... in Testudines, we studied the hearts of loggerhead sea turtles, Caretta caretta ( n =7), using immunohistochemistry and histology. Surprisingly, we found no evidence of prominent atrial smooth muscle in C. caretta . However, smooth muscle was readily identified in the sinus venosus. Our results suggest...

... as juveniles and adults. Alongside this change in habitat, some species also change lifestyles and become nocturnal. However, it is not fully understood how the visual systems of nocturnal reef fishes develop and adapt to these significant ecological shifts over their lives. Therefore, we used a histological...

... sister lineages: Zearchaea has ultra-fast cheliceral strikes and Aotearoa , based on external morphology of the clypeus, is hypothesized to have slower strikes. Using high-speed videography, I first gathered kinematic data on each taxon. Then, using histology and data from micro-computed tomography...

... to cause a trade-off between energy conservation and recovery. Healing Heterothermy Histology Lipid profiles Myotis lucifugus Wildlife disease Mean body mass at capture was 7.1±0.08 g and declined to 5.7±0.09 g during the 2 days of transport to the University of Winnipeg. However...

... and gland mucous cells – arise. Slime glands were electro-stimulated to exhaust their slime stores, left to refill for set periods of time, and harvested for histological and immunohistochemical examination. Whole slime glands, gland thread cell morphometrics and slime cell proportions were examined over...

... the hearing of the toads and used micro-computed tomography and histology to relate the development of ear structures to hearing ability. We found a large (14–27 dB) increase in hearing sensitivity from 900 to 2500 Hz over the course of ear development. Thickening of the tympanic annulus cartilage and full...

...: Olfactory and non-sensory epithelia in the nose tend to be located in the path of olfactory and respiratory airflow, respectively. Some ethmoturbinals are shown to function in respiration in short-snouted felids. Airflow Ethmoturbinal Histology Maxilloturbinal Respiratory physiology...

... for amphibians that hibernate on land. Accordingly, in the Andean toad( Bufo spinulosus ), we investigated the effect of short-term fasting and hibernation on the hydrolytic activity of digestive enzymes, histology of the small intestine, gross morphology of digestive and other internal organs and standard...

...). Histological examination revealed that many ZF cells were deprived of lipid droplets. Fibrosis was observed in all parts of the adrenal gland, both cortex and medulla, of heat stressed animals. Mitotic figures were absent in cortical cells after heat exposure, but there were no differences in ZF and zona...

... in Lillies-fixative and processed for histological examination by light microscopy. After 24 h, embryos were dehydrated through a series of graded ethanol (50-99%), cleared in xylene, and embedded in paraffin. Sections (5 μm) were cut so that transverse sections of the gonads were achieved. The sections were...

..., Tetrabranchiata). Cell Tissue Res. 293 , 327 -336. Westermann, B. and Schipp, R. ( 1998b ). Morphology and histology of the digestive tract of Nautilus pompilius and Nautilus macromphalus (Cephalopoda, Tetrabranchiata). Zoomorphology 117 , 237 -245. Westermann, B. and Schipp, R. ( 1999...

... 26 2 2001 © 2001 by Company of Biologists 2001 kidney stereology histology JB4 house sparrow Passer domesticus Kidney morphology varies among different classes of vertebrates. The kidneys of birds and mammals, unlike those of other vertebrates, contain both a cortex...

.... In histological sections, we observed the position and arrangement of the ciliary muscles, confirming earlier anatomical descriptions, and developed a model of how accommodation could be achieved. * Author for correspondence (e-mail: hch2@cornell.edu ) 25 08 1999 28 10 1999 © 1999...

..., but was sparse or absent in the treated fish. Histological examination using light microscopy revealed severe effects of nonylphenol as well as of oestradiol treatment on testicular structure. Control fish had seminiferous lobules containing spermatogenic cysts and only a few spermatozoa (May) or had the walls...

... histology Homarus americanus The open circulatory system of decapod crustaceans consists of a heart that pumps hemolymph into seven parallel arteries (see review by McLaughlin, 1983 ). These vessels are the unpaired anterior median artery (AMA), sternal artery (SA) and dorsal abdominal artery...