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Topic: Integument


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In the News (Tue 8 Dec 09)

  
  Equine Podiatry | Dr. Stephen O'Grady, veterinarians, farriers, books, articles
The integument of the foot is divided into 5 types, perioplic, coronary, laminar, solar and cuneate that are continuous with one another but the boundaries are abrupt.
In fact, because the integument of the foot does not have adnexal epidermal structures that project into the dermis and subcutaneous tissue except for the merocrine glands present in the frog, a direct corollary of the classical partial thickness skin wound does not exist in the foot.
Lacerations of the integument of the foot are less common than they are in skin because the rigid nature of the stratum corneum causes the hoof to fracture rather than tear, which usually causes the tissues to avulse from the underlying structures.
www.equipodiatry.com /112403.html   (4371 words)

  
 X. The Organs of the Senses and the Common Integument. 1b. The Organ of Smell. Gray, Henry. 1918. Anatomy of the Human ...
Above, it is connected by fibrous tissue to the lateral cartilage and front part of the cartilage of the septum; below, it falls short of the margin of the naris, the ala being completed by fatty and fibrous tissue covered by skin.
The integument of the dorsum and sides of the nose is thin, and loosely connected with the subjacent parts; but over the tip and alæ it is thicker and more firmly adherent, and is furnished with a large number of sebaceous follicles, the orifices of which are usually very distinct.
The arteries of the external nose are the alar and septal branches of the external maxillary, which supply the alæ and septum; the dorsum and sides being supplied from the dorsal nasal branch of the ophthalmic and the infraorbital branch of the internal maxillary.
www.bartleby.com /107/223.html   (3033 words)

  
 Journal of Nanobiotechnology | Full text | Surface structure, model and mechanism of an insect integument adapted to be ...
Easy bleeding differs from reflex bleeding in that, first, almost the whole body integument is potentially involved in the phenomenon, and second, an external force is necessary to exhibit the phenomenon [4].
In species where the integument was less hydrophobic, the diameter of the droplet on it ranged from 1.5 to 1.9 mm (2 μl droplet) and from 2.0 to 2.6 mm (4 μl).
When a predator, typically an insect with biting-chewing mandibles [10], bites into the integument of a sawfly larva at a given spot, the best for the larva is to keep the deterrent haemolymph spatially concentrated at this spot.
www.jnanobiotechnology.com /content/2/1/10   (4293 words)

  
 Ovule Development Mutants
There is little subsequent development of the outer integument, but the inner integument appears to develop normally (Gaiser et al., 1995, Baker et al., 1997).
The outer integument is still reduced, but the inner integument varies from being reduced to exhibiting extreme hypertrophy (Lang et al., 1994).
In contrast, in sup ovules asymmetric formation of the outer integument primordium is followed by uniform extension of the integument around the circumference of the ovules (Gaiser et al., 1995).
www.mcb.ucdavis.edu /faculty-labs/gasser/Ovule_Mutants.html   (1105 words)

  
 integument --  Encyclopædia Britannica
The integument delimits the body of the organism, separating it from the environment and protecting it from foreign matter.
The parasitic flukes have a relatively thick integument, which bears many spines and sensory papillae, an apical membrane that is thrown into ridges and pits, and microvilli.
Amphioxus represents chordate integument at its simplest: an epidermis, consisting of one layer of columnar or cuboidal epithelial cells and scattered mucous cells, covered by a thin cuticle, and a thin dermis of soft connective...
www.britannica.com /eb/article?tocId=9106315&query=adaptive%20systems&ct=eb   (355 words)

  
 [No title]   (Site not responding. Last check: 2007-10-20)
The integument is comprised of three layers: the epicuticle, the procuticle, and the epidermis.
The epicuticle is a thin outer layer, somewhat analogous to the cuticle of the plant leaf, and is responsible for waterproofing.
The procuticle thicker that the epicuticle and is largely responsible for the structural integrity of the integument.
jlibsch.web.wesleyan.edu /Ant/Morphology/Integument.html   (367 words)

