The smallest, functional unit of contraction is the:
1. | muscle fiber | 2. | sarcomere |
3. | myofilament | 4. | myofibril |
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 |
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 |
A bone disorder especially seen in post-menopausal women would be:
1. | Rheumatoid arthritis | 2. | Rickets |
3. | Bone cancer | 4. | Osteoporosis |
The total number of floating ribs in human skeleton is:
1. | 2 | 2. | 4 |
3. | 6 | 4. | 14 |
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 |
The joint between atlas and axis vertebra is classified as:
1. | Saddle joint | 2. | Pivot joint |
3. | Gliding joint | 4. | Hinge joint |
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 |
A flat bone present on the ventral midline of thorax is called as:
1. | Hyoid | 2. | Clavicle |
3. | Sternum | 4. | Vertebral body |