Match the Column I with Column II :
| Column I (Biomedical techniques) | Column II(Features) |
| A. Computed tomography | 1. A piece of the suspected tissue cut into thin sections, stained and examined under microscope |
| B. Blood or Bone marrow test | 2. X-rays are used to detect cancer of the internal organs |
| C. Radiography | 3. Leukaemia |
| D. Biopsy | 4. Uses X-rays to generate a three- dimentional image of the internals of an object |
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) - A-4,B-3,C-2,D-1
| Column I (Biomedical techniques) | Column II(Features) |
| A. Computed tomography | 4. Uses X-rays to generate a three- dimentional image of the internals of an object |
| B. Blood or Bone marrow test | 3. Leukaemia |
| C. Radiography | 2. X-rays are used to detect cancer of the internal organs |
| D. Biopsy | 1. A piece of the suspected tissue cut into thin sections, stained and examined under microscope |
Cancer detection is based on biopsy and histopathological studies of the tissue and blood and bone marrow tests for increased cell counts in the case of leukemias. In biopsy, a piece of the suspected tissue cut into thin sections is stained and examined under microscope (histopathological studies) by a pathologist. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Computed tomography uses X-rays to generate a three-dimensional image of the internals of an object. MRI uses strong magnetic fields and non-ionising radiations to accurately detect pathological and physiological changes in the living tissues.