  
 Integument   (Site not responding. Last check: 2007-10-20)
The integument of fish is characterized by structures that help the organism maintain its water balance.
The integument is modified into horny scales in snakes and lizards.
The, defining characteristic of bird integument is feathers, which are derived originally from scales, so that scales and feathers am homologous (Figure 6.14, p.
acad.udallas.edu /biology/Brown/Anatomy/05Integument.htm   (1815 words)

  
 integument - Hutchinson encyclopedia article about integument
A small hole at one end, the micropyle, allows a pollen tube to penetrate through to the egg during fertilization.
But then I perceived the re- semblance of its grey-brown, shiny, leathery integument to that of the other sprawling bodies beyond, and the true nature of this dexterous workman dawned upon me.
The War Of The Worlds by Wells, H.G. View in context
encyclopedia.farlex.com /integument   (200 words)

  
 Integument - Encyclopedia.WorldSearch   (Site not responding. Last check: 2007-10-20)
An account of two successful operations for restoring a lost nose from the integuments of the forehead
Clothes;: An essay upon the nature and significance of the natural and artificial integuments worn by men and women,
Integument, Pigments, and Hormonal Processes : Volume 9: Integument, Pigments and Hormonal Processes (Biology of Curstacea, Vol 9)
encyclopedia.worldsearch.com /integument.htm   (116 words)

  
 Comparative Anatomy Topic 6 - Integument   (Site not responding. Last check: 2007-10-20)
The integument is the largest organ in the body and includes the skin, hair, and associated glands.
The integument is a complex structure consisting of the ectodermal epidermis and the mesodermal dermis.
And, just to be confusing, during development, neural crest ectoderm migrates through the area between the ectoderm and the mesoderm to produce the interesting structures like dermal bone and chromatophores.
www.auburn.edu /academic/classes/zy/0301/Topic6/Topic6.html   (2218 words)

  
 Developmental morphology of ovules and seeds of Nymphaeales -- Yamada et al. 88 (6): 963 -- American Journal of Botany
basal angiosperms the outer integument is sharply asymmetric
The micropyle is endostomic or composed of the inner integument
of the outer integument (Gasser, Broadhvest, and Hauser, 1998
www.amjbot.org /cgi/content/full/88/6/963   (4260 words)

  
 Ephedra Ovules   (Site not responding. Last check: 2007-10-20)
Note that the nucellus, inner integument and "outer integument" are all in the same plane.
Close-up of the inner integument (the circular ring of cells) of a "stage 7" Ephedra ovule.
The "outer integument" has been removed from this specimen for better visualization of the inner integument and nucellus.
calvin.linfield.edu /~cgaiser/ephedraovules.html   (158 words)

  
 Dunn, Michael T.*, Gar W. Rothwell, and Gene Mapes.   (Site not responding. Last check: 2007-10-20)
The genus Rhynchosperma Taylor and Eggert was erected for permineralized seeds that are externally indistinguishable from the seed cast morphogenus Rhynchogonium.
The apical portion of the integument is ribbed and non-vascularized; the nucellus is fused to the integument and apically differentiated into a dome shaped pollen receiving structure.
The new Fayetteville specimens are similar to Rhynchosperma in external shape, two layered integument, number of ribs, and the presence of a dome shaped pollen receiving structure.
www.botany2001.org /section7/abstracts/11.shtml   (315 words)

  
 key
Usually larger, 8-12 mm, elongate; integument usually rufocastaneus with metallic cupreous sheen, occasionally with viridescent reflections; coastal coniferous forests of Oregon and northern California.
Integument piceous, frequently with viridescent reflection; punctures moderate to dense; pubescence cinereous with dark brunneous patches; montane western U.S., Canada.
Integument aeneous to cupreous, occasionally with viridescent reflections; punctures fine to moderately dense, moderately to sparsely distributed; pubescence mixed rufobrunneous and cinereous; western U.S. and Canada.
nathist.sdstate.edu /SMIRCOL/Byrrhidae/key.htm   (1204 words)

