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Hyaloid
A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is named after its glassy appearance on fresh gross pathology. On light microscopy of H&E stained slides, the extracellular matrix of hyaline cartilage looks homogeneously pink, and the term "hyaline" is used to describe similarly homogeneously pink material besides the cartilage. Hyaline material is usually acellular and proteinaceous. For example, arterial hyaline is seen in aging, high blood pressure, diabetes mellitus and in association with some drugs (e.g. calcineurin inhibitors). It is bright pink with PAS staining. Ichthyology and entomology In ichthyology and entomology, ''hyaline'' denotes a colorless, transparent substance, such as unpigmented fins of fishes or clear insect wings. Resh, Vincent H. and R. T. Cardé, Eds. Encyc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyaloid Canal
Hyaloid canal (Cloquet's canal and Stilling's canal) is a small transparent canal running through the vitreous body from the optic nerve disc to the lens. It is formed by an invagination of the hyaloid membrane, which encloses the vitreous body. In the fetus, the hyaloid canal contains a prolongation of the central artery of the retina, the hyaloid artery, which supplies blood to the developing lens. Once the lens is fully developed the hyaloid artery retracts and the hyaloid canal contains lymph Lymph (from Latin, , meaning "water") is the fluid that flows through the lymphatic system, a system composed of lymph vessels (channels) and intervening lymph nodes whose function, like the venous system, is to return fluid from the tissues .... The hyaloid canal appears to have no function in the adult eye, though its remnant structure can be seen. Contrary to initial belief, the hyaloid canal does not facilitate changes in the volume of the lens. The lens volume changes by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrograph
A micrograph or photomicrograph is a photograph or digital image taken through a microscope or similar device to show a magnified image of an object. This is opposed to a macrograph or photomacrograph, an image which is also taken on a microscope but is only slightly magnified, usually less than 10 times. Micrography is the practice or art of using microscopes to make photographs. A micrograph contains extensive details of microstructure. A wealth of information can be obtained from a simple micrograph like behavior of the material under different conditions, the phases found in the system, failure analysis, grain size estimation, elemental analysis and so on. Micrographs are widely used in all fields of microscopy. Types Photomicrograph A light micrograph or photomicrograph is a micrograph prepared using an optical microscope, a process referred to as ''photomicroscopy''. At a basic level, photomicroscopy may be performed simply by connecting a camera to a microscope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diabetes Mellitus
Diabetes, also known as diabetes mellitus, is a group of metabolic disorders characterized by a high blood sugar level ( hyperglycemia) over a prolonged period of time. Symptoms often include frequent urination, increased thirst and increased appetite. If left untreated, diabetes can cause many health complications. Acute complications can include diabetic ketoacidosis, hyperosmolar hyperglycemic state, or death. Serious long-term complications include cardiovascular disease, stroke, chronic kidney disease, foot ulcers, damage to the nerves, damage to the eyes, and cognitive impairment. Diabetes is due to either the pancreas not producing enough insulin, or the cells of the body not responding properly to the insulin produced. Insulin is a hormone which is responsible for helping glucose from food get into cells to be used for energy. There are three main types of diabetes mellitus: * Type 1 diabetes results from failure of the pancreas to produce enough insulin due ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Infant Respiratory Distress Syndrome
Infantile respiratory distress syndrome (IRDS), also called respiratory distress syndrome of newborn, or increasingly surfactant deficiency disorder (SDD), and previously called hyaline membrane disease (HMD), is a syndrome in premature infants caused by developmental insufficiency of pulmonary surfactant production and structural immaturity in the lungs. It can also be a consequence of neonatal infection and can result from a genetic problem with the production of surfactant-associated proteins. IRDS affects about 1% of newborns and is the leading cause of death in preterm infants. Data has shown the choice of elective caesarean sections to strikingly increase the incidence of respiratory distress in term infants; dating back to 1995, the UK first documented 2,000 annual caesarean section births requiring neonatal admission for respiratory distress. The incidence decreases with advancing gestational age, from about 50% in babies born at 26–28 weeks to about 25% at 30–31 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyaloserositis
In pathology, hyaloserositis is the coating of an organ with a fibrous hyaline,Hyaloserositis. Online Medical Dictionary. URLhttp://cancerweb.ncl.ac.uk/cgi-bin/omd?hyaloserositis Accessed on: June 21, 2008. resulting from inflammation of the serous membrane ( serositis) covering the organ. The spleen is commonly affected and often referred to as sugar-coated spleen. The liver and heart are also sometimes affected and referred to as frosted liver (or sugar-coated liver) and frosted heart respectively. Hyaloserositis of the spleen is usually considered benign, i.e. it does not necessitate any treatment. See also *Hyaline A hyaline substance is one with a glassy appearance. The word is derived from el, ὑάλινος, translit=hyálinos, lit=transparent, and el, ὕαλος, translit=hýalos, lit=crystal, glass, label=none. Histopathology Hyaline cartilage is ... * Serositis References {{reflist Gross pathology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyalopilitic
Hyalopilitic is a textural term used in petrographic classification of volcanic rocks. Specifically, hyalopilitic refers to a volcanic rock groundmass, which is visible only under magnification with a petrographic microscope, that contains a mixture of very fine-grained mineral crystals either mixed with natural volcanic glass, or surrounded by thin bands of volcanic glass. See also * List of rock textures * Rock microstructure Rock microstructure includes the texture and small-scale structures of a rock. The words ''texture'' and ''microstructure'' are interchangeable, with the latter preferred in modern geological literature. However, ''texture'' is still acceptable ... * Obsidian Igneous petrology Volcanic rocks {{Volcanology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyaline Arteriolosclerosis
