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Encyclopedia > Cuticle
Eponychium is the anatomical term for the human cuticle
Eponychium is the anatomical term for the human cuticle

In biology, the term cuticle or cuticula is given to to a variety of tough but flexible, non-mineral outer coverings of an organism, or part of an organism, that provide prtoection. They are non-homologous, differing in their origin, structure and chemical composition. ImageMetadata File history File links Fingernail_label. ... ImageMetadata File history File links Fingernail_label. ... The eponychium of a pinky, or little finger. ... This article or section does not cite any references or sources. ...


In zoology, the invertebrate cuticle or cuticula is a multi-layered structure outside the epidermis of many invertebrates, notably roundworms[1] and arthropods, where it forms an exoskeleton. It is formed by fatty acids with alcohols other than glycerol. Zoology (rarely spelled zoölogy) is the biological discipline which involves the study of non-human animals. ... Invertebrate is a term that describes any animal without a spinal column. ... It has been suggested that this article or section be merged with skin. ... Classes Adenophorea    Subclass Enoplia    Subclass Chromadoria Secernentea    Subclass Rhabditia    Subclass Spiruria    Subclass Diplogasteria The nematodes or roundworms (Phylum Nematoda from Greek (nema): thread + -ode like) are one of the most common phyla of animals, with over 20,000 different described species (over 15,000 are parasitic). ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ... An exoskeleton, in contrast to an endoskeleton, is an external anatomical feature that supports and protects an animals body. ... In chemistry, especially biochemistry, a fatty acid is a carboxylic acid (or organic acid), often with a long aliphatic tail (long chains), either saturated or unsaturated. ... Functional group of an alcohol molecule. ... Glycerol is a chemical compound with the formula HOCH2CH(OH)CH2OH. This colorless, odorless, viscous liquid is widely used in pharmaceutical formulations. ...


In human anatomy, cuticle refers to the dead layers of epidermal cells or keratinocytes that produce the horn protein keratin, to the strip of dead skin cells at the base and sides of the fingernail, the eponychium and also to the superficial layer of overlapping cells covering the hair shaft (cuticula pili) that locks the hair into its follicle. List of bones of the human skeleton Human anatomy is primarily the scientific study of the morphology of the adult human body. ... Look up Epidermis in Wiktionary, the free dictionary. ... Look up cell in Wiktionary, the free dictionary. ... The keratinocyte is the major cell type of the epidermis, making up about 90% of epidermal cells. ... Horn may refer to: horn (anatomy), a hollow, pointed projection of the skin of various animals Horn, Austria horn (diacritic), a diacritic mark used to indicate that a normally rounded vowel such as o or u is to be pronounced unrounded horn (instrument) horn, a slang term for any wind... A representation of the 3D structure of myoglobin, showing coloured alpha helices. ... Microscopy of keratin filaments inside cells. ... In zootomy and dermatology, skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. ... The eponychium of a pinky, or little finger. ... For the film, see Hair (film). ...

Epicuticular wax covering the cuticle of a Hosta leaf makes it hydrophobic. Water, unable to wet the cuticle, beads up and runs off, carrying dust and soluble contamination with it
Epicuticular wax covering the cuticle of a Hosta leaf makes it hydrophobic. Water, unable to wet the cuticle, beads up and runs off, carrying dust and soluble contamination with it

In botany, plant cuticles are protective waxy coverings produced by the epidermal cells of leaves, young shoots and all other aerial plant organs. The cuticles of plants function as permeability barriers for water and water-soluble materials. The cuticle helps to prevent plants from drying out. Cactus have very thick cuticles to help them survive in their arid climates. Plants that live in range of sea's spray also tend to have thicker cuticles, to protect them from the toxic effects of salt. Image File history File linksMetadata Size of this preview: 454 × 599 pixelsFull resolution (582 × 768 pixel, file size: 85 KB, MIME type: image/jpeg) Epicuticular wax crystals make a Hosta leaf surface hydrophobic. ... Image File history File linksMetadata Size of this preview: 454 × 599 pixelsFull resolution (582 × 768 pixel, file size: 85 KB, MIME type: image/jpeg) Epicuticular wax crystals make a Hosta leaf surface hydrophobic. ... In Botany the Plant cuticle is covered by epicuticular wax mainly consisting of straight-chain aliphatic hydrocarbons with a variety of substituted groups. ... Plant cuticles are a protective waxy covering produced only by the epidermal cells (Kolattukudy, 1996) of leaves, young shoots and all other aerial plant organs. ... Species Hosta atropurpurea Hosta capitata Hosta cathayana Hosta clausa Hosta crassifolia Hosta crispula Hosta decorata Hosta fluctuans Hosta fortunei Hosta gracillima Hosta helenioides Hosta hypoleuca Hosta ibukiensis Hosta jonesii Hosta kikutii Hosta lancifolia Hosta longipes Hosta longissima Hosta minor Hosta montana Hosta nakaiana Hosta nigrescens Hosta opipara Hosta plantaginea Hosta... In chemistry, hydrophobic or lipophilic species, or hydrophobes, tend to be electrically neutral and nonpolar, and thus prefer other neutral and nonpolar solvents or molecular environments. ... Pinguicula grandiflora Botany is the scientific study of plantlife. ... Plant cuticles are a protective waxy covering produced only by the epidermal cells (Kolattukudy, 1996) of leaves, young shoots and all other aerial plant organs. ... Look up Aerial in Wiktionary, the free dictionary Aerial may refer to— a dance move. ... Genera See Taxonomy of the Cactaceae A cactus (plural cacti, cactuses or cactus) is any member of the succulent plant family Cactaceae, native to the Americas. ...


References

  1. ^ About the roundworm cuticle

  Results from FactBites:
 
NationMaster - Encyclopedia: Cuticle (1036 words)
7), the cuticle and all of the internal organs are helically twisted (Higgins and Hirsh 1977).
The cuticle is a collagenous extracellular matrix (ECM) that is synthesized by an underlying ectodermal cell layer termed the hypodermis that surrounds the body of the animal (see Figure 1).
The annular pattern of the outer cuticle layer is established by invaginations in the surface of the hypodermal membrane and corresponds to the position of circumferential actin bundles which form early in lethargus.
Cuticle (5901 words)
The cuticle is the animal's exoskeleton and is important for maintenance of morphology, protection from and/or interaction with the external environment, and motility.
The cuticle lining the pharynx breaks, the old cuticle distends around the head, and the animal pulls back repeatedly to dislodge the cuticle remaining in the pharynx.
The cuticle surface of nematodes is a major focus of studies on the interactions of parasites with their hosts (Maizels et al.
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