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mondofacto - Online Medical Dictionary Category: Health and Medicine > Medical Dictionary Date & country: 26/01/2008, UK Words: 116197

perilympha
Synonym: perilymph. ... Origin: peri-+ L. Lympha, a clear fluid (lymph) ... (05 Mar 2000) ...

perilymphangitis
Inflammation of the tissues surrounding a lymphatic vessel. ... (05 Mar 2000) ...

perilymphatic duct
A fine canal connecting the perilymphatic space of the cochlea with the subarachnoid space. ... Synonym: ductus perilymphaticus, aqueductus cochleae, cochlear aqueduct. ... (05 Mar 2000) ...

perilymphatic space
Space between the bony and membranous portions of the labyrinth. ... Synonym: spatium perilymphaticum, cisterna perilymphatica. ... (05 Mar 2000) ...

perimenopause
The three to five year period prior to menopause during which oestrogen levels begin to drop.Studies have revealed that oestrogen replacement therapy may be more effective if started during perimenopause, particularly in preventing bone loss, which immediately accelerates as soon as overall oestrogen is reduced. For the bone-saving benefits of oest …

perimetric
1. Surrounding the uterus; relating to the perimetrium. ... Synonym: periuterine. ... Origin: G. Peri, around, + metra, uterus ... 2. Relating to the circumference of any part or area. ... Origin: G. Perimetros, circumference ... 3. Relating to perimetry. ... (05 Mar 2000) ...

perimetritic
Relating to or marked by perimetritis. ... (05 Mar 2000) ...

perimetritis
Synonym: metroperitonitis. ... Origin: perimetrium + G. -itis, inflammation ... (05 Mar 2000) ...

perimetrium
The serous (peritoneal) coat of the uterus. ... Synonym: tunica serosa uteri. ... Origin: peri-+ G. Metra, uterus ... (05 Mar 2000) ...

perimolysis
Decalcification of the teeth from exposure to gastric acid in individuals with chronic vomiting. ... Origin: perimylolysis, fr. Peri-+ G. Mylos, molar + lysis, loosening, dissolving, fr. Luo, to loosen ... (05 Mar 2000) ...

perimortem delivery
Synonym for postmortem delivery ... Extraction of the foetus after the death of its mother. ... Synonym: perimortem delivery. ... (05 Mar 2000) ...

perimuscular fibrosis
Fibrosis in the outer media of arteries, usually the renal arteries of young women, where it causes segmental stenosis and hypertension; a variety of fibromuscular dysplasia. ... Synonym: subadventitial fibrosis. ... (05 Mar 2000) ...

perimyelis
Synonym: endosteum. ... Origin: peri-+ G. Myelos, marrow ... (05 Mar 2000) ...

perimyelitis
Synonym for endosteitis ... Endostitis ... Inflammation of the endosteum or of the medullary cavity of a bone. ... Synonym: central osteitis, perimyelitis. ... Origin: endo-+ G. Osteon, bone, + -itis, inflammation ... (05 Mar 2000) ...

perimyocarditis
Simultaneous pericarditis and myocarditis usually due to the same aetiologic agent. ... (05 Mar 2000) ...

perimyositis
Inflammation of the loose cellular tissue surrounding a muscle. ... Synonym: perimysiitis, perimysitis. ... (05 Mar 2000) ...

perimysiitis
Perimysitis ... 1. Inflammation of the perimysium. ... Synonym: perimyositis. ... (05 Mar 2000) ...

perimysium externum
Synonym for epimysium ... The fibrous connective tissue envelope surrounding a skeletal muscle. ... Synonym: perimysium externum. ... Origin: epi-+ G. Mys, muscle ... (05 Mar 2000) ...

perimysium internum
In the older literature, a term referring to the connective tissue around secondary and tertiary fascicles and individual fibres and also to the supporting framework of the myocardium. ... (05 Mar 2000) ...

perinatal
<paediatrics> Pertaining to or occurring in the period shortly before and after birth, variously defined as beginning with completion of the twentieth to twenty eighth week of gestation and ending 7 to 28 days after birth. ... Origin: L. Natus = born ... (18 Nov 1997) ...

perinatal care
The care and management of the foetus and newborn infant in the perinatal period before, during, and after delivery. ... (12 Dec 1998) ...

perinatal death
An inclusive term referring to both stillborn infants and neonatal death's. ... (05 Mar 2000) ...

perinatal medicine
Synonym for perinatology ... The branch of medicine dealing with the foetus and infant during the perinatal period. The perinatal period begins with the twenty-eighth week of gestation and ends twenty-eight days after birth. ... (12 Dec 1998) ...

