This discovery has given rise to other experiments, and it has been found that polypi are not the only animals which live and grow after being cut in pieces.
The form of these polypi is elegant, and pleasantly diversified.
There are other cases in which the whole or part of the upper jaw has been removed for the purpose of giving access to disease behind, for example, to naso-pharyngeal polypiwith extensive attachments.
Trembley of Geneva upon the fresh-water polypi were repeated by the Abbé Dicquemare on the sea anemones.
Along the sides of these, or at their extremities, we find the denticles or cup-like cells of the polypi arranged in a determinate order, either sessile or elevated on a stalk.
The tube is branching, and the orifices from which the polypi expand become dilated into cup-like cells.
The Pacific and Indian Oceans are studded with islands in a state of formation, which owe their origin to the polypi and corallines.
It is a general characteristic of all colonies of polypi that the digestive cavities of the individuals composing them meet and inosculate in a common vascular system.
Let us compare the Infusoria, or even the Polypi and Gorgons, with these shifting vegetable organisms, and say if it is easy to determine, without considerable study, which is the plant and which the animal.
This zoophyte consists of a thin, straight, fleshy stem, with alternate rows of polypi on each side, and surrounding an elastic stony axis, varying in length from eight inches to two feet.
It is by the life and habits of the polypi that we explain those Coral Islands found in the sea, the existence of which has been a subject of much astonishment, and ought, therefore, to find a place in this chapter.
Although the polypi are the cause of the island being formed, they do not actually form it.
Some islands have had a rock, or, perhaps, the plateau of some marine mountain for their commencement, and the polypi have simply enlarged it, and formed a reef around it.
The whole form a living mass, or polypidom, all the polypi in which are united under one skin, and have one common stomach.
Two Polypi may occasionally be seen in the act of seizing the same worm at different ends, and dragging it in opposite directions with great force.
The polypi which form the massive stony corals of the tropical reefs, are furnished with numerous tentacles, and resemble in their general conformation the Sea Anemones which are so well known now-a-days as inhabitants of aquaria.
Each of these polypi resides in a distinct cell; they are generally dormant during winter, and like the blossoms of plants, push forth buds, and expand in the summer season.
I hope so; we shall, therefore, put thepolypi with Ernest's stars and Jack's admirals.
The same thing occurs if you cut one through the middle crosswise, a head grows on the one half and a tail on the other, so that you have two entire polypi either way.
Primus of Babenhausen asserts, that the saffronised tincture of opium (of the Prussian Pharmacopœia) possesses the property of gradually destroying nasal polypi when applied to them.
Granulations and polypi usually indicate the presence of middle-ear suppuration.
It must not be forgotten that nasal polypi may be associated with suppuration in one or more of the accessory sinuses.
The presence of polypi and granulations, with pus oozing out from between them, and increasing after withdrawal of the probe, and the detection of carious bone are significant of ethmoidal suppuration.
Amongst the former may be noted as the more common, erectile swelling and hypertrophy of the mucous membrane covering the inferior turbinated bones, and nasal polypi growing from the middle turbinal and middle meatal region.
We may consider the polypi in a zoophyte, or the buds in a tree, as cases where the division of the individual has not been completely effected.
It consists of a thin, straight, fleshy stem, with alternate rows of polypi on each side, and surrounding an elastic stony axis, varying in length from eight inches to two feet.
The boy never remembers having smelt anything, and the polypi can easily be seen blocking up both nostrils.
My own experience of the treatment of nasal polypi is that we have very few remedies that can at all be depended upon for giving even temporary relief.
How far it is capable by its specific action of removing large groups of polypi remains, as yet, an open question.
Lemna has so far given relief in my hands to cases of nasal polypi and to cases where the nostrils were plugged by swollen turbinates and other causes in a matter far surpassing the effect I have obtained from any other remedy.
I ordered, as in the last case, with the result that the polypi very greatly diminished in size, and the patient could again take her place in society.
Occasionally deformities of the septum or other internal structures also polypi or tumors, are sources of constant irritation and accelerate catarrhal disease.
Polypi often attain considerable size and by pressure upon and displacement of the surrounding structures occasion hideous facial deformity.
Large polypi removed toward the close of pregnancy will cause hemorrhage.
Small polypi may be treated by torsion or astringents.
If the polypi should seize hold of you as you return through the wood," said the witch, "throw over them a few drops of the potion, and their fingers will be torn into a thousand pieces.
She fastened her long flowing hair round her head, so that the polypi might not seize hold of it.
But the little mermaid had no occasion to do this, for the polypi sprang back in terror when they caught sight of the glittering draught, which shone in her hand like a twinkling star.
Its nets brought up numerous specimens of polypi and curious shells of mollusca.
We dug the grave, and the polypi undertake to seal our dead for eternity.
