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

head botflies
Flesh flies of the dipterous families Oestridae and Cuterebridae; robust, hairy, black, yellow, or gray flies that, while flying, deposit newly hatched larvae or, in some cases, eggs, on or near the nostrils of sheep, goats, deer, horses, camels, and, rarely, man. ... (05 Mar 2000) ...

head cap
Synonym for acrosomal cap ... A collapsed membranous vesicle that covers the anterior part of the nucleus of the spermatozoon, derived from the acrosomal granule; the carbohydrate-rich substance of the cap is associated with hydrolytic enzymes that aid in sperm penetration of the zona pellucida of the ovum. ... Synonym: head cap. ... (05 Mar 2000) ...

head cavity
The cephalic region in the embryos of vertebrates containing the modified somites that give rise to the extrinsic eye muscles. ... (05 Mar 2000) ...

head fold
A ventral folding of the cephalic extremity in the embryonic disk, so that the brain lies rostrad to the mouth and pericardium. ... (05 Mar 2000) ...

head injuries
General or unspecified injuries involving the head. ... (12 Dec 1998) ...

head injuries, closed
Organic or functional damage resulting from trauma to the head where continuity of the scalp and mucous membranes is maintained. When brain injury results from closed head injuries, the primary cause is mechanical stretching and shearing of nerve fibres. Also common are focal intracranial lesions including haematomas and contusions. ... (12 Dec 1998 …

head injury
Refers to a group of head injuries ranging from minor to major. ... Examples include scalp contusion, scalp haematoma, concussion, brain contusion, skull fracture, epidural haematoma, intracerebral haemorrhage, subarachnoid haemorrhage and subdural haematoma. Features shared by all head injuries (serious and nonserious) include: dizziness, nausea, v …

head kidney
Synonym for pronephros ... 1. The definitive excretory organ of primitive fishes. ... Synonym: head kidney. ... 2. In the embryos of higher vertebrates, a vestigial structure consisting of a series of tortuous tubules emptying into the cloaca by way of the primary nephric duct; in the human embryo, the pronephros is a very rudimentary and temporary st …

head lice
Small parasitic insects that can cause a itching red rash to the skin of the waist, shoulders, armpits, neck and pubic area. Commonly spread from person-to-person via close contact. The eggs (nits) of head lice can be mistaken for dandruff, but they are adherent to the hair shafts. ... Symptoms include itching, eggs visible on hair shafts and lice o …

head mirror
A circular concave mirror attached to a head band, used to project a beam of light into a cavity, such as the nose or larynx, for purposes of examination and permitting binocular vision. ... (05 Mar 2000) ...

head movements
Voluntary or involuntary motion of head that may be relative to or independent of body; includes animals and humans. ... (12 Dec 1998) ...

head nurse
A nurse administratively responsible for a designated hospital unit on a 24 hour basis. ... Synonym: charge nurse. ... (05 Mar 2000) ...

head of epididymis
The upper and larger extremity of the epididymis. ... Synonym: caput epididymidis, caput epididymis, globus major. ... (05 Mar 2000) ...

head of femur
The hemispheric articular surface at the upper extremity of the thigh bone. ... Synonym: caput ossis femoris, caput femoris, head of thigh bone. ... (05 Mar 2000) ...

head of fibula
The superior extremity of the fibula, which articulates by a facet with the undersurface of the lateral condyle of the tibia. ... Synonym: caput fibulae, upper extremity of fibula. ... (05 Mar 2000) ...

head of humerus
The upper rounded extremity fitting into the glenoid cavity of the scapula. ... Synonym: caput humeri. ... (05 Mar 2000) ...

head of malleus
The rounded portion of the malleus articulating with the body of the incus. ... Synonym: caput mallei. ... (05 Mar 2000) ...

head of mandible
The expanded articular portion of the condylar process of the mandible. ... Synonym: caput mandibulae. ... (05 Mar 2000) ...

head of metacarpal bone
The expanded distal end of a metacarpal that articulates with the proximal phalanx of the same digit. ... Synonym: caput ossis metacarpalis. ... (05 Mar 2000) ...

head of metatarsal bone
The expanded distal end of a metatarsal bone that articulates with the proximal phalanx of the same digit. ... Synonym: caput ossis metatarsalis. ... (05 Mar 2000) ...

head of pancreas
That portion of the pancreas lying in the concavity of the duodenum. ... Synonym: caput pancreatis. ... (05 Mar 2000) ...

head of phalanx
The rounded articular surface at the distal end of the proximal and middle phalanx of each finger and toe. ... Synonym: caput phalangis, trochlea phalangis. ... (05 Mar 2000) ...

head of radius
The disk-shaped upper extremity articulating with the capitulum of the humerus. ... Synonym: caput radii. ... (05 Mar 2000) ...

