The thyreoid and cricoid cartilages are also liable to be fractured in run-over accidents, particularly in old people after calcification or ossification has taken place.
The older the patient, and the further ossification has progressed, the more does the crepitus resemble that of fracture.
When some days have elapsed before reduction is attempted, forcible manipulations are to be deprecated as they greatly increase the risk of ossification occurring in relation to the brachialis (D.
In this way the intertarsal joints are not interfered with, and the cartilaginous tarsus can be moulded so that when ossification is completed the bones differ but little from the normal.
On section of the bones, the epiphysial cartilage and the zone of ossificationare found to be unduly broad and irregular.
The lungs have nothing to do with the coronary arteries; ossification of them is supposed to cause sudden death.
Jenner that this disease is occasioned by the ossification of some of the small vessels of the heart.
The restriction of motion may be absolute if ossification of the granulation tissue lying between the epiphyses unites their eroded ends (bony ankylosis).
In the embryo of the bony fish a similar notochord precedes the segmentation and ossification of the vertebral column.
The form and degree of ossification of these vertebrae differ materially in the different groups.
At the age of three, the ossification of the cranial vault has been completed.
In the new-born child the sternum is a cartilage with points of ossification arranged longitudinally like the beads of a rosary.
The ossification of the cranium itself reaches completion.
It is not yet uniformly rounded, but polyhedral because of the noticeable prominence of the five primitive nodules or centres of ossification (2 frontal, 2 parietal, 1 occipital, Figs.
Order of Appearance of the Points of Ossification and of Synostosis of the Sutures.
Since the process of ossification of the bones is not yet completed, certain membranous portions or cranial fontanelles still remain, which are especially wide at the points where several bones meet.
An ossificationof the aorta, and several calculous concretions found in the cavities of the heart, had been the cause of the disease under which he had suffered for several years before his death.
A process of bone formation in which ossification takes place within the substance of the cartilage.
A process of bone formation in which ossification takes place in the perichondrium and either surrounds or gradually replaces the cartilage.
The postero-lateral ossification in the sternum of birds; also, the part resulting from such ossification.
A median ossificationback of the lophosteon in the sternum of some birds.
Ossification which takes place in purely fibrous tracts; the formation of bone outside of the periosteum.
The Wormian bones, or points of ossification inserted between the bones of the skull, are of the number.
Formed of a single cartilaginous and membranous substance at the beginning of embryonic life, the cranium is composed in the last f[oe]tal state of a great number of points of ossification of various texture.
A similar ossification has been observed in relation to the insertion of the brachialis muscle as a sequel of dislocation of the elbow.
A rarer variety is the ossifying chondro-sarcoma, which undergoes ossification to such an extent as to be visible in skiagrams.
Ossification in Muscles of Trunk in a case of generalised Ossifying Myositis.
Calcification andOssification in Muscles, Tendons, and Fasciæ.
Various forms of ossificationare met with in muscle as the result of a single or of repeated injury.
Calcification and Ossificationin Biceps and Triceps.
They have no malignant tendencies and tend to undergo ossification concurrently with the epiphysial cartilage from which they take origin, and constitute what are known as cartilaginous exostoses.
Ossification in the crureus or vastus lateralis muscle has been frequently observed as a result of a kick from a horse.
The difficulties with which it is most frequently connected are dilatation and ossification of the valves.
Endochondral ossification first appears dorsally in the vertical part of the septum at the level of the internal nares.
Perichondral ossification representing the prootic bone occurs at the margin of the optic foramen and somewhat posteriorly over part of the floor of the neurocranium.
Perichondral ossificationof the ventral part of the septum nasi is first noted at the level of transition between the planum antorbitale and solum nasi.
Posteriorly, endochondral ossificationis restricted in the dorsal part of the otic capsule but somewhat increased in the floor of the capsule.
The septum is entirely cartilaginous posterior to the level of the olfactory eminence, except for a small amount of secondary membranous ossification dorsomedially at a level anterior to the nasal bones.
Ossification terminates first in the ventrolateral corners, followed by the lateral and dorsolateral areas.
This ossification expands laterally until it meets the crista parotica dorsolaterally and forms the dorsal part of the prootic bone.
Perichondral and endochondral ossification occurs in the sides of the neurocranium ventral to the lamina perpendicularis.
Ossification of dorsal parts of the septum precedes ossification of ventral parts.
Perichondral ossification commences in the dorsal part of the septum nasi at the level of the olfactory eminence.
The ossification does not reach the point at which the three nuclei are joined until after birth.
In the subsequent ossification of the cartilaginous vertebra the first deposit of bony matter ("first osseous nucleus") takes place in the vertebral body immediately round the remainder of the chorda, and soon displaces it altogether.
This stiffness is increased in many orders of mammals (especially the carnassia and rodents) by the ossification of a part of the fibrous body (corpus fibrosum).
Ossification (Gegenbaur) of the centra appears in a special inner layer of cartilage, which is probably the same as the inner layer of the earlier stage, though this point has not been definitely established.
In the formerossification directly sets in without the sheath acquiring the character of hyaline cartilage (Goette, 419).
The ventral usually contains a single ossification in its posterior part which forms the ischium; while the anterior part, which may be considered as representing the pubis, usually remains cartilaginous; though Huxley (No.
