منابع مشابه
Physiological Ontogeny
In these experiments we have shown that, with the technique adopted, differences in behavior are exhibited by fragments of the heart taken from different localities. The different localities behave in a more or less uniform manner. The pace-making function, for instance, is found at first throughout the cardiac tube but later it is restricted and comes to reside in a special small area at the b...
متن کاملI-1: Spermatogonial Ontogeny in Mice
Background:Spermatogenesis is maintained by a pool of the spermatogonia. The group formed by As, Apr and Aal is known as undifferentiated type a spermatogonia (Aund). The Aal spermatogonia will differentiate, with no mitotic division, to the differentiating type A1 spermatogonia. The type A1 spermatogonia undergo 6 successive mitotic divisions to yield A2, A3, A4, intermediate-type (In), and ty...
متن کاملPhysiological Ontogeny. A. Chicken Embryos. Ix . ~ Iodine Reaction for the Quantitative Determination
The importance of the sulphydryl compound, glutathione, as one of the thermostable components of the oxidation-reduction system of living cells has been established by Sir F. G. Hopkins ( i) and his assoda t e s in the Biochemical Labora tory , Cambridge, and recent ly a me thod for the quant i ta t ive estimation o f S H groups in tissue has been proposed by Tunnicliffe (2). In a s tudy of the...
متن کاملThe ontogeny of physiological response to light intensity in early stage spiny lobster (Jasus edwardsii) larvae.
Early stage phyllosoma larvae of the spiny rock lobster Jasus edwardsii were examined for swimming speed, feeding, oxygen consumption and nitrogen excretion as instantaneous performance indicators when exposed to different irradiance levels. Swimming speed was measured in recently hatched Stage I larvae while all other parameters were measured in larvae from hatch to mid-Stage V. The swimming s...
متن کاملPhysiological Ontogeny. A. Chicken Embryos. Ix . ~ Iodine Reaction for the Quantitative Determination
The importance of the sulphydryl compound, glutathione, as one of the thermostable components of the oxidation-reduction system of living cells has been established by Sir F. G. Hopkins ( i) and his assoda t e s in the Biochemical Labora tory , Cambridge, and recent ly a me thod for the quant i ta t ive estimation o f S H groups in tissue has been proposed by Tunnicliffe (2). In a s tudy of the...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 1926
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.9.5.603