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

median cubital vein
<anatomy, vein> A vein which passes across the anterior aspect of the elbow from the cephalic vein to the basilic vein; commonly this vein is replaced by intermediate basilic and intermediate cephalic veins. The median cubital vein is often used for venipuncture. ... Synonym: vena intermedia cubiti, intermediate cubital vein, vena mediana cubi …

median effective dose
Synonym for effective dose ... The dose that produces the desired effect; when followed by a subscript (generally 'ED50'), it denotes the dose having such an effect on a certain percentage (e.g., 50%) of the test animals; ED50 is the median effective dose, in radiation protection, the sum of the equivalent doses in all tissues and organs of the body …

median eminence
<anatomy> Raised area on the infundibular hypothalamus at the floor of the third ventricle of the brain which contains the primary capillary network of the hypophyseal portal system. ... (12 Dec 1998) ...

median frontal sulcus
Synonym for middle frontal sulcus ... A relatively shallow sagittal fissure of the brain dividing the middle frontal convolution into an upper and lower part; this sulcus is found only in humans and anthropoid apes; at its anterior extremity it bifurcates, the two branches spreading out laterally and constituting the frontomarginal sulcus. ... Synony …

median glossoepiglottic fold
<anatomy> A fold of mucous membrane in the midline that extends from the back of the tongue to the epiglottis, forming the medial boundary of the epiglottic valleculae. ... Synonym: plica glossoepiglottica mediana, frenulum epiglottidis, middle glossoepiglottic fold. ... (05 Mar 2000) ...

median groove of tongue
<anatomy> Median groove or median longitudinal raphe of tongue; raphe linguae; a slight longitudinal depression running forward on the dorsal surface of the tongue from the foramen caecum. ... Synonym: sulcus medianus linguae, median longitudinal raphe of tongue, raphe linguae. ... (05 Mar 2000) ...

median laryngotomy
Synonym for laryngofissure ... Operative opening into the larynx, generally through the midline, commonly done for the excision of early carcinoma or the correction of laryngostenosis. ... Synonym: median laryngotomy, thyrofissure, thyroidotomy, thyrotomy. ... (05 Mar 2000) ...

median line
<anatomy> See: anterior median line, posterior median line. ... (05 Mar 2000) ...

median lithotomy
<surgery> Lithotomy in which the perineal incision is made in the median raphe. ... Synonym: marian lithotomy. ... (05 Mar 2000) ...

median longitudinal raphe of tongue
Synonym for median groove of tongue ... <anatomy> Median groove or median longitudinal raphe of tongue; raphe linguae; a slight longitudinal depression running forward on the dorsal surface of the tongue from the foramen caecum. ... Synonym: sulcus medianus linguae, median longitudinal raphe of tongue, raphe linguae. ... (05 Mar 2000) ...

median mandibular point
<anatomy> A point on the anteroposterior centre of the mandibular ridge in the median sagittal plane. ... (05 Mar 2000) ...

median nerve
<anatomy, nerve> A major nerve of the upper extremity. In humans, the fibres of the median nerve originate in the lower cervical and upper thoracic spinal cord (usually c6 to t1), travel via the brachial plexus, and supply sensory and motor innervation to parts of the forearm and hand. ... (12 Dec 1998) ...

median palatine suture
Line of union between the horizontal plates of the palatine bones, continuing the intermaxillary suture posteriorly. ... Synonym: sutura palatina mediana. ... (05 Mar 2000) ...

median plane
A vertical plane through the midline of the body that divides the body into right and left halves. ... See: Addison's clinical planes. ... Synonym: midsagittal plane. ... (05 Mar 2000) ...

median raphe cyst of the penis
A cyst of the raphe penis resulting from incomplete closure of the urethral groove, becoming clinically evident in childhood or later. ... (05 Mar 2000) ...

