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

pars ossea systematis skeletalis
Synonym for osseous part of skeletal system ... The part of the skeleton composed of bone. ... Synonym: pars ossea systematis skeletalis. ... (05 Mar 2000) ...

pars ossea tubae auditivae
Synonym for bony part of auditory tube ... The portion of the auditory tube that passes from the tympanic cavity anteromedially through the semicanal for auditory tube. ... Synonym: pars ossea tubae auditivae. ... (05 Mar 2000) ...

pars parasympathica
parasympathetic part ...

pars pelvina
pelvic part ...

pars pelvina ureteris
Synonym for pelvic part of ureter ... The part of the ureter between the brim of the pelvis and the urinary bladder; the upper pelvic portion of the embryologic urogenital sinus. ... Synonym: pars pelvina ureteris. ... (05 Mar 2000) ...

pars peripherica
Synonym for peripheral nervous system ... One of the two major divisions of the nervous system. Nerves in the PNS connect the central nervous system (CNS) with sensory organs, other organs, muscles, bloodvessels and glands. ... (22 May 1997) ...

pars perpendicularis
Synonym for perpendicular plate ... Flat portion of a bone which lies within or closely approximates a vertical plane. ... See: perpendicular plate of ethmoid bone, perpendicular plate of palatine bone. ... Synonym: lamina perpendicularis, pars perpendicularis, vertical plate. ... (05 Mar 2000) ...

pars petrosa ossis temporalis
Synonym for petrous part of temporal bone ... The part of the temporal bone that contains the structures of the inner ear and the second part of the internal carotid artery; in antenatal life it appears as a separate ossification centre. ... Synonym: pars petrosa ossis temporalis, periotic bone, petrosal bone, petrous pyramid. ... (05 Mar 2000) ...

pars phallica
The lower portion of the urogenital sinus, related to the base of the genital tubercle. ... (05 Mar 2000) ...

pars pharyngea hypophyseos
Synonym for pharyngeal hypophysis ... Residual tissue derived from the hypophysial diverticulum that lies in the lamina propria of the nasopharynx; its cells and their arrangement are identical with those of the pars distalis. ... Synonym: pars pharyngea hypophyseos. ... (05 Mar 2000) ...

pars pigmentosa
Synonym for pigmented part of retina ... pars pigmentosa ...

pars plana
Synonym for orbiculus ciliaris ... The darkly pigmented posterior zone of the ciliary body continuous with the retina at the ora serrata. ... Synonym: ciliary disk, ciliary ring, pars plana. ... Origin: Mod. L. ... (05 Mar 2000) ...

pars planitis
<ophthalmology> A condition that causes inflammation of the peripheral retina and/or pars plana, with exudation into the overlying vitreous base, and oedema of the optic disk and adjacent retina. ... It is a form of granulomatous uveitis and is a common condition with no detectable focal pathology. It causes fibrovascular proliferation at the …

pars posterior fornicis vaginae
Synonym for vaginal fornix ... The recess at the vault of the vagina; it is divided into an anterior part, posterior part, and lateral part with respect to its relation to the cervix of the uterus. The posterior part is clinically significant as the site for culdocentesis and culdoscopy. The proximity of the ureter (below) and the uterine artery (ab …

pars postlaminaris nervi optici
Synonym for postlaminar part of optic nerve ... <anatomy, nerve> The portion of the optic nerve posterior to the lamina cribrosa of the sclera. ... Synonym: pars postlaminaris nervi optici. ... (05 Mar 2000) ...

pars postsulcalis
Synonym for dorsum of tongue ... The back of the tongue; the upper surface of the tongue divided by the sulcus terminalis into an anterior two-thirds, the pars presulcalis (presulcal part), and a posterior one-third, the pars postsulcalis (postsulcal part). ... Synonym: dorsum linguae. ... (05 Mar 2000) ...

pars prelaminaris nervi optici
Synonym for prelaminar part of optic nerve ... <anatomy, nerve> The portion of the optic nerve anterior to the lamina cribrosa of the sclera. ... Synonym: pars prelaminaris nervi optici. ... (05 Mar 2000) ...

