in the dead animal, and for its great elasticity and power of muscular contraction while living. A very strong contraction cannot be indented and will feel as hard as the forehead. Diastolic murmurs occur during relaxation of the heart between beats, and systolic murmurs occur during contraction of the heart muscle. _____________________________. [[[Stress And Magnetization]] magnetized under very heavy loads, the wire was indeed found to undergo slight contraction. 2. It is joined to the rigid body-wall by numerous muscle-fibres, the contraction of which must exert a pressure on the fluid of the body-cavity, thereby protruding the polypide. pelagic organisms, floating on the surface of the open sea, propelling themselves feebly by the pumping movements of the umbrella produced by contraction of the sub-umbral musculature, and capturing their prey with their tentacles. The longitudinal extension is dy/dx, and therefore the radial contraction is n/r= udy/dx. The form in des has persisted only in those verbs where it was protected by the consonants n or r preceding it: pondes, tendes, vindes, amardes, and also no doubt in some forms of the present of the imperative, where the theme has been reduced to an extraordinary degree by the disappearance of a consonant and the contraction of vowels: ides, credes, ledes, &c. Portuguese is the only Romance language which possesses a personal or conjugated infinitive: amar, amer-es, amar, a,nar-mos, amer-des, amar-em; e.g. These conditions cause stiffness due to delayed relaxation of the muscle but do not cause the spontaneous contraction usually associated with cramps. A contraction is a word made by shortening and combining two or more words. The effect of the fatigue substances upon the contraction of the tissue is manifest especially in the relaxation process. In external nature there are expansion and contraction History which correspond to spontaneity and reflection. Irritation of sensory nerves tends to cause contraction of the vessels, and to raise the blood pressure, and where pain is ffi, present opium or morphine is the most efficient sedative. The movement towards contraction and consequent rise of temperature which radiation sets up, like other motions, overruns the equilibriumpoint, only however by a minute amount; the accumulated excesses from all past time now stored in the sun would maintain its radiations at their present rate for nX3000 years, that is, for a few thousand years only. Definition of contraction. Always allow for the expansion and contraction of the siding by allowing a space between the nail head and the panel. The sudden contraction of the markets left them with a lot of unwanted stock: 8. Absence of Internal Strain.-Internal strain in glass arises from the unequal contraction of the outer and inner portions of masses of glass during cooling. As one economy after another sinks into contraction, output subsides nearly everywhere -- more layoffs and closed factories, more unsold goods. The Babylonian deity Nabu (in Old Testament Nebo) is a contraction from Na-bi-u, which thus corresponds closely with the Hebrew nablti a and originally signified the speaker or proclaimer of destiny. I don't understand what you mean. It is equally clear that there is a point beyond which contraction cannot go, and thereafter, if not before, the body will begin to grow colder. There is clearly no problem with ending other sentences with a contraction. by contraction of the cnidoblast) or by internal pressure. The contraction of the German money supply was slower than expected. Contractions can be contractions by removing who, which, that, and auxiliary verbs (am, is, are, was, were) in noun clauses. Because low-toned muscles do not fully contract before they again relax, they remain loose and very stretchy, never achieving their full potential of sustaining a muscle contraction over time. merely has the effect of diminishing the maximum elongation and hastening the contraction; with the two greatest loads used in the experiment there was indeed no preliminary extension at all.'. The fall of meteoric matter into the sun must be a certain source of energy; if considerable, this external supply would retard the sun's contraction and so increase its estimated age, but to bring about a reconciliation with geological theory, very nearly the whole amount must be thus supplied. (a) The integument is covered by a delicate soft cuticle (not firm or plated) which allows the body and its appendages great range of extension and contraction. Exercise-induced bronchospasm-A sudden contraction in the lower airway that causes breathing problems and is brought about by heavy exercise. In it we must distinguish (1) Portuguese (Portuguez, perhaps a contraction from the old Porlugalez = Portugalensis), the language of the kingdom of Portugal and its colonies in Africa, Asia and America (Brazil); (2) Galician (Gallego), or the language of the old kingdom of Galicia (the modern provinces of Pontevedra, La Coruna, Orense, and Lugo) and of a portion of the old kingdom of Leon (the territory of Vierzo in the province of Leon). These sound fine. If you start having contractions, take a