Lamellae sentence example

lamellae
  • The second method, which he calls the "Promptuarium Multiplicationis" on account of its being the most expeditious of all for the performance of multiplications, involves the use of a number of lamellae or little plates of metal disposed in a box.
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  • The upper, wide opening of the duct is attached by elastic, peritoneal lamellae to the hinder margin of the left lung; the middle portion of the duct is glandular and thick-walled, for the deposition of the albumen; it is connected by a short, constricted " isthmus " (where the shell-membrane is formed) with a dilated " uterus " in which the egg receives its calcareous shell and eventual pigmentation.
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  • 4, d, the large branchial vein of Patella bringing blood from the gill-series to the heart is seen; where it crosses the series of lamellae there is a short interval devoid of lamellae.
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  • It forms small brown lamellae which dissolve slowly in water to give a fuchsine-red solution possessing a violet reflex.
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  • In Bouchardia the septum only is furnished with two short anchor-shaped lamellae.
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  • The probability appears to be against an actual introversion of the appendage and its lamellae, as was at one time suggested by Lankester.
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  • C IX It is important to note that the series of lamellae of the lung-book and the gill-book ?_.
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  • That is neces sarily a blood-holding structure and is obliterated and fused with soft tissues of the sternal region so that the lamellae cannot be detached and presented as standing out from it.
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  • The maceration of the soft parts of a scorpion preserved in weak spirit and the cleaning of the chitinized in-grown 1nus cuticle give rise to the false appearance of a limb axis carrying the lamellae.
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  • 14.1130 indicates that there are 130 lamellae in the scorpion's lung-book, whilst 1150 indicates that 150 similar lamellae are counted in the gill of Limulus.
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  • - Diagram to show the way in which an outgrowing gill - process I bearing blood-holding lamellae, may give rise, if the sternal body wall sinks inwards, to a lung-chamber with air-holding lamellae.
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  • L is the condition of outgrowth with gl, gill lamellae.
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  • Mesosomatic segments furnished with large plate-like appendages, the 1st pair acting as the genital operculum, the remaining pairs being provided with branchial lamellae fitted for breathing oxygen dissolved in water.
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  • In primitive forms the respiratory lamellae of the appendages of the 3rd, 4th, 5th and 6th, or of the 1st and 2nd mesosomatic somites are sunk beneath the surface of the body, and become adapted to breathe atmospheric oxygen, forming the leaves of the so-called lung-books.
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  • It is probable that the Silurian scorpion was an aquatic animal, and that its respiratory lamellae were still projecting from the surface of the body to serve as branchiae.
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  • On either side of the body between the mantle and the foot are two flat gills each composed of two lamellae.
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  • As the axis of the ctenidium lies by the side of the body, and is very frequently connate with the body, as so often happens in Gastropods also, we find it convenient to speak of the two plate-like structures formed on each ctenidial axis as the outer and the inner gill-plate; each of these is composed of two lamellae, an outer (the reflected) and an adaxial in the case of the outer gill plate, and an adaxial and an inner (the reflected) in the case of the inner gill-plate.
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  • This is difficult to see in Anodonta, but if the mantle-skirt be entirely cleared away, and if the dependent lamellae which spring from the ctenidial axis be carefully cropped so as to leave the axis itself intact, we obtain the form shown in fig.
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  • The gill axis d is seen lying in the sub-pallial chamber between the foot b and the mantle c. From it depend the gillfilaments or lamellae - formed by united filaments - drawn as black lines f.
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  • On the left side these lamellae are represented as having only a small reflected growth, on the right side the reflected ramus or lamella is complete (fr and er).
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  • In this region the inner lamellae of the inner gill-plates are no longer !f f f fi f f, I' .i!` FIG.
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  • The concrescence, then, of the free edge of the reflected lamellae of the gill-plates of Anodon is very extensive.
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  • The mechanical result of the concrescence of the outer lamellae to the mantle-flap, and of the inner lamellae to one another as shown' in section D, fig.
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  • In Anodonta the eggs pass into the space between the two lamellae of the outer gill-plate, and are there FIG.
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  • A, Of Chiton: f.t., fibrous tissue; a.b.v., afferent blood-vessel; e.b.v., efferent blood-vessel; g.l., laterally paired lamellae.
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  • For the use of the oculist, who constantly employs this drug, it is also prepared in lamellae for insertion within the conjunctival sac. Each of these contains one-thousandth part of a grain of physostigmine sulphate, a quantity which is perfectly efficient.
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  • Each gill has the structure of a typical molluscan ctenidium, consisting of an axis bearing an anterior and posterior row of filaments or lamellae.
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  • If a thin cellulose membrane is interposed between the lamellae, the hyphae nevertheless turn chemotropically from the one lamella to the other and pierce the cellulose membrane in the process.
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  • On four feet (i, k,1, m) are the rudiments of the lamellae which subsequently form the brood-cavity.
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  • This body appears to be the source of light, and has behind it a reflector formed of concentric lamellae, while, in front, in some cases, there is a refracting lens.
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  • They may have rudimentary exopodites, and may or may not have branchial filaments or lamellae developed on their posterior faces.
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  • Frequently the margins of the carpels, which fold in to the centre, split there into two lamellae, each of which is curved outwards and projects into the FIG.
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  • The small sinuous segmented body is enclosed, except for one small opening, in an enormous sac-like carapace, between the lamellae of which are protruded from the body the ovary and " liver," both large, bifurcate and ramified.
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  • Usually polymer crystals take the form of chain folded lamellae.
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  • Both upper and lower mandibles contain rows of tiny bony structures called lamellae.
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  • The plagioclase often shows very thin exsolution lamellae of potash feldspar, but nevertheless the original bulk chemical composition was probably low in potassium.
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  • The secondary lamellae are loosely bound together by mucus.
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  • In high polymers it is commonly observed that crystalline lamellae, grown from the melt, thicken after initial crystallization [6] .
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  • Because this leads to insupportable coherency strains, dislocations form in two directions at right angles on the surface of the albite lamellae.
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  • Both genera are characterized by their habit of secreting a tubular gelatinoid investment, the "coenoecium," composed of a number of superposed lamellae, doubtless the result of its intermittent secretion, mainly though perhaps not exclusively, by the proboscides of the zooids.
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  • Amethyst is composed of an irregular superposition of alternate lamellae of right-handed and left-handed quartz.
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  • In the anthopolyp, on the other hand, the digestive cavity is always subdivided by so-called mesenteries, in-growths of the endoderm containing vertical lamellae of mesogloea (see Anthozoa).
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  • Furthermore it is so thoroughly adapted to running upon the desert sand that its digits are devoid of adhesive lamellae.
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  • The axes i are now free; the outer lamellae of the outer gill-plates (er) still adhere by concrescence to the mantle-skirt, whilst the inner lamellae of the inner gill-plates meet one another and fuse by concrescence at In the lateral view of the animal with reflected mantle-skirt and gill-plates, the line of concrescence of the inner lamellae of the inner gill-plates is readily seen; it is marked as in fig.
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  • This is abruptly bent down in the middle, as if broken; the upper jaw is rather flat and narrow, while the lower jaw is very roomy and furnished with numerous lamellae, which, together with the thick and - ? :; =?:??.: large tongue, act like a sieve, an arrangement enhanced by the considerable movability of the upper jaw.
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  • They are present from the beginning of the development of the cell-wail, and arise from the spindle fibres, all of which may be continued as connecting threads (endosperm of Tamus communis), or part of them may be overlaid by cellulose lamellae (endosperm of Lilium Martagon), or they may be all overlaid as in pollen mother-cells and pollen grains of Helleborus foetidus.
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