head of rib
The rounded medial extremity of a rib which, except for ribs 1, 10, 11, and 12, articulates by two facets with the bodies of two contiguous vertebrae. ... Synonym: caput costae. ... (05 Mar 2000) ...

head of stapes
The portion of the stapes that articulates with the lenticular process of the incus. ... Synonym: caput stapedis. ... (05 Mar 2000) ...

head of talus
The rounded anterior portion of the talus articulating with the navicular bone. ... Synonym: caput tali. ... (05 Mar 2000) ...

head of the caudate nucleus
The head or anterior extremity of the caudate nucleus projecting into the anterior horn of the lateral ventricle. ... Synonym: caput nuclei caudati, anterior extremity of caudate nucleus. ... (05 Mar 2000) ...

head of ulna
The small rounded distal extremity of the ulna articulating with the ulnar notch of the radius and the articular disk. ... Synonym: caput ulnae. ... (05 Mar 2000) ...

head presentation
Synonym for cephalic presentation ... Presentation of any part of the foetal head, usually the upper and back part as a result of flexion such that the chin is in contact with the thorax in vertex presentation; there may be degrees of flexion so that the presenting part is the large fontanel in sincipital presentation, the brow in brow presentation, …

head process
The primordium for the notochord. ... See: notochordal process. ... (05 Mar 2000) ...

head protective devices
Personal devices for protection of heads from impact, penetration from falling and flying objects, and from limited electric shock and burn. ... (12 Dec 1998) ...

head tetanus
Synonym for cephalic tetanus ... A type of local tetanus that follows wounds to the face and head; after a brief incubation (1-2 days) the facial and ocular muscles become paretic yet undergo repeated tetanic spasms. The throat and tongue muscles may also be affected. ... Synonym: cerebral tetanus, head tetanus, hydrophobic tetanus, rose cephalic tet …

head tremors
Synonym for head-nodding ... Head movements associated with congenital nystagmus, spasmus nutans, and miner's nystagmus. ... Synonym: head tremors. ... (05 Mar 2000) ...

head-bobbing doll syndrome
<syndrome> Bobbing motion of the head usually due to cysts in or about the third ventricle. ... (05 Mar 2000) ...

head-down tilt
Posture while lying with the head lower than the rest of the body. Extended time in this position is associated with temporary physiologic disturbances. ... (12 Dec 1998) ...

head-dropping test
A test used in the diagnosis of disease of the extrapyramidal or striatal system (e.g., parkinsonism, Wilson's disease); with the patient supine, relaxed, and his attention diverted, the examiner briskly lifts the patient's head with the right hand and then allows it to drop upon the palm of his left hand; the head of a normal person drops suddenly …

head-nodding
Head movements associated with congenital nystagmus, spasmus nutans, and miner's nystagmus. ... Synonym: head tremors. ... (05 Mar 2000) ...

head-tilt
An abnormal position of the head adopted to prevent double vision resulting from underaction of the vertical ocular muscles. ... (05 Mar 2000) ...

Head, Sir Henry
<person> English neurologist, 1861-1940. ... See: Head's areas, Head's lines, Head's zones. ... (05 Mar 2000) ...

Head's areas
Area's of skin exhibiting reflex hyperesthesia and hyperalgesia due to visceral disease. ... (05 Mar 2000) ...

Head's lines
Bands of cutaneous hyperesthesia associated with acute or chronic inflammation of the viscera. ... Synonym: Head's zones, tender lines, tender zones. ... (05 Mar 2000) ...

Head's zones
Synonym for Head's lines ... Bands of cutaneous hyperesthesia associated with acute or chronic inflammation of the viscera. ... Synonym: Head's zones, tender lines, tender zones. ... (05 Mar 2000) ...

headache
Pain in various parts of the head, not confined to the area of distribution of any nerve. ... See: cephalodynia. ... Synonym: cephalalgia, cephalea, cerebralgia, encephalalgia, encephalodynia. ... (05 Mar 2000) ...

headdress
1. A covering or ornament for the head; a headtire. 'Among birds the males very often appear in a most beautiful headdress, whether it be a crest, a comb, a tuft of feathers, or a natural little plume.' (Addison) ... 2. A manner of dressing the hair or of adorning it, whether with or without a veil, ribbons, combs, etc. ... Source: Websters Dictionar …

header
A pipe from which two or more tributary pipes run. ... (05 Dec 1998) ...

headgear
A removable extraoral appliance used as a source of traction to apply force to the teeth and jaws. ... (05 Mar 2000) ...

headgut
Synonym for foregut ... <anatomy, gastroenterology> The anterior part of the alimentary canal, from the mouth to the intestine, or to the entrance of the bile duct. ... (06 Mar 1998) ...

