منابع مشابه
Physiological changes in pregnancy
Physiological changes occur in pregnancy to nurture the developing foetus and prepare the mother for labour and delivery. Some of these changes influence normal biochemical values while others may mimic symptoms of medical disease. It is important to differentiate between normal physiological changes and disease pathology. This review highlights the important changes that take place during norm...
متن کاملPhysiological changes in ageing muscles.
Physiological studies have been made of extensor digitorum brevis muscles in 28 healthy subjects aged between 60 and 96. Within this elderly population there was evidence of muscle wasting and weakness. These changes were shown to result from a loss of functioning motor units. The surviving motor units were often enlarged and tended to have relatively slow twitches. In some subjects the maximum...
متن کاملFrequently observed parasites in pet reptiles’ feces in Tehran
Backgrounds Many wild-caught reptiles harbor some kind of parasites. Captivity with negative effect of poor sanitary and husbandry management may lead to clinical disease. The increasing trend in keeping non-native reptile species in the last decade emerged a need for the specification of reptile parasites and their hosts. Objectives The study aims to gain data on intestinal parasites of repti...
متن کاملThe physiological and evolutionary significance of cardiovascular shunting patterns in reptiles.
The morphology of the reptilian heart results in the mixing of oxygenated and deoxygenated blood (cardiac shunts). In birds and mammals cardiac shunts are detrimental, but in reptiles this condition is often considered a derived trait, conveying important physiological functions and favored by natural selection. Alternative views are advanced suggesting that, in reptiles, cardiac shunts represe...
متن کاملColor Changes in Fundulus with Special Reference to the Color Changes of the Iridosomes.
Roy. Soc., 70, 313 (1902). 3 Ives, H. E., Phil. Mag., 24 (6), 352 (1912). 4Allen, F., J. Opt. Soc. Amer., 13, 383 (1926). 6 Lythgoe, R. J., and Tansley, K., Med. Res. Counc., Spec. Rep. Ser., No. 134, London (1929). 6 Granit, R., and Harper, P., Am. J. Physiol., 95, 211 (1930). Allen, F., Phil. Mag., 38, 81 (1919). 8 Dieter, W., Arch. f. Ophthal., 113, 141 (1924). 9 Hyde, E. P., Forsythe, W. E....
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ژورنال
عنوان ژورنال: American Zoologist
سال: 1969
ISSN: 0003-1569
DOI: 10.1093/icb/9.2.489