Arteriolosclerosis is a form of cardiovascular disease involving hardening and loss of elasticity of arterioles or small arteries and is most often associated with hypertension and diabetes mellitus. Types include hyaline arteriolosclerosis and hyperplastic arteriolosclerosis, both involved with Blood vessel, vessel wall thickening and lumen (anatomy), luminal narrowing that may cause downstream ischemic injury. The following two terms whilst similar, are distinct in both spelling and meaning and may easily be confused with arteriolosclerosis. * Arteriosclerosis is any hardening (and loss of elasticity) of medium or large arteries (from the Greek ''arteries, arteria'', meaning ''artery'', and ''wikt:sclerosis, sclerosis'', meaning ''hardening'') * Atherosclerosis is a hardening of an artery specifically due to an atheroma, atheromatous plaque. The term ''atherogenic'' is used for substances or processes that cause atherosclerosis. Hyaline arteriolosclerosis Also arterial hyalinos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vincent H
Vincent ( la, Vincentius) is a male given name derived from the Roman name Vincentius, which is derived from the Latin word (''to conquer''). People with the given name Artists *Vincent Apap (1909–2003), Maltese sculptor *Vincent van Gogh (1853–1890), Dutch Post-Impressionist painter *Vincent Munier (born 1976), French wildlife photographer Saints *Vincent of Saragossa (died 304), deacon and martyr, patron saint of Lisbon and Valencia *Vincent, Orontius, and Victor (died 305), martyrs who evangelized in the Pyrenees * Vincent of Digne (died 379), French bishop of Digne *Vincent of Lérins (died 445), Church father, Gallic author of early Christian writings *Vincent Madelgarius (died 677), Benedictine monk who established two monasteries in France *Vincent Ferrer (1350–1419), Valencian Dominican missionary and logician *Vincent de Paul (1581–1660), Catholic priest who served the poor *Vicente Liem de la Paz (Vincent Liem the Nguyen, 1732–1773), Vincent Duong, Vinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Entomology
Entomology () is the scientific study of insects, a branch of zoology. In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids, myriapods, and crustaceans. This wider meaning may still be encountered in informal use. Like several of the other fields that are categorized within zoology, entomology is a taxon-based category; any form of scientific study in which there is a focus on insect-related inquiries is, by definition, entomology. Entomology therefore overlaps with a cross-section of topics as diverse as molecular genetics, behavior, neuroscience, biomechanics, biochemistry, systematics, physiology, developmental biology, ecology, morphology, and paleontology. Over 1.3 million insect species have been described, more than two-thirds of all known species. Some insect species date back to around 400 million years ago. They have many kinds of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ichthyology
Ichthyology is the branch of zoology devoted to the study of fish, including bony fish ( Osteichthyes), cartilaginous fish ( Chondrichthyes), and jawless fish ( Agnatha). According to FishBase, 33,400 species of fish had been described as of October 2016, with approximately 250 new species described each year. Etymology The word is derived from the Greek words ἰχθύς, ''ikhthus'', meaning "fish"; and λογία, ''logia'', meaning "to study". History The study of fish dates from the Upper Paleolithic Revolution (with the advent of "high culture"). The science of ichthyology was developed in several interconnecting epochs, each with various significant advancements. The study of fish receives its origins from humans' desire to feed, clothe, and equip themselves with useful implements. According to Michael Barton, a prominent ichthyologist and professor at Centre College, "the earliest ichthyologists were ''hunters and gatherers'' who had learned how to obtain the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephonodes Hylas 2011-11-06
''Cephonodes'' is a genus of moths in the family Sphingidae. (''Cephanodes'' is a frequent misspelling.) The genus was erected by Jacob Hübner in 1819. Species *''Cephonodes apus'' (Boisduval, 1833) *'' Cephonodes armatus'' Rothschild & Jordan, 1903 *'' Cephonodes banksi'' Clark 1923 *''Cephonodes hylas'' (Linnaeus, 1771) *'' Cephonodes janus'' Miskin, 1891 *'' Cephonodes kingii'' (W. S. Macleay, 1826) *'' Cephonodes leucogaster'' Rothschild & Jordan, 1903 *'' Cephonodes lifuensis'' Rothschild, 1894 *'' Cephonodes novebudensis'' Clark, 1927 *'' Cephonodes picus'' (Cramer, 1777) *'' Cephonodes rothschildi'' Rebel, 1907 *'' Cephonodes rufescens'' Griveaud, 1960 *'' Cephonodes santome'' Pierre, 2002 *'' Cephonodes tamsi'' Griveaud, 1960 *'' Cephonodes titan'' Rothschild, 1899 *'' Cephonodes trochilus'' (Guerin-Meneville, 1843) *'' Cephonodes woodfordii'' Butler, 1889 *'' Cephonodes xanthus'' Rothschild & Jordan, 1903 Gallery Cephonodes banksi johani MHNT CUT 2010 0 137 Punkak Pal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Periodic Acid-Schiff Stain
Periodicity or periodic may refer to: Mathematics * Bott periodicity theorem, addresses Bott periodicity: a modulo-8 recurrence relation in the homotopy groups of classical groups * Periodic function, a function whose output contains values that repeat periodically * Periodic mapping Physical sciences * Periodic table of chemical elements * Periodic trends, relative characteristics of chemical elements observed * Redshift periodicity, astronomical term for redshift quantization Other uses * Fokker periodicity blocks, which mathematically relate musical intervals * Periodic acid, a compound of iodine * Principle of periodicity, a concept in generally accepted accounting principles * Quasiperiodicity, property of a system that displays irregular periodicity See also * Aperiodic (other) * Cycle (other) * Frequency (other) * Period (other) * Periodical * Seasonality In time series data, seasonality is the presence of variations that occur a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