median retruded relation
Synonym for centric jaw relation ... <anatomy, dentistry> The most retruded physiologic relation of the mandible to the maxillae to and from which the individual can make lateral movements. ... It is a condition which can exist at various degrees of jaw separation, and it occurs around the terminal hinge axis, the most posterior relation of the …

median rhinoscopy
Inspection of the roof of the nasal cavity and openings of the posterior ethmoid cells and sphenoidal sinus by means of a long-bladed nasal speculum or nasopharyngoscope. ... (05 Mar 2000) ...

median sacral artery
<anatomy, artery> Origin, posterior aspect of abdominal aorta just above the bifurcation; distribution, lower lumbar vertebrae, sacrum, and coccyx; anastomoses, lateral sacral, superior and middle rectal. ... Synonym: arteria sacralis mediana, middle sacral artery. ... (05 Mar 2000) ...

median sacral crest
An unpaired crest formed by the fused spinous processes of the upper four sacral vertebrae. ... Synonym: crista sacralis mediana. ... (05 Mar 2000) ...

median sacral vein
<anatomy, vein> An unpaired vein accompanying the middle sacral artery receiving blood from the sacral venous plexus and emptying into the left common iliac vein. ... Synonym: vena sacralis mediana. ... (05 Mar 2000) ...

median section
A cross section attained by slicing in the median plane, actually or through imaging techniques, the body or any part of the body which occupies or crosses the median plane or by slicing any generally symmetrical anatomic structure, such as a finger or a cell, in its midline. Since actual sectioning the median plane results in a right and a left ha …

median sternotomy
<surgery> An incision through the midline of the sternum usually used to gain access to the heart, mediastinal structures, and great vessels. ... (05 Mar 2000) ...

median strumectomy
<surgery> Removal of a median goiter or an enlarged isthmus of the thyroid gland. ... (05 Mar 2000) ...

median sulcus of fourth ventricle
<anatomy> The shallow midline groove in the floor of the ventricle. ... Synonym: sulcus medianus ventriculi quarti. ... (05 Mar 2000) ...

median survival
<statistics> Median means the middle value. An equal number of people live longer as die earlier than the median. ... (16 Dec 1997) ...

median thyrohyoid ligament
<anatomy> The central thickened portion of the thyrohyoid membrane. ... Synonym: ligamentum thyrohyoideum medianum, ligamentum hyothyroideum medium. ... (05 Mar 2000) ...

median time to elimination
<pharmacology> The time it takes one half of a drug to be eliminated from the body. ... (09 Oct 1997) ...

median tongue bud
Synonym for tuberculum impar ... A small median protuberance on the floor of the oral cavity of the embryo between the mandibular and hyoid arches, which plays a minor role in the development of the tongue. ... Synonym: median tongue bud. ... (05 Mar 2000) ...

median umbilical fold
A fold of peritoneum on the anterior wall of the abdomen covering the urachus, or remains of the allantoic stalk. ... Synonym: plica umbilicalis mediana, middle umbilical fold, plica umbilicalis media, plica urachi, urachal fold. ... (05 Mar 2000) ...

median umbilical ligament
<anatomy> The remnant of the urachus, contained in the median umbilical fold; it persists as a midline fibrous cord between the apex of the bladder and the umbilicus. ... Synonym: ligamentum umbilicale medianum, middle umbilical ligament, urachal ligament. ... (05 Mar 2000) ...

median vein of forearm
Synonym for median antebrachial vein ... It begins at the base of the dorsum of the thumb, curves around the radial side, ascends the middle of the forearm, and just below the bend of the elbow divides into the intermediate basilic and intermediate cephalic veins; sometimes it divides lower down, one branch going to the basilic vein, the other to th …

median vein of neck
A vein occasionally present due to fusion of the two anterior jugular vein's. ... (05 Mar 2000) ...

medianus
Synonym: median. ... Origin: L. ... (05 Mar 2000) ...

mediastinal arteries
Synonym for mediastinal branches ... Branches distributed to the mediastinum. ... Synonym: rami mediastinales, arteriae mediastinales anteriores, mediastinal arteries. ... (05 Mar 2000) ...

mediastinal branches
Branches distributed to the mediastinum. ... Synonym: rami mediastinales, arteriae mediastinales anteriores, mediastinal arteries. ... (05 Mar 2000) ...

