A muscle cell is called as a:
1. | sarcomere | 2. | fiber |
3. | myofibril | 4. | myofilament |
The Z line is present in:
1. | A band | 2. | H zone |
3. | I band | 4. | M line |
The joint between skull bones is classified as:
1. | cartilaginous | 2. | fibrous |
3. | epithelial | 4. | synovial |
The part of the sarcomere that is composed of only myosin myofilaments is:
1. | A band | 2. | I band |
3. | M line | 4. | H zone |
A neuromuscular disorder that causes weakness in the skeletal muscles is:
1. | poliomyelitis | 2. | myasthenia gravis |
3. | multiple sclerosis | 4. | muscular dystrophy |
What happens during the contraction of a skeletal muscle fiber?
1. | The myosin filaments stay the same size but the actin filaments shorten |
2. | The sarcomeres shorten |
3. | The actin filaments stay the same size but the myosin filaments shorten |
4. | Both actin and myosin filaments shorten |
What is number of bones in a human adult?
1. | 150 | 2. | 300 |
3. | 250 | 4. | 206 |
Cross bridge formation during muscle contraction involves:
1. | troponin and actin | 2. | tropomyosin and myosin |
3. | myosin and troponin | 4. | myosin and actin |
Classification of joints is done on the basis of:
I: | the connective tissue that binds the bones together |
II: | the degree of motion at each joint |
III: | the number of bones that articulate with each other |
IV: | the embryonic tissue that formed the joint |
1. | I, II and III | 2. | II and III |
3. | I, II, III and IV | 4. | I and II |
The fibrous joint between skull bones is called as:
1. | gomphoses | 2. | syndesmoses |
3. | symphysis | 4. | sutures |