..., the number or volume of left ventricular cardiomyocytes does not compensate for the higher heart rate and specific metabolic rate of small mammals although a higher mitochondrial and lower myofibrillar volume per cardiomyocyte are present. As the stereological methods to estimate the number of objects...

... is explained. Anatomic diffusion factor Gill plasticity Pangasius Scaling Stereology Morphometric analyses have demonstrated that the gill SA in water-breathing fish scale allometrically with body mass with a median exponent of 0.8, ranging from 0.6 to 1.0 (references listed in Table 4...

... in-pouch growth followed by a decrease in cardiac development and perfusion requirements during post-pouch growth. Heart Laplace Marsupial Ontogeny Remodelling Stereology The four-chambered mammalian heart completely separates the high-pressure systemic system that supplies oxygenated...

... ([email protected]) 24 3 2012 16 4 2012 © 2012. 2012 anatomical diffusing capacity insect locust mitochondria stereology symmorphosis tracheal system Weibel and Taylor's theory of symmorphosis posits that the oxygen delivery steps of the respiratory system...

... to be made of volume density, surface area density and thickness using the following stereological equations (Cruz-Orive and Weibel, 1990 ; Howard and Reed, 1998 ; Mayhew, 1991) appropriate for vertical sections (Baddeley et al., 1986). The average time to process each locust from initial fixation...

... achieved for the larval Drosophila midgut(Shanbhag and Tripathi, 2005),allowing stereological analysis of epithelial geometry simultaneously with physiological studies. Fig. 1 shows the basic organization of the midgut into at least three separate parts:an anterior near-neutral part, a strongly acidic...

[email protected]) 10 3 2008 © The Company of Biologists Limited 2008 2008 osmoregulation reptile tissue respirometry stereology transmission electron microscopy The estuarine crocodile, Crocodylus porosus , displays broad euryhaline capabilities, with animals observed in waters...

.... A predominance of microfollicles with less colloid content and dilated blood capillaries was found in the EMF group. Stereological counting showed a statistically significant increase of the volume density of follicular epithelium, interfollicular tissue and blood capillaries as well as the thyroid activation...

... for application of the stereological optical fractionator method in this species. The postnatal development of neocortical neurons and glial cells from the experimental Göttingen minipig was compared with the postnatal development of neocortical neurons in the domestic pig. A significant postnatal development...

... derived from stereological analysis of electron micrographs, mean fibre P O 2 was calculated on the basis of temperature-corrected rates of mitochondrial respiration and oxygen diffusion. The mean muscle fibre diameter (MFD) among Antarctic notothenioids was in the range 17–61 μm and mitochondrial volume...

... surrounding the nephron were quantified using stereology. Tissue processed in paraffin wax had a mean shrinkage of 17.7 % compared with 10.1 % in JB4 resin. Absolute volumes of the kidneys and nephrons were compared statistically between tissue processing methods and among seasons. Absolute volumes...

... in Antarctic fishes . Physiol. Zool . (in press) . Cruz-Orive , L. M. and Weibel , E. R. (1981). Sampling designs for stereology . J. Microsc . 122 , 235 – 257 . 10.1111/j.1365-2818.1981.tb01265.x Devries , A. L. and Eastman , J. T. (1981). Physiology and ecology...