pars presulcalis
Synonym for dorsum of tongue ... The back of the tongue; the upper surface of the tongue divided by the sulcus terminalis into an anterior two-thirds, the pars presulcalis (presulcal part), and a posterior one-third, the pars postsulcalis (postsulcal part). ... Synonym: dorsum linguae. ... (05 Mar 2000) ...

pars profunda glandulae parotideae
Synonym for parotid gland ... <anatomy> A salivary gland situated in front of and below the ear. ... (27 Sep 1997) ...

pars profunda musculi masseteri
Synonym for deep part of masseter muscle ... pars profunda musculi masseteri ...

pars prostatica urethrae
Synonym for prostatic urethra ... The prostatic part of the male urethra, about 2.5 cm in length, that traverses the prostate; it includes the seminal colliculus, and the ejaculatory and prostatic ducts open into it. ... Synonym: pars prostatica urethrae. ... (05 Mar 2000) ...

pars pylorica gastris
pyloric part of stomach ...

pars pylorica ventriculi
<anatomy> An alternate term for pyloric part of stomach. ... (05 Mar 2000) ...

pars quadrata hepatis
Synonym for quadrate part of liver ... The part of the medial segment of the liver which includes the quadrate lobe. ... Synonym: pars quadrata hepatis. ... (05 Mar 2000) ...

pars recta musculi cricothyroidei
cricothyroid muscle ...

pars sacralis medullae spinalis
Synonym for sacral part of spinal cord ... The part of the cord from which consists of the five sacral segments of the spinal cord (S1-S5) and from which five pairs of sacral nerves originate. ... Synonym: pars sacralis medullae spinalis, segmenta medullae spinalis sacralia. ... (05 Mar 2000) ...

pars sellaris
Synonym for sella turcica ... <anatomy> A transverse depression crossing the midline on the superior surface of the body of the sphenoid bone and containing the pituitary gland. It is named 'turkish saddle' from its resemblance to the saddle used by turks. ... (12 Dec 1998) ...

pars spinalis nervi accessorii
<anatomy> An alternate term for spinal root of accessory nerve. ... (05 Mar 2000) ...

pars spongiosa urethrae masculinae
Synonym for spongy urethra ... The portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum. ... Synonym: pars spongiosa urethrae masculinae, pars cavernosa, penile urethra, spongy part of the male urethra. ... (05 Mar 2000) ...

pars squamosa ossis temporalis
Synonym for squamous part of temporal bone ... The broad, flat, thin (scale-like) anterior and superior portion of the temporal bone forming part of the lateral wall of the cranial vault. ... Synonym: pars squamosa ossis temporalis, squama temporalis, temporal squama. ... (05 Mar 2000) ...

pars sternalis diaphragmatis
Synonym for sternal part of diaphragm ... The small slip on each side that arises from the inner surface of the xiphoid process and inserts on the central tendon. ... Synonym: pars sternalis diaphragmatis. ... (05 Mar 2000) ...

pars superior duodeni
Synonym for superior part of duodenum ... pars superior duodeni ...

pars superior ganglii vestibularis
Synonym for superior part of vestibular ganglion ... Rostral part, the superior part of the vestibular ganglion that receives fibres from the maculae of the utricle and the saccule and the ampullae of the anterior and lateral semicircular ducts. ... Synonym: pars superior ganglii vestibularis. ... (05 Mar 2000) ...

pars sympathica
Synonym for sympathetic nervous system ... <anatomy, physiology> One of the two divisions of the vertebrate autonomic nervous system (the other being the parasympathetic nervous system). ... The sympathetic preganglionic neurons have their cell bodies in the thoracic and lumbar regions of the spinal cord and connect to the paravertebral chain o …

pars tecta
<anatomy> An obsolete term, pars tecta duodeni, the part of duodenum covered by the root of the transverse mesocolon, the coalescence of the ascending mesocolon, and the root of the mesentery, pars tecta pancreatis, hidden portion of the pancreas; part of the pancreas covered by the root of the transverse mesocolon, the coalescence of the asc …

pars tensa membranae tympani
Synonym for tense part of the tympanic membrane ... The greater portion of the tympanic membrane which is tense and firm, contrasting with the small triangular flaccid part of tympanic membrane. ... Synonym: pars tensa membranae tympani, membrana tensa, membrana vibrans. ... (05 Mar 2000) ...