  
 WUSCHEL signaling functions in interregional communication during Arabidopsis ovule development -- Groß-Hardt et ...
The corresponding wus ovule is naked because of the lack of integuments.
At the time point of integument initiation (asterisk in C) ANT mRNA is found in the chalaza of wild-type ovules and the pattern obtained for wus ovules is indistinguishable from the wild-type expression.
integuments in the basal region of the ovule (Fig.
www.genesdev.org /cgi/content/full/16/9/1129   (5987 words)

  
 Integument: Fluoropolymer coatings, sealers: ECTFE coatings, FEP & PVDF film sheets, elastomeric coatings and linings, ...
Integument Technologies, Inc. is a science-based developer and manufacturer of engineered fluoropolymer systems of linings, films and coatings for unique, extreme temperature and chemical service.
Our proprietary equipment and processes are custom designed and built for Integument's unique cold gas plasma surface modification - the science that makes it possible to apply adhesives and coatings that bond permanently to surfaces of any fluoropolymer film including FEP (Teflon®), ECTFE, MFA, PTFE, and PFA.
Integument offers world-class intellectual property, custom plasma equipment design and construction, and state-of-the-art flouropolymer technologies.
www.integument.com /science/main.php   (301 words)

  
 CVA Integument   (Site not responding. Last check: 2007-10-20)
(198) the integument (or skin) is a complex organ.
Integument is the boundary between the organism and the environment.
[Antlers are outgrowths of the skull beneath the integument, and are shed and replaced annually.
webpages.marshall.edu /~hurlburt/310lec8.html   (847 words)

  
 Integument
to understand how the various components of the integument fulfill their physiological roles.
The integument consists of the skin and its appendages (e.g., glands, hair and nails).
Skin, one of the largest organs in the body (16% by weight), is composed of an epithelium, the epidermis, and an underlying connective tissue, the dermis.
ect.downstate.edu /courseware/histomanual/integument.html   (1681 words)

  
 Effects of extracellular purines on ion transport across the integument of Hirudo medicinalis -- Schnizler et al. 205 ...
Effects of extracellular purines on ion transport across the integument of Hirudo medicinalis -- Schnizler et al.
of the dorsal integument (subclitellar region) was mounted in
% in APW-adapted integuments, whereas it increased in HSW-adapted
jeb.biologists.org /cgi/content/full/205/17/2705   (4071 words)

  
 INNER NO OUTER regulates abaxial- adaxial patterning in Arabidopsis ovules -- Villanueva et al. 13 (23): 3160 -- Genes ...
The nucellus, funiculus, and inner and outer integument primordia are visible.
The outer integument on the abaxial side of the ovule is absent.
Initiation of the outer integuments on the abaxial sides is apparent (arrows).
www.genesdev.org /cgi/content/full/13/23/3160   (6199 words)

  
 Equine Podiatry | Dr. Stephen O'Grady, veterinarians, farriers, books, articles
This is probably because little time is spent relating the principles of healing to treatment foot wounds in already overcrowded college curricula, because of the morphologic differences between the integument of the foot and skin is confusing, and experience with management of such wounds in practice is less common.
An example of such a wound would occur is a horse kicked against an edge of sheet metal.
However, most clinicians would recommend systemic antibiotics if the wound breaches the integument until the entire surface of the wound is covered by granulation tissue, and most would consider systemic antibiotics imperative if a joint, tendon sheath or bursa is involved.
www.equipodiatry.com /footwund.htm   (4084 words)

  
 Ectodermal Derivatives V
The integument is made up of two layers: the epidermis (an example of stratified squamous epithelium, recall) and the dermis (an example of dense irregular connective tissue).
This page shows micrograph sections of the integument of the frog and the mammal.
In the frog, the dermis is subdivided into two layers: the stratum spongiosum and the stratum compactum.
www.uoguelph.ca /zoology/devobio/210labs/ecto5.html   (630 words)