The division containing the zoophytes presented the most curious specimens of the two groups of polypi and echinodermes.
As to the vessel, it moved not, and was immovable, as if the coralline polypi had already walled it up with their in destructible cement.
But the little mermaid had no occasion to do this, for the polypi sprang back in terror when they caught sight of the glittering draft, which shone in her hand like a twinkling star.
If the polypi should seize you as you return through the wood," said the witch, "throw over them a few drops of the potion, and their fingers will be torn into a thousand pieces.
She fastened her long, flowing hair round her head, so that the polypi should not lay hold of it.
It is, however, probable, that in the depth it reposes on masses of polypi still living.
Whether rocks formed by polypi still living are found at great depth below this fragmentary rock of coral or whether these polypi are raised on the Jura formation are questions which I am unable to answer.
Sometimes the fragments form a mass of from one to two cubic feet and the grains of quartz so disappear that in several layers one might imagine that the polypi have remained on the spot.
It may also be a symptom, or the produce, of polypi in this organ.
Mercer, in The Veterinarian, of July, 1844, gives an interesting account of the production of polypi in the meatus of the ear.
The polypi of the nasal and of the anal cavities often show themselves under the form of rounded bodies, projecting from the nose or anus.
The Italian greyhound is strangely subject to these polypi in the matrix or vagina.
The methods of destroying polypi in the nasal cavity vary with the texture, size, form, and position of these excrescences.
The dog is liable to polypi in the nasal cavity, in the anus, and in the vagina, which it will not be out of place to mention here.
It is for this reason that we try to avoid the removal of adenoids in patients under 3 years of age, or of polypi in those over 60; and that in all cases we endeavour to operate as rapidly as possible.
This method, therefore, is practically limited to such trivial operations as the curetting away or snaring off of granulations or polypi from the external or middle ear.
Any attempt to destroy the roots ofpolypi by the galvano-cautery is useless and dangerous.
This operation is indicated in all cases of recurring polypiand extensive caries of the ethmoid, but the plan of operation is also suitable for the removal of some cases of papilloma, fibroma, enchondroma, or osteoma.
This procedure in the case of polypi arising from the region of the tegmen tympani has been known to give rise to fatal meningitis.
Facility for treating nasal polypi and affections of the accessory sinuses.
In the case, however, of multiple polypi associated with chronic middle-ear suppuration and usually signifying underlying bone disease, recurrences may be frequent and further operations may become necessary.
When recurring groups of polypi are produced by the suppuration in the frontal and ethmoidal cells.
Sometimes an examination of the tympanic cavity may be prevented before operation owing to the auditory canal being filled with polypi or granulations.
This method, which should only be made use of in the case of small multiple polypi within the tympanic cavity, will be considered when discussing the treatment of granulations within the middle ear (see p.
As aural polypi are always associated with suppuration, it is especially necessary that the ear should be thoroughly cleansed before operation.
These beautiful polypi skeletons cluster in curious formations, as the visitor will perceive on examining the fine collection of corals before him.
In degenerate nasal cavities polypi (tumours) are apt to occur.
Deformities of the nasal septum, deflection, hypertrophy and atrophy of the turbinate bones, deformities of the maxillary sinus, hypertrophy of the mucous membrane and polypi are common.
Still further, irritation and an unstable mucous membrane results, with polypi or adenoid vegetation following.
He asserts that he has cured fissures of months' standing by means of local applications, where the ulcers were uncomplicated with polypi or hemorrhoids, and where there was not very marked spasm or thickening of the sphincters.
Fibroid polypi and other new growths must be removed.
Polypi of the colon have been seen and figured by other pathologists, but they were not connected with ulceration and cicatrization of ulcers.
The gelatinoid or soft polypi are also partly composed of connective tissue and vessels, but much finer than in the other: they contain hypertrophied follicles and are covered with spherical epithelium.
The polypi of the rectum are the gelatinoid and the fibroid, but as a very rare occurrence a villous or warty polypus has been found.
Should any polypi be found, their removal by ligation or by the knife is an essential element of success in the operation; retention of urine is not infrequent after operations upon fissure.
For illustration of multiplepolypi of colon and rectum, Lebert, Path.
Obstruction of the pylorus by mucous polypi or by hypertrophic folds of mucous membrane is so rare as to have little practical interest.
The minute polypioriginate in a process of growth of the undestroyed mucous tissue.
The polypi vaginati, in the crustaceous covering of the living mass, and their more or less articulated structure, represent the annulosa.
And, finally, in the fleshy living mass which surrounds the bony and hollow axis of the polypi natantes, we have a sketch of the vertebrata.
In the radiated forms of the rotifera, and the simple structure of the polypi rudes, we are reminded of the radiata.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "polypi" in a variety of sentences. We hope that you will now be able to make sentences using this word.
