A motor neuron along with all the muscle fibers innervated by it constitute a:
1. Fascicle | 2. Motor end plate |
3. Motor unit | 4. Myoneural junction |
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The type of joint that will allow least mobility amongst the following would be:
1. Fibrous joint | 2. Primary cartilaginous joint |
3. Secondary cartilaginous joint | 4. Synovial joint |
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A bone disorder especially seen in post-menopausal women would be:
1. | Rheumatoid arthritis | 2. | Rickets |
3. | Bone cancer | 4. | Osteoporosis |
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The total number of floating ribs in human skeleton is:
1. | 2 | 2. | 4 |
3. | 6 | 4. | 14 |
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As the distance from Z line to Z line decreases, which bands shorten in a sarcomere?
1. | the I band and H band | 2. | the I band and A band |
3. | the A band and H band | 4. | all bands shorten |
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The joint between atlas and axis vertebra is classified as:
1. | Saddle joint | 2. | Pivot joint |
3. | Gliding joint | 4. | Hinge joint |
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All the following regarding red muscle fibers are true except:
1. They are adapted for slow and sustained activity
2. They have a high content of myoglobin
3. They are rich in mitochondria
4. They depend on anaerobic process for energy
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A flat bone present on the ventral midline of thorax is called as:
1. | Hyoid | 2. | Clavicle |
3. | Sternum | 4. | Vertebral body |
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The central part of the thick filaments not overlapped by the thin filaments is called as:
1. | A band | 2. | I band |
3. | H zone | 4. | Sarcomere |
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During relaxation of a skeletal muscle:
1. | Calcium ions that are bound to troponin C now bind to troponin A |
2. | Cross bridge formation between myosin head and actin takes place |
3. | The A band of the sarcomere lengthens |
4. | Calcium ions are pumped back to the sarcoplasmic cisternae |
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