The sclerotic is lined with a highly pigmented membrane, the choroid, and this is turn is lined in the back half of the eyeball with the nearly transparent retina, in which the fibers of the optic nerve ramify.
Defn: An area in the pigmented layer of the choroid coat of the eye in many animals, which has an iridescent or metallic luster and helps to make the eye visible in the dark.
A skin disease characterized by the presence of numerous small pigmented spots resembling freckles, with which are subsequently mingled spots of atrophied skin.
Defn: One of the group of pigmented cells which surround the retinophoræ of invertebrates.
Defn: The posterior pigmented layer of the iris; -- sometimes applied to the whole iris together with the choroid coat.
A vascular pigmented membrane projecting into the vitreous humor within the globe of the eye in birds, and in many reptiles and fishes; -- also called marsupium.
Defn: The morbid deposition of black matter, often of a malignant character, causing pigmented tumors.
Sometimes applied to the whole layer of pigmented epithelium of the choroid.
In thirty cases in which alcoholic phthisis was present a dense, fibroid, pigmented change was almost invariably present in some portion of the lung far more frequently than in other cases of phthisis.
The pigmentedlayer of the choroid coat represents this blackened lining.
At about the eighth month of intra-uterine existence, a good deal of this lanugo is lost, to be replaced on the head and eyebrows by a crop of thick, coarse, pigmented real hair.
With the general diffuse pigmentation or darkening there are often the black spots, the pigmented birth marks, or the lighter ones of freckles.
The shell-muscle is developed, and peculiarpigmented bodies are formed below the velum.
There can be little doubt that this nucleus is the male pronucleus, and that the pigmented streak indicates its path inwards.
Between the sclerotic and the subjacent choroid coat is a lymph space traversed by some loose pigmented connective tissue,--the lamina fusca.
The pigmented layer consists of a single layer of hexagonal cells containing pigment, which is capable of moving towards the rods and cones when the eye is exposed to light and away from them in the dark.
The roof is formed of two or three layers of smallish pigmented cells, and the floor of large cells, which form the greater part of the ovum.
The pecten is almost entirely composed of vascular coils, which are supported by a sparse pigmented connective tissue; and in the adult the pecten is still extremely vascular.
The invaginated cells forming the dorsal wall of the mesenteron soon become divided into a pigmented hypoblastic epithelium adjoining the lumen of the mesenteron (fig.
The retinal part of the eye arises in the first instance as a prominence of the wall of the cerebral vesicle: its cells become very columnar and pigmented at their inner extremities (fig.
The pigmented part is at the upper pole of the egg, and contains the germinal vesicle till the time of its atrophy; and the yolk-granules in it are smaller than those in the unpigmented part.
All pigmentedanimals clotted when the nucleo-proteid was derived from either source.
The hairs which occupy the region which in the pigmented individual is black, are longer, thinner and more widely separated than those in the regions which are white.
It was found that the resistance of albinoes towards the coagulative effects of injected nucleo-proteids was to that of pigmented individuals as 1.
Occasionally the piebald patches tend to be symmetrically arranged, and sometimes the eyeballs are pigmentless (pink) and sometimes pigmented (black).
Some animals are wholly pigmented during the summer and autumn, but through the winter and spring they are in the condition of extreme partial albinism and become almost complete albinoes.
This would give for albinoes and pigmented individuals the amount per kilogramme of body-weight required to kill in each case, and would afford a measurement of the relative resistance of the two races.
Some of the individuals will be one or other of the two colours, the determinants of which were borne by the albino, and others the colour of the pigmented parent.
And this brings us to the question as to whether in a piebald animal the pigmented hairs are in any way different from the pigmentless or white hairs.
A popular conception exists that albinoes are less constitutionally strong than the pigmented individuals of the same species.
Moreover, it was found that all the failures of coagulation occurred when the nucleo-proteid used was obtained from pigmented animals.
We may conceive, then, that a pigmented animal owes its colour to the power that certain tissues of its body possess to secrete both tyrosinases and chromogenic substances.
Pickering showed that the three synthesized colloids of Grimaux in the same way produced coagulation in pigmented animals, but failed to do so in albinoes.
