. The anatomical record. Anatomy; Anatomy. 5 6 7 8 Fig. 5 Lower part of a heart from an embryo 12 mm. long. There is a slight cleft in the apex. The general course of the fibers on the posterior side is shown. Fig. 6 Posterior view of the heart from an embryo 14 mm. long (No. 360). Normal. Fig. 7 Posterior view of the heart, which is normal in form, from an embryo 18 mm. long (No. 90 b). Fig. 8 Posterior view of a heart with a cleft apex from an embryo 19 mm. long (No. 283 b). bulbo-ventricular 'groove in front. This is the sino-spiral muscle sheet. Another sheet arises from the sinus in front
. The anatomical record. Anatomy; Anatomy. 5 6 7 8 Fig. 5 Lower part of a heart from an embryo 12 mm. long. There is a slight cleft in the apex. The general course of the fibers on the posterior side is shown. Fig. 6 Posterior view of the heart from an embryo 14 mm. long (No. 360). Normal. Fig. 7 Posterior view of the heart, which is normal in form, from an embryo 18 mm. long (No. 90 b). Fig. 8 Posterior view of a heart with a cleft apex from an embryo 19 mm. long (No. 283 b). bulbo-ventricular 'groove in front. This is the sino-spiral muscle sheet. Another sheet arises from the sinus in front near the bulb, encircles the left ventricle and enters the septum behind (fig. 11). This is the bulbo-spiral band which may be outUned as soon as the inferior septum of the ventrical begins to develop from below and behind. In the dissection of somewhat older hearts the sino- spiral band is the easiest to isolate, and in its passage into the left ventricle it divides into two strands, one of which passes to the membranous septum on the right side of the septum and the other is lost in the trabecular system of the left ventricle. Be- tween these two strands the circular strands (bulbo-spiral) of. 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 Bardeen, Charles Russell, 1871-1935, ed; Boyden, Edward A. (Edward Allen), 1886-1976; Bremer, John Lewis, 1874- ed; Hardesty, Irving, b. 1866, ed; American Association of Anatomists; American Society of Zoologists; Wistar Institute of Anatomy and Biology. [New York, etc. ] A. R. Liss [etc. ]
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectanatomy, bookyear1906
