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The mesothoracic pleuroalar muscle of the migratory locust, Locusta migratoria L. (muscle 85, following Snodgrass [1]), which runs from the pleural ridge to the 3rd axillary sclerite in the forewing hinge, has for a long time a been regarded as the "wing flexor" muscle. However, from anatomical stu10 ms dies on the forewing articulation, Pfau and Nachtigall(More)
In nuclei of the inactive thyroid gland of Microtus agrestis the constitutive heterochromatin is heteropycnotic and forms large chromocenters. After specific activation of the thyroid gland with thyroid stimulating hormone (TSH), or with the thyrostatic methylthiouracil (MTU), an enlargement of cells and nuclei, a high mitotic activity and a despiralization(More)
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