The sheaths of the notochord and nerve cord together form the skeletogenous layer, and prolongations of it form the myomeres or septa between the myotomes or segments of the great lateral muscles of the body.
The posterior part of the skull is curiously modified in some Chamaeleons, the parietals and supra-occipitals being drawn out into a backwardly-projecting sagittal crest which unites with the two prolongations from the squamosals.
The peripheral nerves arise as directprolongations of the fibrillar substance of the nerve-cord.
From their backward-directed prolongations arises the epithelium of the vasa deferentia and oviducts.
This is an acquired deformity resulting from contraction of the palmar fascia and its digital prolongations (Fig.
When reduction is impossible by any means, a stiff leather jacket with prolongations around the thighs may diminish the deformity and improve the walking.
Dissections show that the flexion of the finger is the result of a chronic interstitial overgrowth or fibrositis and subsequent contraction of the palmar fascia and of its prolongations on to the sides of the fingers.
A great deal of nonsense has been written about imperfect measures in Shakespeare, and of the admirable dramatic effect produced by filling up the gaps of missing syllables with pauses or prolongations of the voice in reading.
From the ganglion, according to him, nervous prolongations pass, which traverse the chitinogenous layer and terminate at the base of the conical eminences.
Each of these prolongations "presente sur son trajet, mais un peu plus pres du ganglion que de sa terminaison peripherique, une cellule nerveuse fusiforme (g.
These tubular prolongations are filled with proliferating epithelial cells, which make their way into the lymphatic spaces of the surrounding tissue and give origin to the cells in the cancerous alveoli.
Prolongations of the rete mucosum between the papillae.
According to his description, a group of gastric tubules, ten to twenty in number, sends prolongationsdownward into the submucous coat.
The epithelial prolongations and the ducts of the sudorific glands m, placed between the papillae, and which run between them into the derm, are broken and suspended from the rete mucosum.
Villous prolongations (villous cancer; the undestroyed connective-tissue stroma) may project into the lumen of the bowel and give a peculiar tufted appearance to the part implicated.
Slender green tendrils, delicate prolongations of the stem, begin, almost insidiously, to catch hold of the nearest support and by a couple of turns about it and subsequent strengthening of their tissues make a permanent holdfast.
These tentacles areprolongations of the true skin, and therefore are not homologous with the stiff hairs of the former species; but it can hardly be doubted that both serve the same purpose.
It apparently consists of a lateral and broken prolongation of the mark (c), as I infer from traces of similar prolongations from the succeeding upper spots; but I do not feel sure of this.
Although the three horns differ so much in appearance from the two great prolongations of the skull in C.
These extensions at the posterior end of the body are readily comparable with prolongations in that part on which we have already commented.
After the first molt indications of the wings appear in the shape of small backward and downward prolongations of the posterior margins of the dorsum of the mesothorax and metathorax.
In the outer layer of cells there are some specially large cells whose inner ends are extended as narrow pointed prolongations directed at right angles with the rest of the cell.
Golgi himself proved that the set of fibrils known as protoplasmic prolongations terminate by free extremities, and have no direct connection with any cell save the one from which they spring.
If one likens each nerve cell to a central telephone office, each of its filamentous prolongations to a telephone wire, one can imagine a striking analogy between the modus operandi of nervous processes and of the telephone system.
Now for the first time it became possible to trace the cellular prolongations definitely to their termini, for the finer fibrils had not been rendered visible by any previous method of treatment.
Some of them possess at their base narrow and highly contractile prolongations that exercise the functions of muscles.
Others are gland-cells and secrete mucus; others have round their margins delicate ramifying prolongations and act as nerve-cells.
In such cases there is no doubt that the intense pain sometimes observed in these cases is due to pinching of these prolongations of the synovial membrane by the opposing bones of the joint.
Many botanists maintain that these tentacles consist of prolongations of the leaf, because they include vascular tissue, but this can no longer be considered as a trustworthy distinction.
In Drosera the chief seat is in the lower part of the tentacles, which, homologically, may be considered as prolongations of the leaf; but the whole blade often curls inwards, converting the leaf into a temporary stomach.
These prolongations of the bladder may be conveniently called the antennae, for the whole bladder (see fig.
Several eminent physiologists have discussed the homological nature of these appendages or tentacles, that is, whether they ought to be considered as hairs (trichomes) or prolongations of the leaf.
In Dionaea the whole lobe, with the exception of the marginal prolongations or spikes, curves inwards, though the chief seat of movement is near the midrib.
We here clearly see that the valve and collar are infolded prolongations of the walls of the bladder.
As for the temporary prolongations or pseudopodia which the amoeba seems to make, they would be not so much given out by it as attracted from it by a kind of inhalation or suction of the surrounding medium.
Thus the amoeba thrusts out its pseudopodic prolongations in all directions at once.
These are thread-like or filamentousprolongations of the epidermis beyond the surface of the leaf (Pl.
It consists of very minute oval green cells, with thick walls, and imbedded in the ends of prolongations of a gelatinous matrix.
The olfactory nerves consist of cineritious or gray substance, and are only prolongations thereof.
These tegumentary prolongations into tubes are the lymphatic vessels.
The tubular prolongations from the four external holes are of course very conspicuous on the under side of the shell (4 b); and their structure is there plainly seen.
These horns or cases resemble in structure the smaller pair just described; they arise from the ventral surface, and can hardly, therefore, be considered as prolongations of the carapace.
The cement also extends under the spoke-like prolongations of the circumferential slip, and likewise some way up the sides of the walls.
Vertical section of portion of Nummulites, showing the investment of the earlier whorls by the alar prolongations of the later.
We know now that it is not fibers but cells that are the most important components of the brain and spinal-cord substance, and that, indeed, the fibers are only prolongations of cells.
They are found only in the neighborhood of the capillaries of the gray matter and they send one or more firm prolongations to the outer surface of the endothelium of the blood vessels.
The object of these cells undoubtedly is by contraction of the prolongations to bring about local dilatation of the blood vessels.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "prolongations" in a variety of sentences. We hope that you will now be able to make sentences using this word.