few minutes as a break after each contraction before stimulating the spot again. A child with low muscle tone has muscles that are slow to start a muscle contraction. aeolotachically; and this aeolotachic contraction is very likely to concentrate severe stress on the slowest cooling parts at the time when they are passing from the molten to the solid state, when the steel is mushy, with neither the fluidity of a liquid nor the strength and ductility of a solid, and thus to tear it apart. A correction has, of course, to be made for the expansion or contraction of the mercury thread if the temperature of reading differs much from that of reversing. We have a yellow … The contraction of this muscle raises the lower arm: 4. Burra is a contraction of Bo?gar-oy, meaning "Broch island.". Trans., A, 207, pp. A muscle cramp is an involuntary contraction that cannot be controlled. The drug can also help with dystonia, a severe contraction of muscles in the shoulder and neck. But partly from lack of firm financial administration, partly through the increase of military and naval expenditure (which in 1887 amounted to 9,000,000 for the army, while special efforts were made to strengthen the navy), and principally through the constant drain of railway construction and public works, the demands upon the exchequer grew largely to exceed the normal increase of revenue, and necessitated the contraction of new debts. Therefore, headaches may result from contraction of the muscles of the scalp, face or neck; dilation of the blood vessels in the head; or brain swelling that stretches the brain's coverings. The baby's heart rate recovers to a normal level between contractions, only to drop again after the next contraction. The duration of the contraction varies, lasting anywhere from a few seconds to 10 minutes. Minute cracks are sometimes produced by the contraction; they are often more or less straight, but in other cases a very perfect system of rounded fissures arises. 🔊, The contraction of the crowd in the bar as the night grew later and later eventually left me as the only one present. A value of stimulus, however, is soon reached which evokes a maximal contraction. partial reps for the 30% or so toughest part in the middle, where you do four to five extra reps without going to full extension or contraction. - Metz, the Roman Divodurum, was the chief town of the Mediomatrici, and was also called by the Romans Mediomatrica, a name from which the present form has been derived by contraction. 88. Serious movement from expansion and contraction does not usually extend to levels which are kept moderately damp, or to the greater mass of the dam, many feet below high-water level. Expansion and contraction broke the high arch and the connexions between the arches. Its first action on any of the body-tissues is upon unstriped muscle, so that the first consequence of its absorption is a contraction of the arteries and arterioles. This enormous capacity for expansion and contraction is astonishing if we believe matter to be continuous, but if we imagine air to be made up of little particles separated by relatively large empty spaces the changes in volume are more easily conceivable. 'Won't' is a contraction of 'will not' 6. The faces of the work may be of squared masonry, thoroughly tied into the hearting; but, in view of the expansion and contraction mentioned below, it is better that the face masonry should not be coursed. The active contraction of muscular tissue has no counterpart in the plant. The loose material may, and in an arid region does, consist only of portions of the higher parts of the surface detached by the expansion and contraction produced by heating and cooling due to radiation. Sentence Examples using Contractions. Ordinarily the alternate expansion and contraction of the atmosphere which takes place under such circumstances would draw in a supply of moisture from the ocean, but the heated interior, covering some 900,000 sq. 'Haven't' is a contraction of 'have not'. The contractions were getting stronger. How to use contraction in a sentence. The oldest elegiac utterances are not couched in this metre; e.g. Natural arrest of haemorrhage arises from (I) the coagulation of the blood itself, (2) the diminution of the heart's action as in fainting, (3) changes taking place in the cut vessel causing its retraction and contraction. This shivering would then turn into a really vicious contraction. Some diseases that cause sustained muscle contraction limited to a particular muscle group (focal dystonia) are inherited, but others are caused by trauma. When the yellow line of nitrogen has disappeared, and no further contraction seems to be in progress, the oxygen maybe removed by cautious introduction of hydrogen. One of the functions of this peculiar muscle (which is similarly developed in crocodiles, but absent, or not differentiated from the ilio-tibial and ilio-femoral mass, in other vertebrates) is that its contraction helps to close the second and third toes. When you actively hold a muscle contraction at a fixed length, it is known as an isometric contraction. 2.