. Advanced biology. Biology; Physiology; Reproduction. 192 DUCTLESS GLANDS. are produced. Some of the mucous membrane of the small in- testine was scraped off, treated with acid, and injected into the ., blood. Immediately, pan- creatic juice flowed. The ^.^mectl body ^^""^ ^^ thought to have r(7^xj--^-\^'ta^ been effected by the stim- ulation of the diojestive .partcthyK)i^S gl^^^^s by secretin which *J^- ---"fhyroxoL was probably formed from % V-^ -'.t'KyTriTXS ^1^ inactive hormone in the mucous membrane. The internal secretions llV^T* are of great importance in .
. Advanced biology. Biology; Physiology; Reproduction. 192 DUCTLESS GLANDS. are produced. Some of the mucous membrane of the small in- testine was scraped off, treated with acid, and injected into the ., blood. Immediately, pan- creatic juice flowed. The ^.^mectl body ^^""^ ^^ thought to have r(7^xj--^-\^'ta^ been effected by the stim- ulation of the diojestive .partcthyK)i^S gl^^^^s by secretin which *J^- ---"fhyroxoL was probably formed from % V-^ -'.t'KyTriTXS ^1^ inactive hormone in the mucous membrane. The internal secretions llV^T* are of great importance in .» bringing about coordina- jspleen. ,. ,. ' tion among the various • /-—-OCCirdnatlS organs. It is thought by '^ some investigators that Most of the ductless glands of man are indicated in i • i e •• their approximate positions. CVCry kind ot tlSSUC may give rise to individual sub- stances or principles which pass directly into the blood, and affect the general working or metabolism of the body. Not many studies have been published ^concerning tissue secretion. To date, in- vestigations have been confined largely to the hormones of the ductless glands. It is difficult to secure the internal glandular secretions of human beings in a pure state. Therefore, our knowledge concerning them is based primarily on experimentation on lower animals, chemical examination of the glands and their extracts, and of the blood near the glands, observations of the effects resulting from disturbances of the ductless glands, and effect of direct injections of extracted or synthesized internal secretions. The thyroid. The thyroid is one of the ductless glands. It is situated in the neck and consists of two divisions or lobes, one on. 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 Wheat, Frank Merrill; Fitzpatric
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Keywords: ., bookcentury1900, bookdecade1920, booksubje, booksubjectphysiology