heading
1. The act or state of one who, or that which, heads; formation of a head. ... 2. That which stands at the head; title; as, the heading of a paper. ... 3. Material for the heads of casks, barrels, etc. ... 4. <chemical> A gallery, drift, or adit in a mine; also, the end of a drift or gallery; the vein above a drift. ... 5. The extension of a line …

headwaters
Headwaters means non-tidal rivers, streams, and their lakes and impoundments, including adjacent wetlands, that are part of a surface tributary system to an interstate or navigable water of the U.S. Upstream of the point on the river or stream at which the average annual flow is less than five cubic feet per second. The Corps of Engineers may estim …

Heaf test
<investigation> A commonly used tuberculin test in which tuberculin is injected intradermally with a multiple puncture apparatus. A positive reaction indicates the presence of T-cell reactivity to mycobacterial products. ... (18 Nov 1997) ...

heal
1. To make hale, sound, or whole; to cure of a disease, wound, or other derangement; to restore to soundness or health. 'Speak the word only, and my servant shall be healed.' (Matt. Viii. 8) ... 2. To remove or subdue; to cause to pass away; to cure; said of a disease or a wound. 'I will heal their backsliding.' (Hos. Xiv. 4) ... 3. To restore to ori …

healed tuberculosis
A scar or a calcified, fibrous, or caseous nodule in the lung pleura, lymph node, or other organ, resulting from previous tuberculosis that has regressed; reactivation is possible. ... Synonym: arrested tuberculosis, inactive tuberculosis. ... (05 Mar 2000) ...

healed ulcer
An ulcer covered by epithelial regeneration, beneath which there may be scarring and absence of glands or appendages. ... (05 Mar 2000) ...

healer
1. A physician; one who heals or cures. ... 2. One who claims to cure by prayer, mysticism, new thought, or other form of suggestion. ... (05 Mar 2000) ...

healing
1. Restoring to health; promoting the closure of wounds and ulcers. ... 2. The process of a return to health. ... 3. Closing of a wound. ... See: union. ... (05 Mar 2000) ...

healing by first intention
Healing by fibrous adhesion, without suppuration or granulation tissue formation. ... Synonym: primary adhesion, primary union. ... (05 Mar 2000) ...

healing by second intention
Delayed closure of two granulating surfaces. ... Synonym: secondary adhesion, secondary union. ... (05 Mar 2000) ...

healing by third intention
The slow filling of a wound cavity or ulcer by granulations, with subsequent cicatrization. ... (05 Mar 2000) ...

health
1. The state of being hale, sound, or whole, in body, mind, or soul; especially, the state of being free from physical disease or pain. 'There is no health in us.' (Book of Common Prayer) 'Though health may be enjoyed without gratitude, it can not be sported with without loss, or regained by courage.' (Buckminster) ... 2. A wish of health and happin …

health and human services
See HHS. ... (12 Dec 1998) ...

health behaviour
Behaviours expressed by individuals to protect, maintain or promote their health status. For example, proper diet, and appropriate exercise are activities perceived to influence health status. Lifestyle is closely associated with health behaviour and factors influencing life style are socioeconomic, educational, and cultural. ... (12 Dec 1998) ...

health benefit plans, employee
Health insurance plans for employees, and generally including their dependents, usually on a cost-sharing basis with the employer paying a percentage of the premium. ... (12 Dec 1998) ...

health care
Services provided to individuals or communities by agents of the health services or professions for the purpose of promoting, maintaining, monitoring, or restoring health. ... (05 Mar 2000) ...

health care coalitions
Voluntary groups of people representing diverse interests in the community such as hospitals, businesses, physicians, and insurers, with the principal objective to improve health care cost effectiveness. ... (12 Dec 1998) ...

health care costs
The actual costs of providing services related to the delivery of health care, including the costs of procedures, therapies, and medications. It is differentiated from health expenditures, which refers to the amount of money paid for the services, and from fees, which refers to the amount charged, regardless of cost. ... (12 Dec 1998) ...

health care evaluation mechanisms
Methods and techniques used in evaluating the quality of health care, its planning, and delivery. ... (12 Dec 1998) ...

health care finance administration
See: HCFA. ... (12 Dec 1998) ...

health care proxy
A health care proxy is one form of advance medical directive. Advance medical 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 are two basic forms of advance directives: (1) a li …

health care rationing
Planning for the equitable allocation, apportionment, or distribution of available health resources. ... (12 Dec 1998) ...

health care reform
Innovation and improvement of the health care system by reappraisal, amendment of services, and removal of faults and abuses in providing and distributing health services to patients. It includes a re-alignment of health services and health insurance to maximum demographic elements (the unemployed, indigent, uninsured, elderly, inner cities, rural …

health care sector
Economic sector concerned with the provision, distribution, and consumption of health care services and related products. ... (12 Dec 1998) ...