pars terminalis
See: middle cerebral artery, posterior cerebral artery. ... Synonym: terminal part. ... (05 Mar 2000) ...

pars thoracica aortae
Synonym for thoracic aorta ... The part of the descending aorta that supplies structures as far down as the diaphragm. ... Synonym: pars thoracica aortae, aorta thoracica, thoracic part of aorta. ... (05 Mar 2000) ...

pars thoracica ductus thoracici
Synonym for thoracic part of thoracic duct ... pars thoracica ductus thoracici ...

pars thoracica medullae spinalis
Synonym for thoracic part of spinal cord ... The part of the spinal cord which consists of the twelve thoracic segments of the spinal cord from which the twelve pairs of thoracic nerves originate. ... Synonym: pars thoracica medullae spinalis, segmenta medullae spinalis thoracica. ... (05 Mar 2000) ...

pars thoracica oesophagi
Synonym for thoracic part of oesophagus ... The part of the oesophagus between the superior thoracic aperture and the diaphragm. ... Synonym: pars thoracica oesophagi. ... (05 Mar 2000) ...

pars transversa musculi nasalis
Synonym for transverse part of nasalis muscle ... <anatomy> See: nasalis muscle. ... Synonym: pars transversa musculi nasalis. ... (05 Mar 2000) ...

pars triangularis
Synonym for triangular part ... The middle one of three small convolutions which together compose the inferior frontal gyrus of the cerebral cortex; the other two being the orbital part and opercular part. ... Synonym: pars triangularis. ... (05 Mar 2000) ...

pars tuberalis
<anatomy> The upward extension of the anterior lobe that wraps around the infundibular stalk; its cells, mostly gonadotropic, are arranged in cords and clusters; it is supplied by the superior hypophyseal arteries and contains the first capillary bed and the venules of a portal system that carries neurosecretory factors from the hypothalamus …

pars tympanica ossis temporalis
Synonym for tympanic plate of temporal bone ... The bony plate forming the greater part of the anterior wall of the bony part of the external acoustic meatus and the tympanic cavity and the posterior wall of the mandibular fossa. ... Synonym: pars tympanica ossis temporalis, tympanic part of temporal bone. ... (05 Mar 2000) ...

pars uterina placentae
<anatomy> The part of the placenta derived from the uterine tissue. ... See: placenta. ... Synonym: maternal placenta, placenta uterina. ... (05 Mar 2000) ...

pars uterina tubae uterinae
Synonym for uterine part of uterine tube ... The part of the uterine tube located within the wall of the uterus. ... Synonym: pars uterina tubae uterinae. ... (05 Mar 2000) ...

pars uvealis reticuli trabecularis
Synonym for uveal part of trabecular reticulum ... The posterior part of the trabecular reticulum, located between the scleral spur, the ciliary body, and the anterior surface of the iris. ... Synonym: pars uvealis reticuli trabecularis. ... (05 Mar 2000) ...

pars vagalis nervi accessorii
Synonym for cranial root of accessory nerve ... <anatomy, nerve> The roots of the accessory nerve which arise from the medulla; the nerve fibres of the cranial root join the intracranial portion of the vagus nerve and are distributed to the pharyngeal plexus, providing the motor innervation of the soft palate (except the tensor veli palati) an …

pars ventralis pontis
Synonym for ventral part of pons ... The large ventral part of the pons occupied by the nuclei pontis, traversed longitudinally by corticopontine, corticobulbar, and corticospinal fibres, and transversely by pontocerebellar fibres. Pontocerebellar fibres converging laterally form the middle cerebellar peduncle or brachium pontis. ... Synonym: pars ve …