perinatal mortality
Mortality around the time of birth, conventionally limited to the period from 28 weeks gestation to one week postnatal. ... (05 Mar 2000) ...

perinatal mortality rate
The number of stillborn infants of 24 completed weeks or more plus the number of deaths occurring under 7 days of life divided by the number of stillborn infants of 24 weeks or more gestation plus all liveborn infants in the same population, regardless of the period of gestation. ... (05 Mar 2000) ...

perinatal torsion
Tends to be extravaginal type. ... (05 Mar 2000) ...

perinatal transmission
<microbiology, paediatrics> Transmission of a pathogen, such as HIV, from mother to baby during birth. ... See: Vertical Transmission. ... (09 Oct 1997) ...

perinate
An infant in the perinatal period. ... (05 Mar 2000) ...

perinatologist
An obstetrician who subspecialises in perinatology. ... (05 Mar 2000) ...

perinatology
The branch of medicine dealing with the foetus and infant during the perinatal period. The perinatal period begins with the twenty-eighth week of gestation and ends twenty-eight days after birth. ... (12 Dec 1998) ...

perineal
<anatomy> Pertaining to the perineum. ... (18 Nov 1997) ...

perineal artery
<anatomy, artery> Origin, internal pudendal; distribution, superficial structures of the perineum; anastomoses, external pudendal arteries. ... Synonym: arteria perinealis. ... (05 Mar 2000) ...

perineal body
central tendon of perineum ...

perineal flexure of rectum
The anteroposterior curve with convexity anteriorward of the last portion of the rectum. ... Synonym: flexura perinealis recti, anorectal angle, anorectal flexure. ... (05 Mar 2000) ...

perineal hernia
A hernia protruding through the pelvic diaphragm. ... Synonym: levator hernia, pudendal hernia. ... (05 Mar 2000) ...

perineal hypospadias
Hypospadias in which the urethral defect continues along the perineum to near the anus; the scrotum is usually cleft, the testes undescended, and the penis rudimentary. ... (05 Mar 2000) ...

perineal lithotomy
<procedure> Lithotomy in which the bladder is approached by an incision in the perineum. ... (05 Mar 2000) ...

perineal membrane
Synonym for inferior fascia of urogenital diaphragm ... The layer of fascia extending between the ischiopubic rami inferior to the sphincter urethrae and the deep transverse perineal muscles. ... Synonym: membrana perinei, fascia diaphragmatis urogenitalis inferior, Camper's ligament, ligamentum triangulare, perineal membrane, triangular ligament. …

perineal nerves
The superficial terminal branches of the pudendal nerve, supplying most of the muscles of the perineum (deep branch) as well as the skin of that region (superficial branch). ... Synonym: nervi perineales. ... (05 Mar 2000) ...

perineal raphe
The central anteroposterior line of the perineum, most marked in the male, being continuous with the raphe of the scrotum. ... Synonym: raphe perinei. ... (05 Mar 2000) ...

perineal region
The regio at the lower end of the trunk, anterior to the sacral region and posterior to the pubic region between the thighs; it is divided into the anal triangle posteriorly and the urogenital triangle anteriorly. ... Synonym: regio perinealis. ... (05 Mar 2000) ...

perineal section
Any section through the perineum, either lateral or median lithotomy or external urethrotomy. ... (05 Mar 2000) ...

perineal spaces
See: deep perineal space, superficial perineal space. ... (05 Mar 2000) ...

perineal surgery
An operation to remove the prostate gland through an incision made between the scrotum and the anus. ... (12 Dec 1998) ...

perineal urethrotomy
external urethrotomy ...

perineo-
The perineum. ... Origin: L. Fr. G. Perineos, perinaion ... (05 Mar 2000) ...

perineocele
<surgery> A hernia in the perineal region, either between the rectum and the vagina or the rectum and the bladder, or alongside the rectum. ... Origin: perineo-+ G. Kele, hernia ... (05 Mar 2000) ...

perineometer
<instrument> Instrument used to measure the strength of voluntary muscle contractions of the perineum. ... Origin: perineo-+ G. Metron, measure ... (05 Mar 2000) ...

perineoscrotal
<anatomy> Relating to the perineum and the scrotum. ... (05 Mar 2000) ...

perineostomy
<procedure> Urethrostomy through the perineum. ... Origin: perineo-+ G. Stoma, mouth ... (05 Mar 2000) ...

perineosynthesis
Rarely used term for perineoplasty in a case of extensive laceration of the perineum. ... (05 Mar 2000) ...