health care surveys
Statistical measures of utilization and other aspects of the provision of health care services including hospitalization and ambulatory care. ... (12 Dec 1998) ...

health centre
An institution or group of institutions providing all types of medical care and preventive services to a population. ... (05 Mar 2000) ...

health education
Education that increases the awareness and favourably influences the attitudes and knowledge relating to the improvement of health on a personal or community basis. ... (12 Dec 1998) ...

health education, dental
Education which increases the awareness and favourably influences the attitudes and knowledge relating to the improvement of dental health on a personal or community basis. ... (12 Dec 1998) ...

health expenditures
The amounts spent by individuals, groups, nations, or private or public organizations for total health care and/or its various components. These amounts may or may not be equivalent to the actual costs (health care costs) and may or may not be shared among the patient, insurers, and/or employers. ... (12 Dec 1998) ...

health facilities
Institutions which provide medical or health-related services. ... (12 Dec 1998) ...

health facilities, proprietary
Health care institutions operated by private groups or corporations for a profit. ... (12 Dec 1998) ...

health facility administrators
Managerial personnel responsible for implementing policy and directing the activities of health care facilities such as nursing homes. ... (12 Dec 1998) ...

health facility closure
The closing of any health facility, e.g., health centres, residential facilities, and hospitals. ... (12 Dec 1998) ...

health facility environment
Physical surroundings or conditions of a hospital or other health facility and influence of these factors on patients and staff. ... (12 Dec 1998) ...

health facility merger
The combining of administrative and organizational resources of two or more health care facilities. ... (12 Dec 1998) ...

health facility moving
The relocation of health care institutions or units thereof. The concept includes equipment relocation. ... (12 Dec 1998) ...

health facility planning
Areawide planning for health care institutions on the basis of projected consumer need. ... (12 Dec 1998) ...

health facility size
The physical space or dimensions of a facility. Size may be indicated by bed capacity. ... (12 Dec 1998) ...

health fairs
Community health education events focused on prevention of disease and promotion of health through audiovisual exhibits. ... (12 Dec 1998) ...

health food
A non-medical term defined by the lay public as a food that has little or no preservatives, which has not undergone major processing, enrichment or refinement and which may be grown without pesticides. Health foods have been attributed with the ability to prevent the development of diseases, slow the aging process, and prolong life. ... (12 Dec 1998 …

health indicator
Variable, susceptible to direct measurement, that reflects the state of health of persons in a community. ... (05 Mar 2000) ...

health maintenance organization
A comprehensive prepaid system of health care with emphasis on the prevention and early detection of disease, and continuity of care.HMOs may be nonprofit or profit-making ventures, and along with PPOs and managed care plans have come to define the U.S. Health care scene. HMOs generally offer a package of services; however, the choice of physician …

health maintenance organizations
Organised systems for providing comprehensive prepaid health care that have five basic attributes: 1) provide care in a defined geographic area; 2) provide or ensure delivery of an agreed-upon set of basic and supplemental health maintenance and treatment services; 3) provide care to a voluntarily enrolled group of persons; 4) require their enrolle …

health manpower
The availability of health personnel. It includes the demand and recruitment of both professional and allied health personnel, their present and future supply and distribution, and their assignment and utilization. ... (12 Dec 1998) ...

health occupations
Professions or other business activities directed to the cure and prevention of disease. For occupations of medical personnel who are not physicians but who are working in the fields of medical technology, physical therapy, etc., allied health occupations is available. ... (12 Dec 1998) ...

health outcomes research
The measurement of the value of a particular course of therapy. Health outcomes research is based on the principle that every clinical intervention produces a change in the health status of a patient and that change can be measured. ... (12 Dec 1998) ...

health personnel
Men and women working in the provision of health services, whether as individual practitioners or employees of health institutions and programs, whether or not professionally trained, and whether or not subject to public regulation. ... (12 Dec 1998) ...

health physics
The science concerned with problems of radiation protection relevant to reducing or preventing radiation exposure, and the effects of ionizing radiation on humans and their environment. ... (12 Dec 1998) ...

health plan implementation
Those actions designed to carry out recommendations pertaining to health plans or programs. ... (12 Dec 1998) ...

health planning
Planning for needed health and/or welfare services and facilities. ... (12 Dec 1998) ...

health planning councils
Organised groups serving in advisory capacities related to health planning activities. ... (12 Dec 1998) ...

health planning guidelines
Recommendations for directing health planning functions and policies. These may be mandated by pl93-641 and issued by the department of health and human services for use by state and local planning agencies. ... (12 Dec 1998) ...

health planning organizations
Organizations involved in all aspects of health planning activities. ... (12 Dec 1998) ...