parsley
<botany> An aromatic umbelliferous herb (Carum Petroselinum), having finely divided leaves which are used in cookery and as a garnish. 'As she went to the garden for parsley, to stuff a rabbit.' (Shak) Fool's parsley. See Fool. Hedge parsley, Milk parsley, Stone parsley, names given to various weeds of similar appearance to the parsley. ... &l …

parsnip
<botany> The aromatic and edible spindle-shaped root of the cultivated form of the Pastinaca sativa, a biennial umbelliferous plant which is very poisonous in its wild state; also, the plant itself. Cow parsnip. See Cow parsnip. Meadow parsnip, the European cow parsnip. Poison parsnip, the wild stock of the parsnip. Water parsnip, any plant o …

parson
1. A person who represents a parish in its ecclesiastical and corporate capacities; hence, the rector or incumbent of a parochial church, who has full possession of all the rights thereof, with the cure of souls. ... 2. Any clergyman having ecclesiastical preferment; one who is in orders, or is licensed to preach; a preacher. 'He hears the parson pr …

Parsonage-Turner syndrome
Synonym for neuralgic amyotrophy ... A neurological disorder, of unknown cause, characterised by the sudden onset of severe pain, usually about the shoulder and often beginning at night, soon followed by weakness and wasting of various forequarter muscles, particularly shoulder girdle muscles; both sporadic and familial in occurrence with the former …

part
1. To be broken or divided into parts or pieces; to break; to become separated; to go asunder; as, rope parts; his hair parts in the middle. ... 2. To go away; to depart; to take leave; to quit each other; hence, to die; often with from. 'He wrung Bassanio's hand, and so they parted.' (Shak) 'He owned that he had parted from the duke only a few hour …

partes
Plural of pars. ... (05 Mar 2000) ...

partes corporis humani
Synonym for parts of human body ... The head, neck, trunk, and limbs. ... Synonym: partes corporis humani. ... (05 Mar 2000) ...

partes genitales femininae externae
Outmoded term for external female genital organs. ... Partes genitales masculinae externae, outmoded term for external male genital organs. ... (05 Mar 2000) ...

parthenocarpy
<botany> Fruit formation without fertilization. Occurs spontaneously in some plants, for example banana and in other plants can be induced by application of auxin. Results in seedless fruits. ... (18 Nov 1997) ...

parthenogenesis
<biology> Development of an ovum without fusion of its nucleus with a male pronucleus to form a zygote. ... (18 Nov 1997) ...

parthenophobia
<psychology> Morbid fear of girls. ... Origin: G. Parthenos, virgin, + phobos, fear ... (05 Mar 2000) ...

partial
1. Of, pertaining to, or affecting, a part only; not general or universal; not total or entire; as, a partial eclipse of the moon. 'Partial dissolutions of the earth.' ... 2. Inclined to favor one party in a cause, or one side of a question, more then the other; baised; not indifferent; as, a judge should not be partial. 'Ye have been partial in the …

partial agglutinin
Synonym for minor agglutinin ... Immune agglutinin present in an antiserum in lesser concentration than the major agglutinin. ... Synonym: partial agglutinin. ... (05 Mar 2000) ...

partial anencephaly
Synonym for hemicephalia ... Congenital failure of the cerebrum to develop normally; usually the cerebellum and basal ganglia are represented at least in rudimentary form. ... Synonym: partial anencephaly. ... Origin: hemi-+ G. Kephale, head ... (05 Mar 2000) ...

partial aneuploidy
A type of mosaicism in which some cells have a normal number of chromosomes and some have an abnormal number. ... (05 Mar 2000) ...

partial anodontia
Synonym for hypodontia ... A condition of having fewer than the normal complement of teeth, either congenital or acquired. ... Synonym: oligodontia, partial anodontia. ... Origin: hypo-+ G. Odous, tooth ... (05 Mar 2000) ...