mediastinal cyst
Cysts of one of the parts of the mediastinum: the superior part, containing the trachea, oesophagus, thoracic duct and thymus organs; the inferior middle part, containing the pericardium; the inferior anterior part containing some lymph nodes; and the inferior posterior part, containing the thoracic duct and oesophagus. ... (12 Dec 1998) ...

mediastinal diseases
Disorders of the mediastinum, general or unspecified. ... (12 Dec 1998) ...

mediastinal emphysema
Presence of air in the mediastinal tissues due to leakage of air from the tracheobronchial tree, usually as a result of trauma. ... (12 Dec 1998) ...

mediastinal fibrosis
<radiology> Histoplasmosis most common cause, can cause superior vena cava obstruction ... (12 Dec 1998) ...

mediastinal lipomatosis
Increased mediastinal fat caused by taking steroids. ... (05 Mar 2000) ...

mediastinal part of lung
Synonym for mediastinal surface of lung ... The part of the medial surface of a lung in contact with the mediastinum. ... Synonym: pars mediastinalis pulmonis, facies mediastinalis pulmonis, mediastinal part of lung. ... (05 Mar 2000) ...

mediastinal pleura
The continuation of the costal pleura passing from the sternum to the vertebral column which covers the side of the mediastinum. ... Synonym: pleura mediastinalis. ... (05 Mar 2000) ...

mediastinal pleurisy
Inflammation of the portion of the pleura lining the mediastinal surface of the lung. ... (05 Mar 2000) ...

mediastinal space
Synonym for mediastinum ... <anatomy> The space in the thoracic cavity behind the sternum and in between the two pleural sacs (containing the lungs). ... (27 Sep 1997) ...

mediastinal surface of lung
The part of the medial surface of a lung in contact with the mediastinum. ... Synonym: pars mediastinalis pulmonis, facies mediastinalis pulmonis, mediastinal part of lung. ... (05 Mar 2000) ...

mediastinal veins
Several small veins from the mediastinum emptying into the brachiocephalic veins or the superior vena cava. ... Synonym: venae mediastinales. ... (05 Mar 2000) ...

mediastinitis
<pathology> Inflammation of the mediastinum, which includes the cavity that separates the lungs and includes the heart, great vessels, trachea, thymus and connective tissue. ... (27 Sep 1997) ...

mediastinography
Radiography of the mediastinum. ... Origin: mediastinum + G. Grapho, to write ... (05 Mar 2000) ...

mediastinopericarditis
Inflammation of the pericardium and of the surrounding mediastinal cellular tissue. ... (05 Mar 2000) ...

mediastinoscope
<instrument> An endoscope for inspection of mediastinum through a suprasternal incision. ... (05 Mar 2000) ...

mediastinoscopy
A procedure in which the doctor inserts a tube into the chest to view the organs in the mediastinum. The tube is inserted through an incision above the breastbone. ... (12 Dec 1998) ...

mediastinotomy
<procedure> A procedure in which the doctor inserts a tube into the chest to view the organs in the mediastinum. The tube is inserted through an incision next to the breastbone. ... (12 Dec 1998) ...

mediastinum
<anatomy> The space in the thoracic cavity behind the sternum and in between the two pleural sacs (containing the lungs). ... (27 Sep 1997) ...

mediastinum anterius
Synonym for anterior mediastinum ... Anterior mediastinum, the narrow region between the pericardium and the sternum containing the thymus or its remnants, some lymph nodes and vessels and branches of the internal thoracic artery. ... Synonym: mediastinum anterius. ... (05 Mar 2000) ...

mediastinum inferius
Synonym for inferior mediastinum ... The region below a plane transecing the T4/5 intervertebral disc posteriorly and the sternal angle anteriorly, demarcating the inferior limit of the superior mediastinum. It is subdivided into three regions: middle, anterior, and posterior. ... Synonym: mediastinum inferius. ... (05 Mar 2000) ...

