| 영문 | retina | 한글 | 망막 |
|---|---|---|---|
| 설명 | 빛의 수용기로서, 두께 0.5~1mm의 그물모양구조를 이루며, 눈알의 신경부에 해당한다. 외측에 색소상피층, 시각세포(원뿔세포, 막대세포)의 층, 쌍극세포층, 신경절세포층, 가장 안쪽에는 신경섬유층이 있다. 눈에 들어온 빛은 신경섬유층, 신경절세포층, 쌍극세포층을 통과해 시각세포에 도달하며, 이곳에서 감광색소와 광화학적변화를 일으킨다. 이 변화를 쌍극세포로 전달하고 다시 중추로 전달하여 빛으로 감각된다. 망막의 부위에 따라 시각세포 분포가 달라, 황반이라고 불리는 부위에서는 원뿔세포만이 존재하며, 그 주위는 막대체세포가 많다. 시각신경이 들어오는 부위인 유두부에는 시각세포가 결여되어, 빛을 느끼지 않는다. 이것이 맹점이다. 망막 후부의 중앙에는 가장 예민한 황반이 있고, 황반의 중앙에는 막대시각세포가 없는 중심오목이 있다. 중심오목과 안쪽 약 0.25cm에는 시각신경 및 망막중심동맥이 들어가는 점이 있다. 이곳에서 망막은 불완전하며 맹점을 형성한다. |
||
| CRAO | Central Retina Artery Occlusion |
|---|---|
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
| RET | reticular; reticulocyte; retina; retention; retained; right esotropia |
| TOP | termination of pregnancy; topoisomerase |
| micro-CT | Micro-computed tomography |
|---|---|
| BBTV | Banana bunchy top virus |
| BCTV | Beet curly top virus |
| TOP | termination of pregnancy |
| ART | Arm-retina time |
| top | 1. To cover on the top; to tip; to cap; chiefly used in the past participle. "Like moving mountains topped with snow." (Waller) "A mount Of alabaster, topped with golden spires." (Milton) 2. To rise above; to excel; to outgo; to surpass. "Topping all others in boasting." (Shak) "Edmund the base shall top the legitimate." (Shak) 3. To rise to the top of; to go over the top of. "But wind about till thou hast topped the hill." (Denham) 4. To take off the or upper part of; to crop. "Top your rose trees a little with your knife." (Evelyn) 5. To perform eminently, or better than before. "From endeavoring universally to top their parts, they will go universally beyond them." (Jeffrey) 6. To raise one end of, as a yard, so that that end becomes higher than the other. To top off, to complete by putting on, or finishing, the top or uppermost part of; as, to top off a stack of hay; hence, to complete; to finish; to adorn. 1. A child's toy, commonly in the form of a conoid or pear, made to spin on its point, usually by drawing off a string wound round its surface or stem, the motion being sometimes continued by means of a whip. 2. A plug, or conical block of wood, with longitudital grooves on its surface, in which the strands of the rope slide in the process of twisting. Origin: CF. OD. Dop, top, OHG, MNG, & dial. G. Topf; perhaps akin to G. Topf a pot. 1. The highest part of anything; the upper end, edge, or extremity; the upper side or surface; summit; apex; vertex; cover; lid; as, the top of a spire; the top of a house; the top of a mountain; the top of the ground. "The star that bids the shepherd fold, Now the top of heaven doth hold." (Milton) 2. The utmost degree; the acme; the summit. "The top of my ambition is to contribute to that work." (Pope) 3. The highest rank; the most honorable position; the utmost attainable place; as, to be at the top of one's class, or at the top of the school. "And wears upon hisbaby brow the round And top of sovereignty." (Shak) 4. The chief person; the most prominent one. "Other . . . Aspired to be the top of zealots." (Milton) 5. The crown of the head, or the hair upon it; the head. "From top to toe" "All the stored vengeance of Heaven fall On her ungrateful top !" (Shak) 6. The head, or upper part, of a plant. "The buds . . . Are called heads, or tops, as cabbageheads." (I. Watts) 7. A platform surrounding the head of the lower mast and projecting on all sudes. It serves to spead the topmast rigging, thus strengheningthe mast, and also furnishes a convenient standing place for the men aloft. 8. A bundle or ball of slivers of comkbed wool, from which the noils, or dust, have been taken out. 9. Eve; verge; point. "He was upon the top of his marriage with Magdaleine." 