. Comparative anatomy. Anatomy, Comparative. THE SKELETAL SYSTEM 255 Development of the Upper Limb. The anlagen of the arms extend through five myotomes of the cervical region. During the second month indications of an appendicular skeleton appear as axial thickenings of the mesenchyme. In this compact mesenchyme, as early as the sixth week cartilage forms between the cell masses which are to become the muscles on the upper and lower sides of the limb. By the end of the seventh week the entire cartilaginous matrix of the skeleton of the arm is formed except GROWTH DISC GROWTH DISC. DIAPHYSIS—^
. Comparative anatomy. Anatomy, Comparative. THE SKELETAL SYSTEM 255 Development of the Upper Limb. The anlagen of the arms extend through five myotomes of the cervical region. During the second month indications of an appendicular skeleton appear as axial thickenings of the mesenchyme. In this compact mesenchyme, as early as the sixth week cartilage forms between the cell masses which are to become the muscles on the upper and lower sides of the limb. By the end of the seventh week the entire cartilaginous matrix of the skeleton of the arm is formed except GROWTH DISC GROWTH DISC. DIAPHYSIS—^ wP perichondrialF "^ BONE ^""^ CARTILAGE. 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son
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Keywords: ., bookcentury1900, bookpublisherphi, booksubjectanatomycomparative
