On the keratose or horny sponges of commerce.

On the keratose or horny sponges of commerce by James Scott Bowerbank Download PDF EPUB FB2

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Keratose definition, having a skeleton formed of horny fibers, as certain sponges. See more. Keratose definition: (esp of certain sponges) having a horny skeleton | Meaning, pronunciation, translations and examples. Keratosis is an excessive growth of keratin, a skin protein, on the skin. There are a variety of causes which lead to several different types of keratosis.

The three most common types of keratosis are keratosis pilaris, actinic keratosis, and seborrheic keratosis. There are many others, most of which are rare or have an inherited (genetic) basis.

Keratose definition is - of or relating to the Keratosa. Keratosis (from kerat-+ -osis) is a growth of keratin on the skin or on mucous membranes stemming from keratinocytes, the prominent cell type in the specifically, it can refer to: actinic keratosis (also known as solar keratosis); chronic scar keratosis; hydrocarbon keratosis; keratosis pilaris (KP, also known as follicular keratosis); seborrheic keratosisSpecialty: Dermatology, medical genetics.

keratosis [ker″ah-to´sis] any horny growth, such as a wart or callosity. actinic keratosis a sharply outlined wartlike or keratotic growth, which may develop into a cutaneous horn, and may become malignant; it usually occurs in the middle aged or elderly and is due to excessive exposure to the sun.

Called also senile or solar keratosis. (See Atlas 3. Keratosis, any protuberance on the skin resulting from the overdevelopment of the horny outermost covering of the skin, or epidermis, the main constituent of which is the protein keratin, which is synthesized in special cells of the skin, the generally, keratosis is any skin disorder attended by horny growths.

The causes and lesions characteristic of keratotic skin disorders. Sponges are abundant and diverse on coral reefs, and play key functional roles; but virtually nothing is known of their dynamics.

This is the first report of coral reef sponge community dynamics. On the keratose or horny sponges of commerce / by James Scott Bowerbank ; read Janu Bowerbank, J.

(James Scott), [ Book, Microform: ]. Fossil record of Phanerozoic non-spicular sponges, beside of being important with respect to the lineage evolution per se, could provide valuable references for the investigation of Precambrian ancestral animal fossils.

However, although modern phylogenomic studies resolve non-spicular demosponges as the sister group of the remaining spiculate demosponges, the fossil record of the Cited by: In the sponges of commerce (Spongia) the skeleton is simply composed of these reticulated horny fibres; but in most of the "horny" sponges (such as Halichondria, Spongilla, etc.), we find in addition numerous siliceous bodies which partly strengthen the horny fibres, and are partly scattered through the sarcode.

These so-called "spicules" (figs. Detecting an actinic keratosis (AK) early gives you the opportunity to treat the lesion and prevent skin cancer before it starts. When diagnosed promptly, almost all actinic keratoses (plural) can be successfully removed. Left untreated, some AKs may progress to squamous cell carcinoma (SCC).

Flat to slightly raised, scaly, crusty, rough. We Need to Talk Some More About Your Dirty Sponges You don’t have to be afraid of your sponge, experts say, but it’s wise to take a few precautions in the kitchen, including discarding it Author: Joanna Klein.

Keratoses a group of noninflammatory diseases of the skin of varied origins whose common manifestation is thickening of the horny layer. The development of keratosis is caused either by hyperplasia (intensified growth) of the horny layer or by increased cohesiveness (knitting) of the cells of that layer; with keratosis the sloughing of scales occurs.

Define keratosic. keratosic synonyms, keratosic pronunciation, keratosic translation, English dictionary definition of keratosic. keratoses Excessive growth of horny tissue of the skin.

ker′atot′ic adj. or adj of, showing, or relating to keratosis. This page was last edited on 3 Julyat Files are available under licenses specified on their description page. All structured data from the file and property namespaces is available under the Creative Commons CC0 License; all unstructured text is available under the Creative Commons Attribution-ShareAlike License; additional terms may ce of: disease.

Actinic keratoses usually appear on skin that's exposed to the sun. Common places to get them are the: NAS Medical / Alamy Stock Photo. The patches can be: red, pink, brown or skin-coloured.

rough or scaly (like sandpaper) flat or stick out from the skin (similar to warts) a few millimetres to a few centimetres across. When to see your GP. Keratoses adminsos. 22nd November Keratosis are medical conditions which are characterized by the formation of growths of different shapes, sizes and varying colors on the skin.

There are many causes of skin keratosis which may be either avoidable or unavoidable. There are also several types of keratosis. This banner text can have markup. web; books; video; audio; software; images; Toggle navigation.

Keratoses adminsos. 6th January Have you heard of keratosis before? I am sure that you must have come across that term. The one that is being referred to is the plural form of the keratosis you have heard about severally.

The plural term comes in; considering the .L92 Granulomatous disorders of skin and subcutane. L Granuloma annulare; L Necrobiosis lipoidica, not elsewhere classifi ; L Granuloma faciale [eosinophilic granuloma of ; L Foreign body granuloma of the skin and subcut ; L Other granulomatous disorders of the skin and ; L Granulomatous disorder of the skin and subcut.Your Care Instructions.

Seborrheic keratoses are raised skin growths that look scaly or warty. They usually look like they were stuck onto the skin. They most often grow in groups on the back or chest and are more common in older people. A seborrheic keratosis can be tan or dark brown. A seborrheic keratosis is not a mole and is almost always.