An introduction to the study of embryology / by Alfred C. Haddon.

  • Alfred Cort Haddon
Date:
1887
Catalogue details

Licence: Public Domain Mark

Credit: An introduction to the study of embryology / by Alfred C. Haddon. Source: Wellcome Collection.

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    CHAPTER VI. Organs Derived from the Hypoblast . . . 168-18 8 Digestive Organs of Invertebrates.—Mesenteron of Acoelo- mata and of Coelomata, pp. 168-170. The liver of Invertebrates, pp. 170, 171. Mesenteron of Chordata.—Formation of mesenteron in telolecithal ova, pp. 171, 172. Pharynx and endostyle ; oesophagus, p. 172. Stomach, liver, and gall-bladder, p. 173. Pancreas, p. 174. Intestine, pp. 174, 176. Spiral valve, pyloric caeca, p. 175. Caecum, p. 176. Endodermal Muscles.—Endodermal muscles in Coelenterata, p. 176. Respiratory Organs.—Intestinal respiration of Invertebrates, p. 177. Pharynx of Chordata; Balanoglossus, p. 177. Tunicates, Amphioxus, p. 178. Ichthyopsida; bran- chial chamber, pp. 178, 179. Intestinal respiration in Teleosts, p. 180. Air-bladder, its hydrostatic, respira- tory, and auditory functions, pp. 180, 181. Lungs, pp. 181, 182. Tongue.—Development of tongue from pharynx 3 taste bulbs, pp. 182, 183. Thyroid Body and Thymus Gland, pp. 183-185. Gustatory Organ of Amphioxus, p. 185. Excretory Organs.—Urinary tubes of Amphipods, p. 186. Skeletal Structures.—Notochord, Hemicordata, Urochor- data, Cephalochordata, p. 186. Vertebrata, pp. 186- 188. Sub-notochordal rod; significance of the Noto- chord, p. 188. Urinary Bladder, p. 188. CHAPTER YIL Organs Derived from the Mesoblast . . . 189-264 Indifferent Mesoblast.—The general parenchyma of the body of Sponges, Coelenterates, and Platyhelminths; leucocytes, pp. 189, 190. Dermal Mesoblast.—Derma, p. 190. Muscular System.—Muscles of Invertebrates and Chordata; primary segmentation of mesoblastic somites, pp. 189,191. Dermal Skeletal Structures.—Invertebrates, p. 192.— Chordata.—Dermal scales of Fishes and Reptiles, pp. 192, 193.
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