: 2650px × 1886px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan