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Updated: May 28, 2025
This is surrounded by a sheath of connective tissue, at first merely membranous, later becoming cartilaginous or gristly. Pieces of cartilage extend upward over the spinal marrow, and downward around the great aortic artery, forming the neural and hæmal arches.
Thus in 1852, '53, and '55, leaving out the cholera year '54, the deaths from nerve disorders were respectively to the whole population as 1 in 1149, 1 in 953, and 1 in 941; whilst in 1866, '67, and '68, they were 1 in 505, 1 in 415.7, and 1 in 287.8. Still omitting 1854, the average proportion of neural deaths to the total mortality was, in the five years beginning with 1852, 1 in 26.1.
It was clearly, therefore, coeval with that part of the Parisian series more nearly than with any other. Palaeophis typhoeus, Owen; an Eocene sea-serpent. Bracklesham. a, b. Vertebra, with long neural spine preserved. c. Defensive spine of Ostracion. Dental plates of Myliobates Edwardsi. Bracklesham Bay. According to tables compiled from the best authorities by Mr.
Having tried to picture the neural effect of expression, we may now translate them into psychological terms, asking what service the expressions render to the conscious side of our study. First of all, we note that the expressions help to make the acts and ideas in study habitual. We find ourselves, with each expression, better able to perform such acts as the pronunciation of foreign words.
At the same time, the neural or medullary tube is formed above the chorda, on the dorsal surface, by the closing of the parallel medullary swellings.
When we come to the higher Metazoa, in which the sensory functions and their organs are more advanced, we find a division of labour among the ectodermic cells. Groups of sensitive nerve cells separate from the ordinary epidermic cells; they retire into the more protected tissue of the mesodermic under-skin, and form special neural ganglia there.
There are men, and very great investigators, who would say that your daughter's trances and all phenomena connected therewith were pathologic, explainable on the grounds of some obscure neural derangement. I do not say this is the case, but I do say that if she persists in these practices she will lose control of her mental faculties. I have had a consultation to-day with Dr.
The general law of telescoped processes is that, if A causes B and B causes C, it will happen in time that A will cause C directly, without the intermediary of B. This is a characteristic of psychological and neural causation. In virtue of this law, the effects of images upon our actions come to be produced by words, even when the words do not call up appropriate images.
He had never realised before that an airship was not one simple continuous gas-bag containing nothing but gas. Now he saw far above him the backbone of the apparatus and its big ribs, "like the neural and haemal canals," said Kurt, who had dabbled in biology. "Rather!" said Bert appreciatively, though he had not the ghost of an idea what these phrases meant.
We think those combs on top of their heads are their external hearing organs, but we have no idea what's back of them, or what kind of a neural hookup is connected to them. I wish I knew how these people dispose of their dead. I need a couple of fresh cadavers. Too bad they aren't warlike.
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