Spicule definition biology

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August undefined, 2024

WebOther articles where siliceous spicule is discussed: sponge: Mineral skeletons: Siliceous spicules, found in the Demospongiae and in the Hexactinellida, are made essentially of silicic acid; they also contain some water, a small quantity of other compounds containing sodium, potassium, iron, and chlorine, and a small quantity of organic matter, called spiculin, … Webspic•ule (ˈspɪk yul) n. 1. a small, needlelike crystal, process, or the like. 2. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine …

Spicule Definition & Meaning - Merriam-Webster

WebOct 27, 2024 · Cartilage is a semi-rigid but flexible avascular connective tissue found at various sites within the body. With a pliable structure composed primarily of water, this tissue type is also extremely tough. Cartilage is found throughout the human body in areas such as the joints, nose, airway, intervertebral discs of the spine, and the ear. Webn. pl. spic·ules also spic·u·lae (-yə-lē) 1. A small needlelike structure or part, such as one of the silicate or calcium carbonate processes supporting the soft tissue of certain invertebrates, especially sponges. 2. Astronomy A spike-shaped formation emanating from the ionized gas of the solar photosphere. nerf epic pranks

Spicule definition of spicule by Medical dictionary

Web1 : developed by growth along a single axisused especially of a sponge spicule 2 : having monaxon spicules used of a sponge monaxon 2 of 2 noun " plural -s : something … WebWhat is a nail Spicule? Most often, the great toenail is affected. Improper cutting of the ingrown toenail may produce a spicule of nail, which can induce damage to the lateral nail fold when not completely removed [1]. With time, the spicule becomes embedded in the surrounding soft tissue where it may act like a foreign body. WebApr 1, 2024 · spicule ( plural spicules ) A sharp, needle-like piece. A tiny glass flake formed during the manufacture of glass vials ( biology) Any of many needle-like crystalline … its ship tracker

Gemmule - Structure formation and Sponge reproduction - BYJU

Spicule - definition of spicule by The Fre…

WebDefinitions of spicule. noun. small pointed structure serving as a skeletal element in various marine and freshwater invertebrates e.g. sponges and corals. synonyms: spiculum. Webspic·ule ( spik'yūl ), 1. A small needle-shaped body. 2. Accessory reproductive structure in male nematodes; useful in identification of species. [L. spiculum, dim. of spica, or spicum, … nerf eshop.czWebThe spicules or sclerites are definite bodies, having a crystalline appearance and consisting in general of simple spines or of spines radiating from a point. They have an axis of … its shivam

"WebNov 1, 2003 · We are beginning to understand the mechanisms of spicule secretion and the role of spicules and skeletal frameworks in the biology, ecology, and evolution of sponges. Molecular techniques and ecological experiments have demonstrated the genetic control of the process and the contribution of environmental factors to the expression of a sponge ... " - Spicule definition biology

Spicule definition biology

Spicules Definition & Meaning - Merriam-Webster

WebTerms in this set (7) Chicken liver sponge. Chondrilla caribbea, Small, sponge khaki or brownish lumps or lobes usually attached to seagrass blades. Spicules =. Spheraster. Style. White sponge, Geodia gibberosa, Massive irregular smooth sponges with clusters of small oscules in depressions. Common on shallow, inshore hard bottoms and seagrass ... Webspicule. structrual support of a sponge. pore. allows for water flow through a sponge, sponges obtain food by passing water through pores. collar cell. generates water flow …

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WebApr 1, 2011 · The central part of such spicule has the classic structure. There is a well-defined organic axial filament, located in the central channel. Around the filament are silica layers alternating with layers of the organic matrix. As a result, the macrostructural organization of the spicule is a system of the “cylinder-within-a-cylinder” type. Web(A) A sclerocyte (sc) of the homosclerophorid Corticium candelabrum, showing an intracellular spicule (sp1) and another (sp2) that appears to be in the process of extrusion …

Webspic·ule ( spik'yūl ), 1. A small needle-shaped body. 2. Accessory reproductive structure in male nematodes; useful in identification of species. [L. spiculum, dim. of spica, or spicum, a point] Farlex Partner Medical Dictionary © Farlex 2012 spicule (spĭk′yo͞ol) also spicula (-yə-lə) n. pl. spic·ules also spic·ulae (-yə-lē) Webnoun spicules Any of the short-lived, bright, dense gas jets continuously spurting up through the chromosphere of the sun: thought to be extensions of the photosphere's …

WebDec 11, 2015 · Spongin is a protein and it is secreted by cells called spongocytes. Although sponges have no muscle tissue and are sessile organisms, they do have muscle-like cells called myocytes. Myocytes surround canal openings and porocytes. These cells are able to contract in order to regulate water flow through the body. Webspic•ule (ˈspɪk yul) n. 1. a small, needlelike crystal, process, or the like. 2. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine …

Webspic•ule (ˈspɪk yul) n. 1. a small, needlelike crystal, process, or the like. 2. one of the small, hard, calcareous or siliceous bodies that serve as the skeletal elements of various marine and freshwater invertebrates. [1775–85; < Latin spīculum] spic′u•late` (-yəˌleɪt, -lɪt) adj.

WebLearn the definition of 'spicule'. Check out the pronunciation, synonyms and grammar. Browse the use examples 'spicule' in the great English corpus. its shitheedWebMar 6, 2015 · Spicules are part of the sponge’s “skeleton” and help to give it shape. There are a wide variety of spicules that can be seen in varying sponges. They can help us determine when different sponge species evolved because of their ability to be genetically determined. itsshoperWebSkeleton of either 1- or 4-rayed siliceous spicules, spongin fibres, or both; skeleton lacking in a few primitive genera; most abundant and widely distributed group of sponges; occur from intertidal regions to depths of about 5,500 m (18,000 ft) … its shortened by bit.lyWebspic·ule ( spik'yūl ), 1. A small needle-shaped body. 2. Accessory reproductive structure in male nematodes; useful in identification of species. [L. spiculum, dim. of spica, or spicum, … nerf erectile sectionneWebApr 20, 2024 · Spicules are tiny structures that are found on the body of the sponges. Spicules protect the body from predators. They also provide structural support to the organism. The larger spicules are called the megascleres and the smaller spicules are called the microscleres. Sponge Animation - Spicules Copy link Watch on its shipping terminalWebSpicules are structural elements found in most sponges. The meshing of many spicules serves as the sponge's skeleton and thus it provides structural support and potentially defense against predators. [1] Sponge … nerf erectionWebspicule noun spic· ule ˈspi- (ˌ)kyül 1 : a slender pointed usually hard body especially : one of the minute calcareous or siliceous bodies that support the tissue of various invertebrates (such as sponges) 2 : a spikelike short-lived prominence appearing close to the … nerf ethan and cole