perineotomy
<procedure> Incision into the perineum to facilitate childbirth. ... See: episiotomy. ... (05 Mar 2000) ...

perineovaginal
Relating to the perineum and the vagina. ... (05 Mar 2000) ...

perineovaginal fistula
A fistula through the perineum, opening into the vagina. ... (05 Mar 2000) ...

perinephrial
Relating to the perinephrium. ... (05 Mar 2000) ...

perinephric
Surrounding the kidney in whole or part. ... Synonym: circumrenal, perirenal. ... (05 Mar 2000) ...

perinephric abscess
An abscess within Gerota's fascia but outside the renal capsule. ... (05 Mar 2000) ...

perinephrium
The connective tissue and fat surrounding the kidney. ... Origin: peri-+ G. Nephros, kidney ... (05 Mar 2000) ...

perineum
<anatomy> The region between the thighs, in the female between the vulva and the anus, in males, between the scrotum and the anus. ... (27 Sep 1997) ...

perineural
Surrounding a nerve. ... Origin: peri-+ G. Neuron, nerve ... (05 Mar 2000) ...

perineural anaesthesia
An obsolete term for anaesthesia produced by injection of an anaesthetic agent around a nerve. ... (05 Mar 2000) ...

perineural infiltration
Infiltration about a nerve. ... (05 Mar 2000) ...

perineuritis
Inflammation of the perineurium. ... See: adventitial neuritis. ... (05 Mar 2000) ...

perineuronal satellite
An oligodendroglia cell surrounding the neuron. ... (05 Mar 2000) ...

perinuclear cataract
A lamellar cataract in which the nucleus is clear but is surrounded by a ring of opacity. ... (05 Mar 2000) ...

perinuclear space
<cell biology> Gap 10-40 nm wide separating the two membranes of the nuclear envelope. ... (18 Nov 1997) ...

periocular
Synonym for circumocular ... Around the eye. ... Synonym: periocular, periophthalmic. ... Origin: circum-+ L. Oculus, eye ... (05 Mar 2000) ...

period
Drosophila gene regulating circadian rhythm. ... See: timeless. ... (18 Nov 1997) ...

periodic
Recurring at regular intervals of time. ... Origin: Gr. Periodikos ... (18 Nov 1997) ...

periodic acid
<chemical> Periodic acid (h5io6). A strong oxidizing agent. ... Chemical name: Periodic acid (H5IO6) ... (12 Dec 1998) ...

periodic acid Schiff reaction
<technique> A histochemical technique based on periodic acid oxidation of a substance containing the 1,2-glycol grouping. ... It is used for staining carbohydrates as the resulting dialdehyde reacts with Schiff reagent to form a coloured product. ... The adjacent hydroxyl groups are oxidized to form aldehydes by periodic acid (HIO4) and these a …

periodic acid Schiff stain
<technique> A histochemical technique based on periodic acid oxidation of a substance containing the 1,2-glycol grouping. ... It is used for staining carbohydrates as the resulting dialdehyde reacts with Schiff reagent to form a coloured product. ... Substances that can be demonstrated include carbohydrates, mucins, cartilage matrix, collagen, …

periodic arthralgia
A condition in which pain and swelling of one or more joints, most commonly the knee, occurs at regular intervals; there is sometimes abdominal pain, purpura, or oedema. ... Synonym: intermittent arthralgia. ... (05 Mar 2000) ...

periodic biopolymer
A biopolymer in which there are identical, repeating subunits. ... (05 Mar 2000) ...

periodic catatonia
Regularly reappearing phases of catatonic excitement. ... (05 Mar 2000) ...

periodic disease
A condition characterised by regularly recurring and intermittent episodes of fever, oedema, arthralgia, and gastric pain and vomiting, continuing for years without further development in otherwise healthy individuals. It is also called familial mediterranean fever. It does not refer to conditions in which episodes recur at regular intervals. ... (1 …

periodic fever
An obsolete term introduced to describe the intermittent febrile episodes seen in disease later recognised and named familial Mediterranean fever. ... (05 Mar 2000) ...

periodic filariasis
A form of filariasis in which microfilariae appear in the peripheral blood at regular 24-hr intervals; usually refers to the nocturnal periodicity of bancroftian filariasis. ... (05 Mar 2000) ...

periodic law
Synonym for Mendeleeff's law ... The properties of elements are periodical functions of their atomic weights; i.e., if the elements are arranged in the order of their atomic weights, every element in the series will be related in respect to its properties to the eighth in order before or after it. ... Synonym: periodic law. ... (05 Mar 2000) ...

