. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. NIPPLE DEVELOPMENT IN SQUIREEL 127 Moreover, the doubling of the two anterior pairs is only apparent. If we examine sections Fig. 45a. Fig. Fig. 45c. Figs. 45a, 45b, and 45c.—" Sciurus ; Trans- verse Sections (Diagrammatic) showing Succes- sive Stages of Nipple Development. (Beesslau. ) JT, Smaller pectoral nipple primordia shifting medio-ventrally from p, primary-primordia pectoral. Fig. 45b shows separation of pectoral nipple primordia at a later stage. F
. The mammary apparatus of the mammalia : in the light of ontogenesis and phylogenesis . Mammals; Mammary glands. NIPPLE DEVELOPMENT IN SQUIREEL 127 Moreover, the doubling of the two anterior pairs is only apparent. If we examine sections Fig. 45a. Fig. Fig. 45c. Figs. 45a, 45b, and 45c.—" Sciurus ; Trans- verse Sections (Diagrammatic) showing Succes- sive Stages of Nipple Development. (Beesslau. ) JT, Smaller pectoral nipple primordia shifting medio-ventrally from p, primary-primordia pectoral. Fig. 45b shows separation of pectoral nipple primordia at a later stage. Fig. 45c shows a still later stage with p, the larger pectoral nipple primordium, and ir, the smaller, as elongated epithelial cylinder growing into cutis. of successive stages (Figs. 45a, 45b, and 45c), we see that at first the smaller primordia it and 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 Bresslau, E. (Ernst), 1877-; Hill, James Peter, 1873-1954. London : Methuen & Co.
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Keywords: ., bookcentury1900, bookdecade1920, booksu, booksubjectmammaryglands
