This fibrillation is foreshadowed in the contractile regions of many Protozoa, e.
The contractile elements in the Metazoa are thus dependent for their stimuli on the nervous elements--the sensory cells and neurones.
Heidenhain in relation to the leucocytes of the salamander, in which there is a permanent centrosome and astral rays to which the contractile movements of the cell appear to be due[24] (fig.
A contractile band passes from the oesophagus to the apex of the prae-oral lobe, and a diverticulum (fig.
There is a large contractile prae-oral lobe, and the body ends behind in two processes.
He states that there appears an immense contractile sack on the left side of the body.
Contractile cells are scattered in the space between the body wall and the gut.
In addition to the contractile radial tentacles ten non-contractile tentacles, also diverticula of the water-vascular ring, are soon formed, two for each interradius.
These layers, which form the epiblast and hypoblast, are definitely established on the appearance of cells with contractile tails[76] in the clear outer zone, between which the interstitial epiblast cells subsequently arise.
In Gasteropods it is usually not filled with yolk, but contains a cavity, traversed by contractile mesoblastic cells.
In connection with the vascular system mention may be made of certain contractile sinuses frequently found in the larvae of Gasteropoda and Pteropoda.
These cells would appear to be mainly, if not entirely (Chun), of a contractile nature.
The contractile cord is now inserted on this vesicle.
The foot grows out posteriorly, and contains a large provisional contractile vesicle, traversed by muscular strands which contract rhythmically.
The pupils are contractile at will, like the eyes of the cat, permitting the Nevian to see equally well in any ordinary extreme of light or darkness.
His four huge andcontractile eyes were active, each operating independently in sending its own message to his peculiar but capable brain.
In man at the critical moment a spasm passes through the whole body and similarly in the plant I find a great contractile spasm takes place.
Bose's apparatus demonstrated the unsuspected fact that every plant and every organ of every plant answered to a shock by a contractile spasm, as by an animal muscle.
In man at the critical moment, a spasm passed through the whole body, and similarly in the plant the lecturer had discovered that a great contractile spasm took place.
In man, at the critical moment, a spasm passes through the whole body, and similarly in the plant, I find that a great contractile spasm takes place.
It consists of a single dilated gelatinous vesicle, which is terminated at one extremity by a sucker, and at the other by a number of contractile filaments, which serve as the tentaculae, by which it seizes its prey.
In the sensation the extremity of the nerves strives to approach that of the brain; it is therefore a contractile effort in the nerves, like motion is in the muscular fibre.
An animal such as Amphioxus has no heart; in some the heart is systemic, in others branchial; in some there are more than one heart; in others there are contractile veins in addition to a heart.
In the cells of the higher animals the myoplasts form the specialcontractile tissue of the muscles, and the neuroplasts the psychic tissue of the nerve-matter.
The circulation of the blood in most of the coelomaria is effected by a heart, a contractile tube, formed by the local thickening of a skin-vessel, which contracts and beats regularly by means of its muscular bands.
In the cytoplasm threadlike, contractile structures are formed, and these have, like the muscular fibres of the metazoa, the power to contract and expand again in definite directions.
This layer consists of muscular cells, which come originally from the ectoderm in the form of internalcontractile processes of the skin-cells themselves, as in the polyps.
Special instances of these myophaena are the myophrisca of the acantharia--contractile threads which surround the radial needles of these radiolaria like a crown.
Muscular tissue consists of contractile cells--that is to say, of cells with the sole property of contraction.
More frequently, however, dilatation is the result of valvular lesions, and is associated with hypertrophy, there being an increase in the thickness of the walls with a diminution of the contractile power.
The contractile power of the capillaries should be improved.
Under such circumstances this state of the heart is attributable in great measure to the complication which has weakened its contractile power.
This weakens very much the contractile power of these fibres.
Dolan believes the phenomena of the cough or kinks to be due, as suggested by Laennec, to a "spasmodic condition of the muscular or contractile fibres of the bronchi and their branches.
The thrombus not only tends to become enlarged by further depositions of material from the blood, but it also tends to become diminished in size from the contractile properties of its fibrinous constituent.
But early in malignant cases, probably before the muscular fibres are damaged, the contractile power of the heart is feeble from impaired innervation, the result of the general weakness.
Some bulbous plants have not the advantage of contractile roots to keep them down in the soil, so they must secure this desirable end by different means.
It is possible, however, that bulbs get buried deeply owing to the downward pull of their own contractile roots referred to below.
At the base of each of these are numerous small outgrowths among the contractile roots.
The auricles, one pair, are contractile expansions of the efferent branchial vessels.
Each afferent vessel is expanded into a contractile branchial heart, which is provided with a glandular appendage.
A contractile striated layer found in the bodies and stems of certain Infusoria.
A thin layer of peculiar contractile tissue directly beneath the skin of the scrotum.
The contractiletissue of which muscles are largely made up.
The minute breathing pores of leaves or other organs opening into the intercellular spaces, and usually bordered by two contractile cells.
The contractilemembrane perforated by the pupil, and forming the colored portion of the eye.
Any contractile vessel of invertebrates which is not of the nature of a real heart, especially one of those pertaining to the excretory system.
Most of the species have slender, contractile stems, either simple or branched.
The contractile effect is expended upon the individual cells making up the tissues, instead of on individual muscles.
Where the disease is spreading, good results are obtained by spraying the affected surface with a weak solution of corrosive sublimate in ether, or painting the borders of the affected area with contractile collodion.
The breaking down or decomposition of this contractile substance in the muscle, sets free its potential energy.
What is there in the muscular contractile power of the animal but the force which is expressible, and which is in a certain sense convertible, into the force of gravity which it overcomes?
The conjunctiva was insensible and there was no contractile response of the pupil to the light of a candle.
The diffuse gummatous infiltration of the ano-rectal tissues and the subsequent deposition of contractile tissue are the most usual causes of these specific strictures.
Then, again, we find the organ invested with a thick contractile membrane, but cannot learn that the symptoms of perihepatitis have ever occurred.
A healthy digestion and assimilation, with active and regular contractile movements of the muscular walls of the small and large intestines, are essential to normal defecation.
The evolved gas distends the bowel and weakens its contractile power.
An important indication is to restore the tone and contractile power of the muscular coat of the stomach.
There are many reasons to believe that fatty degeneration of the smooth muscular fibre takes place, in consequence of which it loses its contractile power and atrophies.
But unless the normal elastic and contractile powers of the stomach are restored, the treatment with the stomach-tube, indispensable as it is for the relief of symptoms, is only palliative and not curative.
The portal system the more readily suffers from a passive congestion because of the provision for the alternate expansion and contraction of the tunics of the vessel, scantily supplied with contractile elements.
The peristalsis is here as active as it need be, and no good, but only harm, can come from over-stimulating the contractile muscles.
The consequent dilatation of the gut produces loss of tone and abolition of the contractile power of the muscular coat.
The cord is composed of a narrow layer of contractile fibres, scarcely visible when relaxed, on account of its transparency.
Contractile vacuole simple (in fresh-water forms) or absent; plastids yellow or brown always present; reserves fat.
The dorsal vessel is connected by a few pairs of equally contractile transverse trunks with a ventral vessel which is not contractile.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "contractile" in a variety of sentences. We hope that you will now be able to make sentences using this word.