mediastinum medium
Synonym for middle mediastinum ... The central portion of the inferior mediastinum which contains the pericardium and its contents and the phrenic nerves and accompanying vessels. ... Synonym: mediastinum medium. ... (05 Mar 2000) ...

mediastinum posterius
Synonym for posterior mediastinum ... Lies between the pericardium and the vertebral column, below the level of the T4/5 intervertebral disc. It contains the descending aorta, thoracic duct, oesophagus, azygos veins, and vagus nerves. ... Synonym: mediastinum posterius, postmediastinum. ... (05 Mar 2000) ...

mediastinum superius
Synonym for superior mediastinum ... That part lying above, i.e., above the pericardium; it contains the arch of the aorta and the vessels arising from it, the brachiocephalic veins, and upper portion of the superior vena cava, the trachea, the oesophagus, the thoracic duct, the thymus, and the phrenic, vagus, cardiac, and left recurrent laryngeal n …

mediastinum testis
A mass of fibrous tissue continuous with the tunica albuginea, projecting into the testis from its posterior border. ... Synonym: corpus highmori, corpus highmorianum, Highmore's body, septum of testis. ... (05 Mar 2000) ...

mediate
Indirect, accomplished by the aid of an intervening medium. ... (18 Nov 1997) ...

mediate contagion
Indirect contagion effected through the medium of persons or objects that have been in contact with the sick. ... (05 Mar 2000) ...

mediate percussion
Percussion effected by the intervention of a finger or a plessimeter between the striking finger or plessor and the part percussed. ... (05 Mar 2000) ...

mediate transfusion
Synonym for indirect transfusion ... Transfusion into a patient of blood previously obtained from a donor and stored in a suitable container. ... Synonym: mediate transfusion. ... (05 Mar 2000) ...

mediation
The action of an intermediary substance (mediator). ... (05 Mar 2000) ...

mediator
An object or substance by which something is mediated, such as ... 1. <anatomy> A structure of the nervous system that transmits impulses eliciting a specific response. ... 2. <chemistry> A chemical substance (transmitter substance) that induces activity in an excitable tissue, such as nerve or muscle, or ... 3. <cell biology> A subs …

medicaid
State programs of public assistance to persons regardless of age whose income and resources are insufficient to pay for health care. The united states federal government provides matching funds to the state medicaid programs. ... (12 Dec 1998) ...

medical
Pertaining to medicine or to the treatment of diseases, pertaining to medicine as opposed to surgery. ... (18 Nov 1997) ...

medical anatomy
<procedure> Anatomy in its bearing upon the diagnosis and treatment of diseases. ... (05 Mar 2000) ...

medical assistance
Financing of medical care provided to public assistance recipients. ... (12 Dec 1998) ...

medical audit
A detailed review and evaluation of selected clinical records by qualified professional personnel for evaluating quality of medical care. ... (12 Dec 1998) ...

medical biophysics
Biophysics related to diagnosis and therapy. ... (05 Mar 2000) ...

medical care
The portion of care under a physician's direction. ... (05 Mar 2000) ...

medical chemistry
Chemistry in its relation to pharmacy, physiology, or any science connected with medicine. ... (05 Mar 2000) ...

medical corps
The subdivision of a military organization, such as the U.S. Army, devoted to medical care of the troops. ... (05 Mar 2000) ...

medical diathermy
Diathermy of mild degree causing no destruction of tissue. ... Synonym: thermopenetration. ... (05 Mar 2000) ...

medical directives, advance
Advance directives preserve the person's right to accept or reject a course of medical treatment even after that person becomes mentally or physically incapacitated to the point of being unable to communicate those wishes. There ared two basic types of advance directives: (1) a living will, in which the person outlines specific treatment guidelines …

medical errors
Errors or mistakes committed by health professionals which result in harm to the patient. They include errors in diagnosis (diagnostic errors), errors in the administration of drugs and other medications (medication errors), errors in the performance of surgical procedures, in the use of other types of therapy, in the use of equipment, and in the i …

medical ethics
The principles of proper professional conduct concerning the rights and duties of the physician, patients, and fellow practitioners, as well as the physician's actions in the care of patients and in relations with their families. ... (05 Mar 2000) ...

