The American Journal of Anatomy (Volume 20 ) (Paperback)

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1916. Excerpt: ... THE LACHRYMAL GLAND JOHN SUNDWALL From the Hull Anatomical Laboratory, University of Chicago and the Department of Anatomy, the University of Kansas TWENTY FIGURES CONTENTS I. Introduction 148 II. Gross characteristics 152 Gross structure and relations 152 Vascular supply 153 Nerves 153 Ductuli excretorii 153 III. Supporting tissue 155 Capsule 155 The interlobular septa 156 The intralobular septa 157 Elastic fibres 157 Peritubular connective tissue, etc 158 Plasma cells 161 IV. Duct system and tubules 162 Injection-corrosion specimens of duct system 163 Vital staining 166 Histological structure of ducts and tubules: Main ducts 167 Primary ducts 169 Interlobular ducts 171 Intralobular ducts 173 Cement lines 174 Intercalary ducts 175 Tubules 179 V. Secretion granules 180 Serous cells 180 Mucous cells 181 Similarities of mucous and serous cells 182 Granules in lachrymal gland: In fresh tissue 184 In fixed and stained preparations 188 Discussion of Granules 193 147 THE AMERICAN JOURNAL OF ANATOMY, VOL. 20, NO. 2 SEPTEMBER, 1916. The investigations on which this paper is based began several years ago ('05) when it was first learned that lachrymal glands as well as those of the nictitating membrane, plica semilunaris, of many animals stain with certain dyes which are generally regarded as specific to mucous secreting cells. It was found that these glands of the ox, pig, sheep, goat, and horse stained readily with either mucicarmin or muchaematein, while those of the cat, dog, rabbit, and guinea pig did not. Preparations of the lachrymal glands of these animals were shown at the twenty-second session of the Association of American Anatomists held at the University of Wisconsin, and a preliminary report on the staining reactions of the lachrymal gland tissue fou...