| 영문 | rebound phenomenon | 한글 | 반발현상, 반동현상 |
|---|---|---|---|
| 설명 | 소뇌 기능장애에서 사지의 대항근육 사이의 협조성 상실의 징후로서, 환자에게 양팔을 수평으로 뻗게 하고 그 팔을 강하게 치면 정상인 경우는 곧 원상으로 올리는데 비하여 환자에 있어서는 원위치로 돌아오는 데 몇 번이나 떨게 된다. |
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| 영문 | optic disk | 한글 | 시신경유두 |
|---|---|---|---|
| 설명 | 망막의 구조를 직상검안경(망막을 보기 위해 고안된 검사기구)으로 보면 다음과 같다. 망막에 혈액을 공급하는 망막동맥(retinal artery)과, 다시 혈액을 회수하는 망막정맥(retinal vein)은 다같이 시각신경(optic nerve)과 함께 시각신경구멍(optic foramen)을 통해 망막까지 이르게 된다. 즉, 이들 망막 동, 정맥은 시각신경속에 끼워진 채 망막까지 이르게 된다. 따라서 이들 망막 동, 정맥 주위에 존재하는 시각신경유두는 바로 시각신경의 일부분을 말한다. 빛의 자극을 이해할 수 있는 신호체계로 바꾸는 시각세포는 받아들인 자극을 시각신경에서 분지한 수많은 신경절세포(ganglion cell: 신경전달을 모아서 보다 큰 전달단위로 전해주는 역할을 하며, 망막내에 위치한다)로 전달하게 되고, 이들 신경절세포는 다시 이런 자극들을 모아 시각신경유두로 보내게 되며, 시각신경유두에서부터 신경전달은 뇌까지 진행한다.  |
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| 영문 | intervertebral disk | 한글 | 척추원반, 추간판 |
|---|---|---|---|
| 설명 | 척추동물에서 척주의 척추뼈 사이에 있는 원반처럼 생긴 척추뼈사이조직. 제2목뼈 이하 제5허리뼈와 엉치뼈바닥 사이에 있으며, 사람은 보통 23개이다. 개개의 원반은 중앙부가 가장 두껍다. 원반의 가쪽부는 결합조직과 섬유연골로 되어 있는 섬유테가 있고, 내부의 중앙은 연골세포군과 부드러운 섬유연골로 되어 있는 섬유테가 있고, 내부의 중앙은 연골세포군과 부드러운 섬유연골로 된 속질핵이 있으며, 여기에는 다량의 수분이 함유되어 있다. 척주의 부위에 따라서 원반의 두께가 다른데 등뼈가 가장 얇다. 이것은 그 구조상 강한 탄력성과 팽창성을 가지고 있으며, 척주의 굴신운동이나 척주를 중심으로 하는 몸의 지지에 중요한 역할을 하고 있다. 이러한 척추원반이 외상을 받아서 섬유륜의 퇴행변성을 일으켜 속질핵이 헤르니아를 일으킨 것을 척추원반탈출증이라고 한다. 척주의 운동은 이 척추원반의 탄력성과 척주 뒷부분의 척추관절에 의하여 가능하게 된다. |
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| VT | tetrazolium violet; total ventilation; vacuum tube; vacuum tuberculin; vasotonin; venous thrombosis;... |
|---|---|
| NFVVE | Normal Fullterm Vaginal Vacuum Extraction |
| VA | vacuum aspiration; valproic acid; vasodilator agent; ventricular aneurysm; ventricular arrhythmia; v... |
| vac | vacuum |
| VED | vacuum erection device; ventricular ectopic depolarization; vital exhaustion and depression |
| C/D | Cup/disk |
|---|---|
| PRP | Primary Raynaud's Phenomenon |
| RP | Raynaud Phenomenon |
| IVD | interactive video disk |
| MVA | Manual Vacuum Aspiration |
| vacuum disk phenomenon | The appearance of a radiolucent stripe in an intervertebral disk, a manifestation of disk degeneration; a misnomer since there is gas present. (05 Mar 2000) |
|---|
| vacuum | Origin: L, fr. Vacuus empty. See Vacuous. 1. <physics> A space entirely devoid of matter (called also, by way of distinction, absolute vacuum); hence, in a more general sense, a space, as the interior of a closed vessel, which has been exhausted to a high or the highest degree by an air pump or other artificial means; as, water boils at a reduced temperature in a vacuum. 2. The condition of rarefaction, or reduction of pressure below that of the atmosphere, in a vessel, as the condenser of a steam engine, which is nearly exhausted of air or steam, etc.; as, a vacuum of 26 inches of mercury, or 13 pounds per square inch. Vacuum brake, a kind of continuous brake operated by exhausting the air from some appliance under each car, and so causing the pressure of the atmosphere to apply the brakes. <medicine> Vacuum pan, a glass tube provided with platinum electrodes and exhausted, for the passage of the electrical discharge; a Geissler tube. Vacuum valve, a safety valve opening inward to admit air to a vessel in which the pressure is less than that of the atmosphere, in order to prevent collapse. Torricellian vacuum. See Torricellian. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| vacuum casting | The casting of a metal in the presence of a vacuum. (05 Mar 2000) |
| vacuum curettage | Aspiration of the contents of the uterus with a vacuum curette. (12 Dec 1998) |
| vacuum desiccator | A desiccator that can be evacuated. (05 Mar 2000) |
| vacuum extraction, obstetrical | Removal of the foetus from the uterus or vagina at or near the end of pregnancy with a metal traction cup that is attached to the foetus' head. Negative pressure is applied and traction is made on a chain passed through the suction tube. (12 Dec 1998) |