In the occipital region there is a lateral ossification on each side of the exoccipital, the basioccipital region being unossified, and the supraoccipital at the utmost indurated by a calcareous deposit.
As to the processes which take place in the ossification of cartilage there is still much to be made out.
In the Meckelian cartilage a superficial ossification of the ventral edge and inner surface forms an articulare (ar); but the greater part of the cartilage persists through life.
The regions whereossification first sets in are known as centres of ossification; and from these centres the ossification spreads outwards.
The mode of ossification is nevertheless in many respects intermediate between that of a true cartilage bone and a membrane bone.
The first vertebra to ossify is the second or third cervical, and the ossification gradually extends to those behind.
In dorsal view, ossification proceeds anteriorly between the nasals and posteriorly, ventral to the frontoparietals; ventrally, ossification proceeds posteriorly dorsal to the parasphenoid.
Ossification follows in the regions of the semicircular canals and occipital condyles.
A small, oval foramen involves the posterior part of the ethmoid and anterior portion of frontoparietals; continued ossification in older specimens fills in the foramen, thereby resulting in a solidly roofed cranium.
As ossificationproceeds the nasals assume a triangular shape in dorsal view.
The progress of ossification in the skull of the cricketfrog Pseudacris nigrita triseriata.
With further ossification the maxillary processes extend to the maxillaries and form complete bony anterior margins to the orbits; the mid-parts of the nasals widen (Pl.
In young specimens no distinct ossification of the cleithrum or ossification of endochondral centers are evident.
The most rapid ossification begins laterally at the posterior edge of the orbit and decreases anteriorly over the posterior half of the orbit.
Initially the frontoparietals are present as thin rods of ossification dorsomedial to the orbits; the frontoparietals extend from the anterior to the posterior end of the orbit by developmental stage 44.
The pterygoids do not appear until metamorphosis, when ossification is evident in only the mid-parts of the posterolateral arms.
Goin (1961) mentioned dentigerous elements and cranial co-ossification in his synopsis of the genera of hylids.
Ossification begins in the lateral flanges, then in the prevomerine processes, and lastly in the posterior dentigerous parts of the bones; the prevomerine processes are the last parts of the vomers to ossify completely.
Of course, the greater part is eliminated by the natural processes, but enough is retained to make ossification a formidable fact.
What is termed old age is simply ossification (solidification of the tissues), and this is due to the constant deposition in the system of earthy substances.
The ossification is extending in the inter-cellular spaces, and the rows of cells are seen resting in the cavities so formed, the nuclei being more separated than above.
As ossification proceeds, the cup-shaped cavities are converted into closed interstices of bone, with extremely thin lamellæ, or layers.
Inflammation of the endocardium, the lining membrane of the heart, may cause a thickening of it, and ossification of the valves of the heart, thus impairing its function.
Note: Besides the natural ossification of growing tissue, there is the so-called accidental ossificationwhich sometimes follows certain abnormal conditions, as in the ossification of an artery.
Defn: The postero-lateral ossification in the sternum of birds; also, the part resulting from such ossification.
Defn: Ossification which takes place in purely fibrous tracts; the formation of bone outside of the periosteum.
Defn: A median ossification back of the lophosteon in the sternum of some birds.
Ossification of the Cartilages of the Third Phalanx.
Subjects which continue somewhat lame, because of complete ossification of both cartilages, are best put to slow work on soft ground and not driven on pavements.
More or less destruction of the cartilaginous portion of the bursa, sometimes involving the tendinous portion of the biceps, takes place and, according to Moller, in some instances there occurs ossification of the tendon.
Rarefying osteitis in chronic ringbone and ossification of lateral cartilages.
The causes ofossification of these cartilages are several.
Ossification of the cartilages is known by grasping the free borders with the fingers and attempting their flexion; the rigid inflexible ossified cartilage is thus easily recognized.
And, naturally, one is not to expect resolution in cases where there exist erosion and ossification of cartilage--where crepitation is discernible.
When an ossification of the aorta, or of its valves, exists, there will be a resistance to the passage of the blood from the left ventricle, either by a loss of dilatability in the artery, or a contraction of the orifice by the ossified parts.
How far does the existence of this ossification in this and other cases related by different authors, without symptoms of angina pectoris, disprove the opinion that it is the cause of that disease?
There is no difficulty in discovering in this case an organic disease of the heart, which probably consists in an enlargement and thickening of the heart, and an ossification of the semilunar valves of the aorta.
Considerable ossification had taken place in the semilunar valves of the aorta, so that one of them had quite lost its form; and the aorta was ossified for the space of a square inch, at a small distance from the valves.
Besides these great differences in form, there are important differences in the amount and distribution of centres of ossification of the skull of frog and mammal.
A paired ossification appears in the palato-pterygoid cartilage the pterygoid bone (pt.
One centre of ossification in the frog forming pro-otic; several fuse together and form periotic of the dog.
Presumably this section of the roof is an ossification of the synotic tectum.
A faint pattern of pitting radiates on the surface from the center of ossification of the frontal.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "ossification" in a variety of sentences. We hope that you will now be able to make sentences using this word. Other words: arteriosclerosis; hardening; petrification; sclerosis; setting; solidification; tempering
