Academic GK

Electromyography (EMG) is a diagnostic procedure used to assess the health of muscles and the nerve cells controlling them (motor neurons). It involves recording the electrical activity produced by muscles during contraction and at rest. Here are key points about electromyography: 1. **Purpose:** EMG is used to evaluate muscle and nerve function. It helps diagnose conditions such as muscle disorders, nerve disorders, and neuromuscular junction disorders. 2. **Procedure:** During EMG, a small, thin needle electrode is inserted into the muscle being tested. The electrical activity detected by the electrode is displayed on an oscilloscope or recorded for analysis. 3. **Types of EMG:**  - **Surface EMG:** Electrodes are placed on the skin over the muscles.  - **Needle EMG:** Involves inserting a needle electrode directly into the muscle tissue. 4. **Muscle Activity:** EMG provides information about the electrical activity of muscles, including the timing and pattern of muscle c

1. What is the basic unit of life? Ans. Cell 2. Which gas do plants absorb during photosynthesis? Ans. Carbon dioxide (CO2) 3. What is the powerhouse of the cell? Ans. Mitochondria 4. Name the process by which cells divide into two identical daughter cells. Ans. Mitosis 5. What is the largest organ in the human body? Ans. Skin 6. Which gas do humans primarily exhale during respiration? Ans. Carbon dioxide (CO2) 7. Name the process by which green plants make their own food. Ans. Photosynthesis 8. Which molecule stores genetic information in cells? Ans. DNA (Deoxyribonucleic acid) 9. What is the role of enzymes in biological reactions? Ans. Facilitate chemical reactions 10. Which part of the flower produces seeds? Ans. Ovary 11. What is the purpose of mitosis in cell division? Ans. Cell growth and repair 12. Name the three types of blood vessels in the human circulatory system. Ans. Arteries, veins, capillaries 13. What is the function of the nervous system in the body? Ans.