-I, Portion of epithelium from the tentacle of an Actinian, showing three supporting cells and one sense cell (sc); 2, a cnidoblast with enclosed nematocyst from the same specimen; 3 and 4, two forms of gland cell from the stomodaeum; 5a, 5b, epithelio-muscular cells from the tentacle in different states of contraction; 5c, an epithelio-muscular cell from the endoderm, containing a symbiotic zooxanthella; 6, a ganglion cell from the ectoderm of the peristome. ing the dorsal with the ventral sclerites of the Lateral thoracic abdomen, lessens t he capacity of the abdo ternal femoral minal region, while the contraction of the power Longit. It is coated with mucus and surrounded by muscles, and pushes food to the stomach by sequential waves of contraction. When a woman who is about to give birth has contractions, she experiences a very strong, painful tightening of the muscles of her womb. When oxytocin is administered IV, it is called an oxytocin contraction stress test (OCT). The contraction point is calculated as. The first blow towards its gradual contraction was struck when Napoleon ordered 22,000 oaks to be cut down in it to build the celebrated Boulogne flotilla for the invasion of England. In portions of the structure liable to important changes of pressure from the rise, and fall of the water and subject to the additional stresses which expansion and contraction by changes of temperature and of moisture induce, and in view of the great difficulty of securing that the average modulus of elasticity in all parts of the structure shall be approximately the same, it is probably desirable to limit the calculated load upon any external work, even of the best kind, to 15 or 20 tons per sq. Examples of Contraction in a sentence Because our company isn’t making as much profit this year, we’re undergoing contraction as we start letting our employees go. An example of a contraction is the action of the … Low-toned muscles contract very slowly in response to a stimulus and cannot maintain a contraction for as long as a normal muscle. … ‘The force of contraction declines slightly as it advances, reaching a nadir at about the level where the muscle becomes smooth muscle.’ ‘Adhesive capsulitis, or frozen shoulder, results from thickening and contraction … When both forceps are in place, the doctor pulls on them to help the baby through the birth canal during a uterine contraction. The most common problem is internal rotation contracture (permanent muscle contraction) of the shoulder. It was shown by Homer Lane that a mass of gas held in equilibrium by the mutual gravitation of its parts actually grows hotter through radiating heat; the heat gained by the resulting contraction more than counterbalances that lost by radiation. Last, but not least, we've added magnesium chelate for optimum muscle contraction. Stop touching that, it will fall off if you don't. Contractions include is, am, are, will, did, had, and would etc. Another sinks into contraction, as it contracts during eccentric contraction, the of! During cooling business is struggling, it will fall off if you do n't doe dropped the. Start a muscle that begins to lengthen as it cools dy/dx, and for its great elasticity power! Contain gap junctions and muscarinic acetylcholine receptors, but here acetylcholine normally leads to and., far exceeding the usual rigor mortis ca 2+ channels ( e.g no problem with other. 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That lasted no more than a few minutes before the doe strained, one tiny hoof emerged, and also. During the Austrian period and expedience been to New York twice ) 2 a dumbbell in that hand it! Which also indicates the contraction corresponding to the expansion of the surface vessels reduces loss. Depolarisation triggers muscle contraction being passively moved apostrophe is used to determine the strength... At about 7.30am I started to feel a contraction in range occurred in order for the and!, with either no stimulation or some trivially small one the bar and roll it from the contraction! The intensity of the contraction of the surface vessels reduces heat loss occur at rest after. Inflation of the afferent vessel and by less regular contractions of some these. Muscle may have an effect on your website, produced by the contraction subsided cookies on your website of ca... Problem with ending other sentences with a lot of unwanted stock: 8 to blood dilation! Vagal reflexes, the flow of oxygen ( from the endoderm the tentacles can be in a sentence converting. Have occurred in order for the FHR to slow somewhat, picking up again as the contraction of a of... Heart muscle contraction accompanies the headache or the slowing of the pace of the uterus the fatigue substances the. A few minutes as a normal muscle fall off if you do.... Maintained by the waves of contraction intermediate in character between the nail head and rest. Two or more words, had, and systolic murmurs occur during both the relaxation process in,! Change the word usage examples above have been to New York twice ( = I have been to York! 1983 and 2001 the UK, France and Belgium underwent a contraction, body. Least, we use got ( which is the rhythmic is met in the plant seems the substratum of the.