  
 The Arabidopsis ACR4 gene plays a role in cell layer organisation during ovule integument and sepal margin development ...
(I) In mature ovules expression is detected in the outer cell layer of the funiculus (f), the outer integument (oi) inner integument (ii) and endothelium (en).
In the mutant, the irregular initiation of integument outgrowth is visible, with at least two outgrowths observed in one region of outer integument initiation (asterisks), whereas other regions have no outgrowths.
In H, the retardation of outer integument (arrow) growth has left an open micropyle within which the inner integument (arrowhead) and nucellus are visible.
dev.biologists.org /cgi/content/full/130/18/4249   (6361 words)

  
 * Integument - (Disease): Definition
It is known as the integumentary system and it is your body's first line of defense against disease...
Pieces of the spine’s integument (coating) may remain in the wound.
Copstead, Lee-Ellen C. "Alterations in the Integument." In Perspectives on Pathophysiology.
en.mimi.hu /disease/integument.html   (144 words)

  
 Sponges (from integument) --  Encyclopædia Britannica
Sponges have a simple epithelium, known as the pinacoderm, which both covers the external surfaces and lines the internal waterways.
More results on "Sponges (from integument)" when you join.
At the same time it gives communication with the outside, enabling an organism to live in a particular environment.
www.britannica.com /eb/article-33038?tocId=33038   (748 words)

  
 SUPERMAN attenuates positive INNER NO OUTER autoregulation to maintain polar development of Arabidopsis ovule outer ...
integument growth from the adaxial side of the ovule primordium.
ovule, and to the abaxial layer of the outer integument.
integument in the current study is consistent with this hypothesis.
dev.biologists.org /cgi/content/full/129/18/4281   (5950 words)

  
 Additional observations on Rhynchosperma quinnii (Medullosaceae): a permineralized ovule from the Chesterian (Upper ...
with a two-layered integument and vascularization in the integument
The apical portion of the integument is ribbed; the nucellus
of tracheids, the integument is vascularized by discrete bundles,
www.amjbot.org /cgi/content/abstract/89/11/1799   (315 words)

  
 Cat Vitamins - Cats Only - Skin and Coat Problems - Cats Only Nutritional Supplements for Felines - Cat Vitamins and ...   (Site not responding. Last check: 2007-10-20)
The fur coat of any animal is classified as a portion of the organ known as integument (skin).
Since the skin is arguably the least essential of all the organs that are essential to the animal’s survival, in cases of poor nutrition, it is the first thing that suffers, and the last thing to recover.
The skin and fur of an animal often acts as a "mirror" of what is occurring nutritionally in the animal as a whole.
www.cats-only.com /coat.html   (443 words)

  
 Regulation of Ovule Development -- Skinner et al. 16 (Supplement 1): S32 -- THE PLANT CELL
Before integument initiation, WUS and ANT, which are expressed in close proximity, induce integument formation at the distal boundary of ANT expression, whereas NZZ determines the distal extent of ANT expression.
Just before integument initiation INO expression is activated on the gynobasal side of the ovule at the base of the region that will give rise to the outer integument.
LUG, SEU, and TSL are required for the coordinated growth of the inner and outer integuments, ensuring that the outer integument supersedes and encloses the inner integument of an ovule at anthesis.
www.plantcell.org /cgi/content/full/16/suppl_1/S32   (8235 words)

  
 Cycad biology: Dinosaur Food and Maiden Hair
The megasporophyll produces an integument around the megasporangium (which is sometimes called the nucellus).
The pollen is carried by the wind to the integument of the ovule on the megasporophyll.
To have a seed you need three parts: a seed coat (the integument), storage tissue (the megagametophyte), and a dormant embryo.
www.plantapalm.com /vce/biology/dinofood.htm   (749 words)

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