One of the unpaired facial bones of the skull that takes part in the formation of the nasal septum is:
1. sphenoid
2. vomer
3. nasal bone
4. lacrimal bone
The largest ankle bone is:
1. cuboid
2. navicular
3. calcaneus
4. talus
A dense outer layer of vascular connective tissue enveloping the bones except at the surfaces of the joints is the:
1. epiphysis
2. diaphysis
3. articular cartilage
4. periosteum
What is number of bones in a human adult?
1. | 150 | 2. | 300 |
3. | 250 | 4. | 206 |
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In an adult, erythropoeisis will be maximum in:
1. femur
2. sternum
3. humerus
4. tibia
When a bone bends and cracks, instead of breaking completely into separate pieces, the fracture is called as:
1. greenstick
2. incomplete
3. compound
4. simple
The critical event for the contraction of striated muscles would be that calcium ions:
1. | are released from troponin C |
2. | bind to tropomyosin |
3. | bind to troponin |
4. | are taken up by the sarcoplasmic reticulum |
All the following shorten during muscle contraction except:
1. sarcomere
2. A bands
3. I bands
4. H bands
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Cross bridge formation during muscle contraction involves:
1. | troponin and actin | 2. | tropomyosin and myosin |
3. | myosin and troponin | 4. | myosin and actin |
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For the muscular movements to be coordinated, it is important that:
1. the muscle twitches must be of increasing strength.
2. muscle is divided into motor units
3. type I fibers must be more than type II fibers in a muscle
4. the muscle twitches undergo tetanization.