10. The part of a cut gem between the girdle, or circumference, and the table, or flat upper surface. Top is often used adjectively or as the first part of compound words, usually self-explaining; as, top stone, or topstone; top-boots, or top boots; top soil, or top-soil. Top and but, a phrase used to denote a method of working long tapering planks by bringing the but of one plank to the top of the other to make up a constant breadth in two layers. <zoology> Top minnow, a small viviparous fresh water fish (Gambusia patruelis) abundant in the Southern United States. Also applied to other similar species. Origin: AS. Top; akin to OFries. Top a tuft, D. Top top, OHG. Zopf end, tip, tuft of hair, G. Zopf tuft of hair, pigtail, top of a tree, Icel. Toppr a tuft of hair, crest, top, Dan. Top, Sw. Topp pinnacle, top; of uncertain origin. Cf. Tuft. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| top-shaped | <botany> Having the shape of a top; cone-shaped, with the apex downward; turbinate. Source: Websters Dictionary (01 Mar 1998) |
| top-shell | <zoology> Any one of numerous species of marine top_shaped shells of the genus Thochus, or family Trochidae. Source: Websters Dictionary (01 Mar 1998) |
| turban-top | <botany> A kind of fungus with an irregularly wrinkled, somewhat globular pileus (Helvella, or Gyromitra, esculenta). Source: Websters Dictionary (01 Mar 1998) |
| flat top waves | Activity in the electroencephalogram having a pattern suggesting a flat top; these wave's are often found in temporal lobe discharges. (05 Mar 2000) |
| candida micro-abscesses | <radiology> Multiple small hypodense (and hypoechoic) lesions, in liver with or without spleen, often target lesions, Candida albicans mycelia, immunocompromised patients, such as leukaemics Differential diagnosis: metastasis (larger), leukaemic infiltration (nodular or tumefactive deposits rare), miriad small lesions most likely to be pathognomonic for Candida (12 Dec 1998) |
| micro- | 1. <prefix> A combining form signifying small, little, trivial, slight; as, microcosm, microscope. A millionth part of; as, microfarad, microohm, micrometer. 2. <physics> Metric prefix indicating 1/1,000,000th of a given quantity. For example, a microampere is 1/1,000,000th of an ampere. Origin: Gr. Small. (29 Oct 1998) |
| micro-Astrup method | An interpolation technique for acid-base measurement, based on pH and the use of the Siggaard-Andersen nomogram to determine the base deficit as an expression of metabolic acidosis and the arterial PCO2 as an expression of respiratory acidosis or alkalosis. (05 Mar 2000) |
| micro-chemical | Of or pertaining to microchemistry; as, a micro-chemical test. Source: Websters Dictionary (01 Mar 1998) |
| micro-disc surgery | This describes a newer form of orthopaedic back surgery involving the insertion of a special hardware device through a small incision in the lower back. This form of surgery is indicated for those with intractable (unresponsive to medical therapy alone) disk disease of the lower spine (typically lumbar). The prolapsed disk is suction out of the back via a small tube inserted through the incision. (27 Sep 1997) |
| micro-geological | Of or pertaining to micro-geology. Source: Websters Dictionary (01 Mar 1998) |
| micro-geology | <study> The part of geology relating to structure and organisms which require to be studied with a microscope. Origin: Micro- + geology. Source: Websters Dictionary (01 Mar 1998) |
| micro-immunofluorescence | Several different substrates are arranged in specific locations on a single microscope slide well allowing a rapid, simultaneous indirect fluorescent antibody on each substrate. (05 Mar 2000) |
| micro-Kjeldahl method | A modification of the macro-Kjeldahl method designed for the analysis of nitrogenous compounds in relatively small quantities, e.g., specimens in which the total content of nitrogen is in the range of 1 to a few mg. (05 Mar 2000) |
| micro-ohm | <physics> The millionth part of an ohm. Origin: Micr- + ohm. Source: Websters Dictionary (01 Mar 1998) |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
|---|