Contributions from the Department of Anatomy, Nide 7University of Minnesota., 1922 |
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absolute weight albino albino rat alveoli Anat Anatomy animals appear average weight birth weight body length body weight brain calculated cells cent centers central nervous system cerebellum cerebral hemispheres changes chronic inanition colostrum corpuscles crown-heel length curve decrease diameter ducts ectoderm embryo epiphysis epithelial female fetal month fetus figures formula grams growth Hatai hibernation hypophysis increase intestines Jackson 15 larvae later liver loss lungs males mammary gland newborn rat nipples normal newborn nuclei observed organs ossification ovum pancreas pars intermedia percentage increment period physiologic capacity pituitary portion posterior postnatal pregnancy prenatal controls rats underfed refed refeeding relative weight respectively computed shown shows skeleton spermatogonia spinal cord spleen stain Stewart stomach structure suprarenals tenth rib test rats testis thirst thoracic three weeks thymus thyroid tissue tubules underfeeding various vermis cerebelli visceral group volume weeks of age young rats
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Sivu 35 - Vertebrates, the layer of columnar ciliated epithelium, backed by neuroglla, which lines the central canal of the spinal cord and the ventricles of the brain.
Sivu 22 - While each part passes through its own cycle of changes these changes as a whole tend to follow what is known as the law of developmental direction; for it is generally found that development (including growth and differentiation) in the long axis of the body appears first in the head region of the body and progresses toward the tail region, and similarly development in the transverse plane begins in the mid-dorsal region and progresses lateroventrally (in the limbs proximodistally).
Sivu 595 - In lactating females suckling more than five young, the period of gestation is always prolonged, and may be prolonged to a maximum of 34 days. Daniel's studies on the white mouse lead him to formulate the following law: "The period of gestation in lactating mothers varies directly with the young suckled." Such exact relation between the number of young suckled and the extent of the prolongation of the gestation period was not observed by King for the albino rat.
Sivu 595 - The period of gestation is always prolonged when a female is suckling six or more young. In these cases the number of young in the second litter seems to have less influence on the length of the gestation period than has the number of young suckled; but if both litters are very large the gestation period may be extended to 34 days.
Sivu 558 - On the weight increments of premature Infants as compared with those of fetuses of the same gestation age and those of full-term children.
Sivu 636 - May 31. 1913 On the weights of the abdominal and the thoracic viscera, the sex glands, ductless glands and the eyeballs of the albino rat (Mus norvegicus albinus) according to body weight. Am.
Sivu 8 - Some Deformities of the Chest in the Light of Its Ancestry and Growth, JAMA 29:512, 1897.
Sivu 5 - The Rat. Reference tables and data for the albino rat and the Norway rat.