The pigmented varieties include the chloroma, which is of a light-green colour, and the melanotic sarcoma, which is brown or black.
It most often appears in the early years of life, sometimes in relation to a pigmented or hairy mole.
In the pus are found yellow particles likened to fish-roe, or black pigmented granules like gunpowder.
Overgrowths in relation to the cutaneous nerves, especially the plexiform neuroma, occasionally originate in pigmented moles.
It is not uncommon to have particles of carbon embedded in the tissues after lacerated wounds, leaving unsightly, pigmented scars.
The parts around are usually pigmented and slightly œdematous, and as a rule there is little pain.
Rodent cancer sometimes originates in the slightlypigmented moles met with on the face.
Sometimes the dissemination involves the lymph vessels of the limb, forming a series of indurated pigmented cords and nodules (Fig.
Apparently these pigmented cysts surround unhealthy or dead larvae and are secreted as a defensive mechanism by the host (Schell, 1952a).
These insects began to die off rapidly and the normally lightly pigmented parts of the body became red.
Oswald (1958) has reported finding similar pigmented cysts in Blatta orientalis and Periplaneta americana that were experimentally infected with Rictularia coloradensis.
In the degeneration of the eye the retina leads; the vitreous body and lens follow; the more passive pigmented layer and sclera remain longest; the bony orbit is not affected.
In Amblyopsis scleral cartilages are present and prominent, the pigmented layer is prominent, the outer and inner nuclear layers form one layer only, two or three cells deep.
This pigmentedcondition is evidently a hereditarily transmitted condition.
He'd snipped samples of pigmentedskin from dead patients in the hospitals, and examined the pigmented areas, and very, very painstakingly verified a theory.
That is to say, they take after the father in being rough-coated, but after the mother in being pigmented and short-haired.
On the other hand, white species withpigmented eyes are fairly numerous.
In the easier circumstances of domestication, animals which are irregularly pigmented are able to survive, so that, among them, the almost universal tendency to the massing of pigment can be followed without let or hindrance.
The mosquitoes fed on the sparrow with no proteosoma contained no pigmented cells.
The darkened spots are due to pigmented matter, and this is generally most marked in the pyloric half of the stomach.
In a few places, particularly on the uterus, a blackish pigmented deposit appeared.
Pigmented gelatine is, without doubt, the coming medium for photographic prints, and the methods of making them must approximate more and more closely to those of the typographic printer.
Diagnostic dental characters include: 3rd upper unicuspid smaller than 4th, and unicuspids, except 5th, with a pigmented ridge extending from near apex of each tooth medially to cingulum and sometimes ending as internal cusplet.
Third unicuspid usually smaller than fourth; upper unicuspids usually with pigmented ridge extending from apices medially to cingula, uninterrupted by antero-posterior groove; post-mandibular foramen usually absent.
The result is the pigmented leucocyte, so characteristic of malarial blood.
He found in the stomach-wall pigmented bodies exactly similar to those which he found in the stomach-walls of mosquitoes fed on human malarial blood.
These epithelial tubes lead to a pigmented area on each side, and these pigmented areas in section look like simple eyes.
Examining it closely, we may find that thispigmented edge gives evidence of progressive inflammation at the back of the eye, and extending to continuous and increasing atrophy and retrocession of the coats of the eye.
Johnson), which also occurs in this region, but differing in having the dorsum pigmented throughout, being black or slaty with pale lines between the segments and dividing each of the latter transversely excepting across the middorsal region.
Anterior thoracic segments darkly pigmented both above and below, and also along both sides of tori, and most setigerous papillae and tori of succeeding regions of body also surrounded in some degree with a pigmented area.
A less deeply pigmented species easily distinguished from this northern form in wholly lacking the ventral papillae (neurocirri) present in the latter below the parapodia of about the eighteenth to thirtieth segments.
The refractive and elongate crystalline cones, with their pointed apices and densely pigmented sides, must destroy any images formed by the lenses of the cornea.
The refractive lens collects the rays, and the pigmented as well as refractive crystalline cone further concentrates the pencil, while it stops out all rays which diverge appreciably from the axis.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "pigmented" in a variety of sentences. We hope that you will now be able to make sentences using this word.
