A text-book on diseases of the ear, nose and throat . verse the basement mem-brane are the basal canals. The dark enclosed bodies are thenuclei of leucocytes, which can be seen in the epithelium aswell as beneath it. PLATE VII. A section through the mucosa and bone on the inner surface of the lower the left the divided lumina of empty mucous glands are visible ; to the rightmucous glands with efferent duct. This and the glands are filled with epithelium on the surface shows the cilia. In the upper portion of the mucosathe ascending branches of arteries can be seen ; i
A text-book on diseases of the ear, nose and throat . verse the basement mem-brane are the basal canals. The dark enclosed bodies are thenuclei of leucocytes, which can be seen in the epithelium aswell as beneath it. PLATE VII. A section through the mucosa and bone on the inner surface of the lower the left the divided lumina of empty mucous glands are visible ; to the rightmucous glands with efferent duct. This and the glands are filled with epithelium on the surface shows the cilia. In the upper portion of the mucosathe ascending branches of arteries can be seen ; in the deeper portions the muscularand connective-tissue walls of the lacunar veins are apparent. The elastic fibres canbe observed to take an ascending direction from the periosteum. The adenoid layeris made clear by the large number of nuclei in it. (Heymann.) 1, glandularexcretory duct; 2, epithelium ; 3, basement membrane ; 4, adenoid layer ; 5, peri-osteum, elastic layer ; 6, periosteum, cellular layer ; 7, bone ; 8, bone ; 9, glands. PLATE I
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