medical examiner
A physician who examines a person and reports upon his physical condition to the company or individual at whose request the examination was made, in states or municipalities where the office of coroner has been abolished, a physician appointed to investigate all cases of sudden, violent, or suspicious death. ... (05 Mar 2000) ...

medical futility
The absence of a useful purpose or useful result in a diagnostic procedure or therapeutic intervention. The situation of a patient whose condition will not be improved by treatment or instances in which treatment preserves permanent unconsciousness or cannot end dependence on intensive medical care. ... (12 Dec 1998) ...

medical genetics
The study of the aetiology, pathogenesis, and natural history of human diseases which are at least partially genetic in origin. ... Compare: clinical genetics, human genetics. ... (05 Mar 2000) ...

medical illustration
The field which deals with illustrative clarification of biomedical concepts, as in the use of diagrams and drawings. The illustration may be produced by hand, photography, computer, or other electronic or mechanical methods. ... (12 Dec 1998) ...

medical indigency
The condition in which an individual is unable to provide himself and his dependents with adequate medical care without depriving himself and his dependents of food, clothing, shelter, and other essentials of living. ... (12 Dec 1998) ...

medical informatics
<study> Medical informatics is the use of computers and software to solve clinical or health care problems and the use of algorithms to improve communication, understanding and management of medical information. ... (09 Oct 1997) ...

medical informatics applications
Automated systems applied to the patient care process including diagnosis, therapy, and systems of communicating medical data within the health care setting. ... (12 Dec 1998) ...

medical informatics computing
Precise procedural mathematical and logical operations utilised in the study of medical information pertaining to health care. ... (12 Dec 1998) ...

medical jurisprudence
Synonym for forensic medicine ... The application of medical knowledge to questions of law. ... (12 Dec 1998) ...

medical missions, official
Travel by a group of physicians to a foreign country for the purpose of making a special study or of undertaking a special project of a short-term duration; not to be confused with missions and missionaries which covers permanent medical establishments and personnel maintained by religious organizations. ... (12 Dec 1998) ...

medical model
A set of assumptions that views behavioural abnormalities in the same framework as physical disease or abnormalities. ... (05 Mar 2000) ...

medical mycology
The study of fungi that produce disease in humans and other animals, and of the diseases they produce, their ecology, and their epidemiology. ... (05 Mar 2000) ...

medical office buildings
Office and laboratory facilities constructed for the use of physicians and other health personnel. ... (12 Dec 1998) ...

medical oncologist
<specialist> A cancer physician, qualified in internal medicine who has subspecialised in the whole person assessment of patients with cancer and also in the use of chemotherapy, hormones and biotherapy. ... Some medical oncologists combine their practice with internal medicine, others with haem-oncology or palliative medicine. There are few s …

medical oncology
A subspecialty of internal medicine concerned with the study of neoplasms. ... (12 Dec 1998) ...

medical pathology
Pathology pertaining to various diseases not suitable for treatment by surgery. ... (05 Mar 2000) ...

medical psychology
The branch of psychology concerned with the application of psychologic principles to the practice of medicine; the application of clinical psychology or clinical health psychology, usually in a hospital setting. ... (05 Mar 2000) ...

medical receptionists
Individuals who receive patients in a medical office. ... (12 Dec 1998) ...

medical record administrators
Individuals professionally qualified in the management of patients' records. Duties may include planning, designing, and managing systems for patient administrative and clinical data, as well as patient medical records. The concept includes medical record technicians. ... (12 Dec 1998) ...

medical record linkage
The creation and maintenance of medical and vital records in multiple institutions in a manner that will facilitate the combined use of the records of identified individuals. ... (12 Dec 1998) ...

medical records
Recording of pertinent information concerning patient's illness or illnesses. ... (12 Dec 1998) ...

medical records, problem-oriented
The structuring of a patient's record according to a complete listing of his medical problems accompanied by progress notes for each problem. ... (12 Dec 1998) ...