. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. V 5sec ^ <2. i Isec FIGURE 7. Electrical activity during spasm. A, recordings between two marginal ganglia showing the burst; B (top view of a strobila), electrical records between a marginal ganglion (upper record) and a radial muscle (lower record) ; C, (top view of a strobila) showing records of the electrical activity before a spasm from the manubrium (upper record) and from a radial muscle (lower record). The arrow indicates the duration of the spasm. Dots indicate potentials associated with an observed beating
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. V 5sec ^ <2. i Isec FIGURE 7. Electrical activity during spasm. A, recordings between two marginal ganglia showing the burst; B (top view of a strobila), electrical records between a marginal ganglion (upper record) and a radial muscle (lower record) ; C, (top view of a strobila) showing records of the electrical activity before a spasm from the manubrium (upper record) and from a radial muscle (lower record). The arrow indicates the duration of the spasm. Dots indicate potentials associated with an observed beating contraction. The star indicates a beating ephyral bud. Following the appearance of conduction between marginal ganglia, conduction of MGPs could be detected in other parts of the beating ephyra. MGPs were never detected in the exumbrellar surface (Fig. 5A, B) but were routinely recorded from the subumbrellar surface in the areas of the radial and circular musculature (Fig. 5B, Fig. 6C, D). Occasionally, potentials which were associated with the beat occurred in the manubrium but this was unusual (Fig. 6D). MGPs from a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
Size: 3015px × 829px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
