Wiley
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Morphological studies on the reproductive organs of blinded male hamsters and the effects of pinealectomy or superior cervical ganglionectomyAbstract The testes, seminal vesicles and coagulating glands of hamsters subjected to bilateral optic enucleation (blinding) involuted within 6–8 weeks. During the first several weeks after blinding there was relatively little change in the weights of the reproductive organs, however, between 4–6 weeks the weights of these organs declined precipitously. Finally, the... ...
Wiley - Tập 160 Số 1 - Trang 13-23 - 1968
Brain expansion in the chick embryo initiated by experimentally produced occlusion of the spinal neurocoelAbstract The brain expands in the early chick embryo from pressure generated by accumulation of cerebrospinal fluid (CSF) in a closed neural tube. The sealing of the neural tube occurs as the result of occlusion of the spinal neurocoel rostral to and before closure of the posterior neuropore. We have previously demonstrated the dependence of normal brain expansion u... ...
Wiley - Tập 268 Số 2 - Trang 147-159 - 2002
Secretory activity in the floor plate neuroepithelium of the developing human spinal cord: Morphological evidenceAbstract The developing spinal cord at the cervical and thoracic levels in 14 human embryos ranging from Carnegie stages 14 to 20 were examined with the electron microscope. The floor plate‐forming cells contained numerous cytoplasmic organelles, such as rough endoplasmic reticulum (ER), Golgi apparatus, and well‐developed junctional complexes between the adjacent c... ...
Wiley - Tập 222 Số 2 - Trang 185-190 - 1988
Scanning electron microscope study of the developing microvasculature in the postnatal rat lungAbstract During postnatal growth the parenchymal septa of rat lung undergo an impressive restructuring. While immature septa are thick and contain two capillary layers, mature septa are slender and contain a single microvascular network. Using the Mercox® casting technique and scanning electron microscopy, we investigated the mode and the timing... ...
Wiley - Tập 216 Số 2 - Trang 154-164 - 1986
A novel mechanism of capillary growth in the rat pulmonary microcirculationAbstract Postnatally, the rat lung parenchyma undergoes impressive growth. Within four months of birth, lung volume and alveolar and capillary surface areas increase over 20‐fold and capillary volume 35‐fold. Investigation of methacrylate casts of the pulmonary microvasculature revealed that, with age, lung capillaries were not only growing in surface and volume but... ...
Wiley - Tập 228 Số 1 - Trang 35-45 - 1990
The prenatal development of the mouse eyeAbstract The development of the eye has been studied in mouse embryos from the ninth day through the nineteenth day of gestation. The tissue was fixed in aldehydes, post‐osmicated and embedded in Epon. The entire eye was sectioned and studied under the light microscope. The development of the eye in the prenatal period is described as having seven stages. In the ...
Wiley - Tập 168 Số 1 - Trang 105-125 - 1970
Hormonal determinants of the development of masculine and feminine behavior in male and female ratsAbstract To investigate the role of gonadal hormones during the postnatal period on the development of masculine and feminine behavior 129 male and female rats were hormonally manipulated at birth. Within 24 hours of birth male and female rats were: (a) sham operated, (b) gonadectomized, (c) gonadectomized and given testosterone, or (d) gonadectomized and given estr... ...
Wiley - Tập 157 Số 2 - Trang 173-180 - 1967
The human cadaver in the age of biomedical informaticsAbstract Major national and international critiques of the medical curriculum in the 1980s noted the following significant flaws: (1) over‐reliance on learning by rote memory, (2) insufficient exercise in analysis and synthesis/conceptualization, and (3) failure to connect the basic and clinical aspects of training. It was argued that the invention of computers and ... ...
Wiley - Tập 269 Số 1 - Trang 20-32 - 2002
Immunofluorescent localization of desmin and vimentin in developing cardiac muscle of Syrian hamsterAbstract The distributions of desmin and vimentin were examined in frozen sections of cardiac muscle from embryonic, newborn, and adult Syrian hamster by using immunofluorescent methods. Frozen sections of newborn and adult skeletal muscle were used for comparison. Cardiac myocytes from day 9 in utero embryos already show a clear association of desmin with the sarco... ...
Wiley - Tập 223 Số 4 - Trang 406-413 - 1989
Spermatogenesis in a sex‐reversed female and in normal males of the domestic fowl, gallus domesticus
Wiley - Tập 70 Số 2 - Trang 155-189 - 1938
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