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Updated: May 22, 2025
Her face was bloated, her lips of a darkened hue, and her neck of a brown parchment-color. About the level of the larynx, the epidermis was distinctly abraded, indicating where the rope had been. The conjunctiva was insensible and there was no contractile response of the pupil to the light of a candle. The reflexes of the soles of the feet were tested, but were quite in abeyance.
The innermost of the three tunics, or coats, of the eyeball, being an expansion of the optic nerve. The opening of the glottis. The group of food substances which embraces the different varieties of sugar, starch, and gum. Saliva. The moisture, or fluids, of the mouth, secreted by the salivary glands; the spittle. The membrane which surrounds the contractile substance of a striped muscular fiber.
Points on one side are frequently represented by hollows on the other, and even complicated figures occasionally find a counterpart, the configuration being always relatively convex or concave. This would seem to indicate very clearly that the mass had been forcibly rent asunder, either by the contractile process of heat, or a convulsion of the earth.
If these circumstances are not attended to, as the sensorial power becomes accumulated in the quiescent fibres, an inordinate exertion takes place by the increase of stimulus acting on the accumulated quantity of sensorial power, and either the paralysis, or death of the contractile fibres ensues, from the total expenditure of the sensorial power in the affected organ, owing to this increase of exertion, like the debility after intoxication.
After death it was found that none of the viscera were wounded, and death was attributed to the fact that the in-rush of air counterbalancing the pressure within the lungs left them to their own contractile force, with resultant collapse, obstruction to the circulation, and death. It is said that Vesalius demonstrated this condition on the thorax of a pig.
In answer to this mode of reasoning it may be sufficient to observe, that the contractile fibres consist of inert matter, and when the sensorial power is withdrawn, as in death, they possess no power of motion at all, but remain in their last state, whether of contraction or relaxation, and must thence derive the whole of this property from the spirit of animation.
Such great black eyes! such exceedingly fine white hair! feet so contractile when raised, so soundless in planting, so broad when set! nobody had ever seen the peer of this camel. And how well he became his housing of silk, and all its frippery of gold in fringe and gold in tassel! The tinkling of silver bells went before him, and he moved lightly, as if unknowing of his burden.
And that in diseases attended with debility, as in nervous fevers, where the fibrous contractions are weaker, and more frequent, it may be conceived that the cause consists in a decrease of mobility of the fibres; and that those weak constitutions, which are attended with cold extremities and large pupils of the eyes, may possess less mobility of the contractile fibres, as well as less quantity of exertion of the spirit of animation.
The gecko is a kind of nocturnal lizard. Its eyes are large, and the pupil is extremely contractile. It hides itself during the day, and is lively only at nights. It haunts rooms, especially kitchens, in Egypt, where it finds the insects which form its ordinary food. Its feet constitute its most marked characteristic.
Contraction is not, however, the natural state of a muscle. In time it is tired, and begins to relax. Even the heart, the hardest-working muscle, has short periods of rest between its beats. Muscles are highly elastic as well as contractile. By this property muscle yields to a stretching force, and returns to its original length if the stretching has not been excessive.
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