up spicule in Wiktionary, the free dictionary. Spicules are any of various small needle-like anatomical structures occurring in organisms Spicule may...

Spicules are structural elements found in most sponges. The meshing of many spicules serves as the sponge's skeleton and thus it provides structural support...

In solar physics, a spicule, also known as a fibril or mottle, is a dynamic jet of plasma in the Sun's chromosphere about 300 km in diameter. They move...

nematodes, spicules, also known as copulatory spicules, are needle-like mating structures found only in males. Male nematodes may have one or two spicules which...

Spicules are tiny glass flakes which are formed during the manufacture of glass vials. A glass tube is extruded at a constant rate and a jet of water applied...

are characterized by spicules made of calcium carbonate, in the form of high-magnesium calcite or aragonite. While the spicules in most species are triradiate...

species have silica spicules, whereas some species have calcium carbonate exoskeletons. Calcareous sponges have calcium carbonate spicules and, in some species...

species Monorhaphis chuni, a sponge known for creating a single giant basal spicule (G.B.S.) to anchor the sponge in the sediments. The species was described...

are sponges with a skeleton made of four- and/or six-pointed siliceous spicules, often referred to as glass sponges. They are usually classified along...

their skeletons out of silica, which forms a unique lattice structure of spicules. The sponges are usually between 10 cm (3.9 in) and 30 cm (12 in) tall...

made of diffuse meshworks of calcite/silica structural elements called spicules, and echinoderms have a dermal calcite endoskeleton known as ossicles....

osteoid, which increases the size of the spicule. As the spicules continue to grow, they fuse with adjacent spicules and this results in the formation of...

they differ at the spicule level. The following spicules are present in this species: Three distinct size classes of tylostyles (spicule with a point at...

This is a list of small shelly fossils of prehistoric marine animals, ordered by their type. Namacalathus Yochelsoniella Elements of a scleritome, resembling...

morphologically indistinguishable from Enterobius vermicularis except the spicule size. Throughout this article, the word "pinworm" refers to Enterobius...

Osteoblast Osteoblasts (purple) rimming a bony spicule (pink - on diagonal of image). In this routinely fixed and decalcified (bone mineral removed) tissue...

long overlapping spicules arranged in parallel bundles. They radiate from a common center in continuation with the lowest spicules of the head, extending...

silica in the form of chert or siliceous skeletal fragments (such as sponge spicules, diatoms, or radiolarians). Fossils are also common in limestone. Limestone...

shell small shelly fauna scaly-foot snail shell estuary shells Sponge spicule Test Endoskeletons (bones) Vertebrate skeleton Bone mineral Ossification...

Their "skeletons" are made of spicules consisting of fibers of the protein spongin, the mineral silica, or both. Where spicules of silica are present, they...

atmosphere, just above the photosphere, is the thin chromosphere region, where spicules appear and stellar flares begin. Above this is the transition region, where...

altitude, but forms a kind of nimbus around chromospheric features such as spicules and filaments, and is in constant, chaotic motion. The transition region...

Cornwall, and in Russia, Germany and elsewhere. Sponges are known from spicules and anchor ropes, and include various forms such as the Calcispongea Cotyliscus...

colonial tunicate Catellocaula, and various Jurassic-aged and Tertiary-aged spicules tentatively attributed to ascidians.[citation needed]. Fossils of Echinodermata...

Supergranulation Granule Faculae Sunspot Ellerman bomb Chromosphere Plage Spicule Moreton wave Corona Transition region Coronal hole Coronal loop Coronal...

This may be calcified, forming structures such as shells, bones, and spicules. In contrast, the cells of other multicellular organisms (primarily algae...

of classes Demospongiae and Hexactinellida. They are characterized by spicules made out of silicon dioxide, unlike calcareous sponges. Individual siliachoates...

glycoproteins. This may be calcified to form structures like shells, bones, and spicules, a framework upon which cells can move about and be reorganized during...

The body plan of this species consists of a skeleton mainly made up of spicules. Monactinal tylosyles and a small fraction of diactinal oxeas make up the...

average male body size of the model organism C. elegans (824.74 μm). The spicules of C. castelli males possess a short, stout, evenly curved, complex morphology...