"a, head, antennae, &c; b, pharynx; c, crop; d, gizzard; e, chyle-forming stomach; f, biliary vessels; g, small intestine; h, secreting organs" — Goodrich, 1859

Digestive Apparatus of an Insect

"a, head, antennae, &c; b, pharynx; c, crop; d, gizzard; e, chyle-forming stomach; f, biliary vessels;…

"<em>A</em>, a fold of peritoneum; <em>B</em>, lacteals and lymphatic glands; <em>C</em>, veins of intestines; <em>R.C.,</em>, receptacle of the chyle (receptaculum chyli); <em>P.V.</em>, portal vein; <em>H.V.</em>, hepatic veins; <em>S.V.C.</em>, superior vena cava; <em>R.A.</em>, right auricle of the heart; <em>I.V.C.</em>, inferior vena cava." &mdash; Blaisedell, 1904

Intestinal absorption

"A, a fold of peritoneum; B, lacteals and lymphatic glands; C, veins of intestines;…

"Human Thoracic Duct and Azygous Veins. a, receptacle of the chyle; b, trunk of the thoracic duct, opening at c into root of left innominate vein at junction of f, left jugular, and g, left subclavian vein; e, right innominate vein; d, d, d, several thoracic and lumbar lymphatic glands; h, h, a short portion of the esophagus. Two azygous veins run parallel with and on each side of the duct, until the left crosses behind the duct to join the right. The structures represented rest nearly upon the back-bone." -Whitney, 1911

Thoracic Duct

"Human Thoracic Duct and Azygous Veins. a, receptacle of the chyle; b, trunk of the thoracic duct, opening…

"The lacteals conduct the chyle from the intestines into numerous glands nearby, called the mesenteries, from which a fewer number of lacteals lead the chyle into one large tube in front of the spinal column, called the thoracic duct." &mdash;Brown, 1884

Thoracic duct and lacteals

"The lacteals conduct the chyle from the intestines into numerous glands nearby, called the mesenteries,…