periodic migrainous neuralgia
Recurrent facial pain and headache, more common in men than in women. ... Synonym: Harris' migraine. ... (05 Mar 2000) ...

periodic neutropenia
Neutropenia recurring at regular intervals (14 to 45 days), in association with various types of infectious diseases, e.g., stomatitis, cutaneous ulcers, furuncles, arthritis, and others. ... Synonym: cyclic neutropenia. ... (05 Mar 2000) ...

periodic oedema
Synonym for angioedema ... A vascular reaction involving the deep dermis or subcutaneous or submucal tissues, representing localised oedema caused by dilatation and increased permeability of the capillaries and characterised by development of giant wheals. ... (18 Nov 1997) ...

periodic ophthalmia
An acute iridocyclitis of horses, involving one or both eyes; it subsides only to recur at intervals of varying length and usually ends in blindness; the cause is uncertain but some have associated it with leptospires; does not appear to be contagious. ... Synonym: moon blindness. ... (05 Mar 2000) ...

periodic paralysis
Term for a group of diseases characterised by recurring episodes of muscular weakness or flaccid paralysis without loss of consciousness, speech, or sensation; attacks begin when the patient is at rest, and there is apparent good health between attacks. ... See: hyperkalaemic periodic paralysis, hypokalaemic periodic paralysis, normokalaemic periodi …

periodic peritonitis
familial paroxysmal polyserositis ...

periodic polyserositis
familial paroxysmal polyserositis ...

periodic system
The arrangement of the chemical elements in a definite order as indicated by their respective atomic numbers in such a way that groups of elements with similar chemical properties (similar valence shell electron number) are grouped together. ... See: Mendeleeff's law. ... (05 Mar 2000) ...

periodical
1. Of or pertaining to a period or periods, or to division by periods. 'The periodicaltimes of all the satellites.' (Sir J. Herschel) ... 2. Performed in a period, or regular revolution; proceeding in a series of successive circuits; as, the periodical motion of the planets round the sun. ... 3. Happening, by revolution, at a stated time; returning r …

periodical index
Useful as a subject approach to the contents of a periodical issuing an annual, biennial, quinquennial, decennial, etc., index. The heading is used for the overall body of articles published by a periodical in the same sense that bibliography is useful when published as a single article. ... (12 Dec 1998) ...

periodicals
A publication issued at stated, more or less regular, intervals. ... (12 Dec 1998) ...

periodontal
<dentistry> Pertaining to your gums. For example periodontal disease is gum disease. ... (08 Jan 1998) ...

periodontal abscess
Localised circumscribed purulent area of inflammation in the periodontal tissue. It is a derivative of marginal periodontitis and commonly associated with suprabony and infrabony pockets and interradicular involvements, in contrast to periapical abscess which is attributable to pulp necrosis. ... (12 Dec 1998) ...

periodontal anaesthesia
Anaesthesia of the periodontal ligament, produced by injection of a local anaesthetic drug. ... (05 Mar 2000) ...

periodontal atrophy
Decrease in size and/or cellular elements of the periodontium after it has reached normal maturity. ... (05 Mar 2000) ...

periodontal attachment loss
Loss or destruction of periodontal tissue caused by periodontitis or other destructive periodontal diseases or by injury during instrumentation. Attachment refers to the periodontal ligament which attaches to the alveolar bone. It has been hypothesised that treatment of the underlying periodontal disease and the seeding of periodontal ligament cell …

periodontal cyst
An epithelium-lined sac containing fluid; usually found at the apex of a pulp-involved tooth. The lateral type occurs less frequently along the side of the root. ... (12 Dec 1998) ...

periodontal disease
<dentistry, disease> A general term that includes all diseases of the gums, teeth and underlying bone. A major cause of tooth loss. ... See: gingivitis and calculus. ... (27 Sep 1997) ...

Periodontal Disease Index
An index used for estimating the degree of periodontal disease based on the measurement of six representative teeth for gingival inflammation, pocket depth, calculus and plaque, attrition, mobility, and lack of contact. ... (05 Mar 2000) ...

periodontal dressings
Surgical dressings, after periodontal surgery, applied to the necks of teeth and the adjacent tissue to cover and protect the surgical wound. (boucher's clinical dental terminology, 4th ed, p218) ... (12 Dec 1998) ...

periodontal file
An instrument with a series of ridges or points arranged in rows on its surface, used for scaling or removing dental calculus from the teeth. ... (05 Mar 2000) ...