partial antigen
Synonym for hapten ... <immunology, molecular biology> Could be considered an isolated epitope: although a hapten (by definition) has an antibody directed against it, the hapten alone will not induce an immune response if injected into an animal, it must be conjugated to a carrier (usually a protein). ... The hapten constitutes a single antigen …

partial breech extraction
Assisted breech delivery by the obstetrician with spontaneous delivery of the foetus to the level of the umbilicus. ... (05 Mar 2000) ...

partial cut
A harvest method in which portions of a stand of timber are cut during a number of entries over time. Precommercial thinning operations are not considered partial cuts. ... (05 Dec 1998) ...

partial cystectomy
<procedure> Removal of a part or segment of the bladder. ... (05 Mar 2000) ...

partial denture
A dental prosthesis which restores one or more, but less than all, of the natural teeth and/or associated parts and which is supported by the teeth and/or the mucosa; it may be removable or fixed. ... Synonym: bridgework. ... Distal extension, a removable partial denture that is retained by natural teeth at one end of the denture base segments only, …

partial denture impression
An impression or negative copy of all or a part of the partially edentulous dental arch or area, made for the purpose of designing or constructing a partial denture. ... (05 Mar 2000) ...

partial denture retention
The fixation of a removable partial denture by the use of clasps, indirect retainers, or precision attachments. ... (05 Mar 2000) ...

partial endocardial cushion defect
<radiology> Incomplete endocardial cushion defect components: ostium primum atrial septal defect, cleft in anterior mitral valve findings: right AV valve is usually normal, with or without mitral insufficiency, communication between LA_RA or LV-RA, occasionally LV-RV Cf: complete endocardial cushion defect ... (12 Dec 1998) ...

partial enterocele
Synonym for parietal hernia ... A hernia in which only a portion of the wall of the intestine is engaged. ... Synonym: Littre's hernia, partial enterocele, Richter's hernia. ... (05 Mar 2000) ...

partial epilepsy
Synonym for focal epilepsy ... Epilepsy of various aetiologies characterised by focal seizures or secondarily generalised tonic-clonic seizures. Ictal symptoms are often related to the brain region where the seizure begins focally. ... Synonym: cortical epilepsy, local epilepsy, partial epilepsy. ... (05 Mar 2000) ...

partial face-sparing lipodystrophy
A syndrome beginning at puberty that resembles total lipodystrophy but is inherited as an autosomal or X-linked dominant form. ... (05 Mar 2000) ...

partial heart block
Impulses penetrate the atrioventricular junction in some relation to the ventricular rate. ... Synonym: incomplete atrioventricular block. ... (05 Mar 2000) ...

partial hysterectomy
<procedure> In a partial hysterectomy, the uterus is surgically removed but the cervix is left in place. Also called a subtotal hysterectomy. ... (12 Dec 1998) ...

partial ileal bypass
Division of the small intestine approximately at the junction of the middle and lower one-third, closure of the distal end, and anastomosis of the proximal end to the caecum. ... (05 Mar 2000) ...

partial lipoatrophy
Synonym for progressive lipodystrophy ... A condition characterised by a complete loss of the subcutaneous fat of the upper part of the torso, the arms, neck, and face, sometimes with an increase of fat in the tissues about and below the pelvis. ... Synonym: Barraquer's disease, lipodystrophia progessiva superior, partial lipoatrophy, Simons' disease …

partial pressure
The pressure exerted by a single component of a mixture of gases, commonly expressed in mm Hg or torr; for a gas dissolved in a liquid, the partial pressure is that of a gas that would be in equilibrium with the dissolved gas. Formerly, symbolised by p, followed by the chemical symbol in capital letters (e.g., pCO2, pO2); now, in respiratory physio …

partial pressures
<chemistry> The independent pressure exerted by different gases in a mixture. ... (09 Jan 1998) ...

partial response
<oncology> A decrease of at least 50 percent in the sum of the measurements of all evaluable target lesions or tumours seen in a study. ... (16 Dec 1997) ...

