| set (psychology) | Readiness to think or respond in a predetermined way when confronted with a problem or stimulus situation. (12 Dec 1998) |
|---|---|
| set-up | 1. The arrangement of teeth on a trial denture base. 2. A procedure in dental case analysis involving cutting off and repositioning of teeth in the desired positions on a plaster cast. (05 Mar 2000) |
| ear, low-set | A minor anomaly involving an ear situated down below its normal location. Technically, the ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation. (12 Dec 1998) |
| first-set rejection | Allograft transplantation between two organisms not previously sensitised to the graft tissue. Necrosis of the graft usually occurs within 10 days of transplantation. (05 Mar 2000) |
| learning set | A readiness or predisposition to learn developed from previous learning experiences, as when an organism learns to solve each successive problem (of equal or increasing difficulty) in fewer trials. (05 Mar 2000) |
| low-set ear | An ear positionned below its normal location. Classified as a minor anomaly. Technically, the ear is low-set when the helix (of the ear) meets the cranium at a level below that of a horizontal plane through both inner canthi (the inside corners of the eyes). The presence of 2 or more minor anomalies in a child increases the probability that the child has a major malformation. (12 Dec 1998) |
| artery needle | A blunt-pointed, curved needle, set in a handle, with the eye at the point, used for passing a ligature around an artery. (05 Mar 2000) |
| aspirating needle | A hollow needle used for withdrawing fluid from a cavity, when combined with an aspirator tube attached to one end. (05 Mar 2000) |
| atraumatic needle | An eyeless surgical needle with the suture permanently fastened into a hollow end. (05 Mar 2000) |
| biopsy needle | <equipment> A skinny needle that is passed percutaneously into an organ being investigated (liver and kidney are common). Tissue is obtained from the core of the needle and then analysed under the microscope. (21 Mar 1998) |
| biopsy, pleural needle | <investigation, procedure, surgery> A pleural needle biopsy involves the use of a needle (inserted from the skin) to obtain a small sample of pleural tissue for microscopic analysis. The biopsy is done using a local anaesthetic. Abnormal results may reveal cancer (metastatic or primary), tuberculosis, a fungal disease, viral disease, a parasitic disease or collagen vascular disease. Risks include pneumothorax and internal bleeding. (21 Mar 1998) |
| Veress needle | A needle equipped with a spring loaded obturator that is used for insufflation of the abdomen in laparoscopic surgery. (05 Mar 2000) |
| Gillmore needle | A device for obtaining the setting time of dental cement. (05 Mar 2000) |
| cataract needle | A very narrow, needle-pointed knife used in discission of a cataract. Synonym: cataract needle. (05 Mar 2000) |
| Vicat needle | <equipment> A device for obtaining the setting time of plaster and other materials. (05 Mar 2000) |