| vacuum extractor | Device for producing traction upon the head of a foetus by means of a soft cup held by a vacuum. (05 Mar 2000) |
| vacuum flask | <apparatus> A glass vessel, often silvered, with two walls, the space between which is evacuated; used for maintaining materials at constant temperature or, more usually, at low temperature. Synonym: vacuum flask. (05 Mar 2000) |
| vacuum headache | Headache due to closure of the frontal sinus. (05 Mar 2000) |
| vacuum pan | A device for growing crystals from solutions by gradually lowering the pressure within the sealed container holding the liquid. (09 Oct 1997) |
| vacuum tube | A glass tube from which the air has been removed, containing two or more electrodes, between which passes an electrical current or spark; used in the production of X-rays, or to control circuits. Previously in wide use, the vacuum tube has been supplanted by transistors in electronic circuits. (05 Mar 2000) |
| acromioclavicular disk | The articular disk of fibrocartilage usually found between the acromial end of the clavicle and the medial border of the acromion. Synonym: discus articularis acromioclavicularis, acromioclavicular disk, Weitbrecht's cartilage. (05 Mar 2000) |
| Airy disk | <microscopy> The image of a bright point object as focused by a lens system. With monochromatic light, it consists of a central point of maximum intensity surrounded by alternate circles of light and darkness caused by the reinforcement and interference of diffracted rays. The light areas are called maxima and the dark areas minima. The distribution of light from the centre to the outer areas of the figure was investigated mathematically by Sir George Airy. The diffraction disk forms a basis for determining the resolving power of an ideal lens system. The diameter of the disk depends largely on the aperture of the lens. The diffraction of light causing the Airy disk is a factor limiting the resolution of a well corrected optical system. The bright disk of light (surrounded by alternating dark and bright diffraction rings)that is formed by a perfect diffraction-limited lens, focusing an image of an infinitely small source of light. For a minute absorbing spot, the diffraction pattern is a dark Airy disk surrounded by brighter and darker diffraction rings. Since the Airy disk is the smallest unit that makes up the image of a luminous or absorbing object (formed by a properly corrected microscope lens in focus), the radius of the disk determines the limit of resolution of the microscope. (05 Aug 1998) |
| articular disk | A plate or ring of fibrocartilage attached to the joint capsule and separating the articular surfaces of the bones for a varying distance, sometimes completely; it serves to adapt two articular surfaces that are not entirely congruent. Synonym: discus articularis, articular disk, fibrocartilago interarticularis, fibroplate, interarticular fibrocartilage, intra-articular cartilage. (05 Mar 2000) |
| blastodermic disk | The aggregation of blastomeres of a telolecithal ovum after cleavage has occurred. (05 Mar 2000) |
| blood disk | <haematology> A discoid cell (3m diameter) found in large numbers in blood, important for blood coagulation and for haemostasis by repairing breaches (small breaks) in the walls of blood vessels. Platelet _ granules contain lysosomal enzymes, dense granules contain ADP (a potent platelet aggregating factor) and serotonin (a vasoactive amine). They also release platelet-derived growth factor which presumably contributes to later repair processes by stimulating fibroblast proliferation. Synonym: thrombocytes. (09 Oct 1997) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|