partial sclerectasia
Partial protrusion of a portion of the sclera, typically seen in severe myopia. ... See: staphyloma. ... (05 Mar 2000) ...

partial seizure
<neurology> A brief temporary alteration in movement, sensation or autonomic nerve function caused by abnormal electrical activity in a localised area of the brain. ... Focal seizures (i.e. Partial or Jacksonian seizures) usually cause no change in awareness or alertness. ... An example of a focal (partial) seizure would be rhythmic muscle cont …

partial thromboplastin time
Test of the intrinsic (factors viii, ix, xi, and xii) and common (fibrinogen, prothrombin, factors v and x) pathways of coagulation in which a mixture of plasma and phospholipid platelet substitute (e.g., crude cephalins, soybean phosphatides) is recalcified and the time required for the appearance of fibrin strands measured. Activation may be prov …

partial volume
The actual volume occupied by one species of molecule or particle in a solution; the reciprocal of the density of the molecule. ... (05 Mar 2000) ...

partial-thickness burn
Synonym for second degree burn ... A burn involving the epidermis and dermis and usually forming blisters that may be superficial, or by deep dermal necrosis, followed by epithelial regeneration extending from the skin appendages. ... Synonym: partial-thickness burn. ... (05 Mar 2000) ...

partial-thickness flap
Synonym for split-thickness flap ... A flap of a portion of the skin, i.e., the epidermis and part of the dermis, or of part of the mucosa and submucosa, but not including the periosteum. ... Synonym: partial-thickness flap. ... (05 Mar 2000) ...

partial-thickness graft
Synonym for split-thickness graft ... A graft of portions of the skin, i.e., the epidermis and part of the dermis, or of part of the mucosa and submucosa, but not including the periosteum. ... Synonym: partial-thickness graft, split-skin graft. ... (05 Mar 2000) ...

participation
1. The act or state of participating, or sharing in common with others; as, a participation in joy or sorrows. 'These deities are so by participation.' (Bp. Stillingfleet) 'What an honor, that God should admit us into such a blessed participation of himself!' (Atterbury) ... 2. Distribution; division into shares. ... 3. Community; fellowship; associa …

participle
1. A part of speech partaking of the nature both verb and adjective; a form of a verb, or verbal adjective, modifying a noun, but taking the adjuncts of the verb from which it is derived. In the sentences: a letter is written; being asleep he did not hear; exhausted by toil he will sleep soundly, written, being, and exhaustedare participles. 'By a …

particle
<chemistry> A tiny mass of material. ... Origin: L. Particula, dim. Of pars = part ... (18 Nov 1997) ...

particle accelerators
Devices which accelerate electrically charged atomic or subatomic particles, such as electrons, protons or ions, to high velocities so they have high kinetic energy. ... (12 Dec 1998) ...

particle fluence
<chemistry, radiobiology> at a given point in space, the sum of energies, the number of particles or photons incident during a given time interval on a small sphere centreed at that point, divided by the cross-sectional area of that sphere. ... It is identical with the time integral of the particle flux density. ... (16 Dec 1997) ...

particular
1. Relating to a part or portion of anything; concerning a part separated from the whole or from others of the class; separate; sole; single; individual; specific; as, the particular stars of a constellation. '[/Make] each particular hair to stand an end, Like quills upon the fretful porpentine.' (Shak) 'Seken in every halk and every herne Particul …

particulate emission
Fine liquid or solid particles discharged with exhaust gases. Usually measured as grains per cubic foot or pounds per million Btu input. ... (05 Dec 1998) ...

particulates
Formed elements, discrete bodies, as contrasted with the surrounding liquid or semiliquid material; e.g., granules or mitochondria in cells. ... (05 Mar 2000) ...

parting
1. Serving to part; dividing; separating. ... 2. Given when departing; as, a parting shot; a parting salute. 'Give him that parting kiss.' ... 3. Departing. 'Speed the parting guest.' ... 4. Admitting of being parted; partible. Parting fellow, a partner. Parting pulley. See Pulley. Parting sand, a thin tool, used in turning or planing, for cutting a p …