. A manual of zoology. Zoology. Fig. 31.—Tubular glands (after Toldt). A, glands of Lieberkiihn from the human intestine; A', of the conjunctiva of the eye; B, of the cat's stomach; C, from the medullary pyramids of the dog's kidney; D, from the cortex of the rabbit's Iddnej-. Sexual Epithelium.—The sexual cells may be considered in connec- tion with glandular epithelium. As the secretion of some glands must be expelled from the body, so the sexual cells are elements which must. Fig. 32.—Acinous salivary gland of the aph'd Orthezia cataphracta (after List). In some acini the nuclei and boundar
. A manual of zoology. Zoology. Fig. 31.—Tubular glands (after Toldt). A, glands of Lieberkiihn from the human intestine; A', of the conjunctiva of the eye; B, of the cat's stomach; C, from the medullary pyramids of the dog's kidney; D, from the cortex of the rabbit's Iddnej-. Sexual Epithelium.—The sexual cells may be considered in connec- tion with glandular epithelium. As the secretion of some glands must be expelled from the body, so the sexual cells are elements which must. Fig. 32.—Acinous salivary gland of the aph'd Orthezia cataphracta (after List). In some acini the nuclei and boundaries of the cells are shown. reach the exterior in order to perform their function. Just as the gland-cells are usually scattered among ordinary epithelial cells, so the sexual cells almost invariably lie imbedded in epithelium of the skin. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
