Q. No.Low Ca2+ in the body fluid may be the cause of:
1. tetany
2. anaemia
3. angina pectoris
4. gout
The length of which of the following regions shown in the given diagram of a sarcomere remains unchanged during muscle contraction?
1. 1
2. 2
3. 7
4. 6
Elbow joint is an example of:
1. Pivot joint
2. Hinge joint
3. Glinding joint
4. ball and socket joint
Which one of the following is the correct matching of three items and their grouping category?
| Items | Group | |
| 1. | Malleus, incus cochlea | Ear ossicles |
| 2. | Ilium, ischium, pubis | Coxal bones of pelvic girdle |
| 3. | Actin, myosin rhodopsin | Muscle proteins |
| 4. | Cytosine, uracil thiamine | pyrimidines |
Which of the following muscular disorders is inherited?
1. Botulism
2. Tetany
3. Muscular dystrophy
4. Myasthenia gravis
Select the correct option.
| 1. | There are seven pairs of vertebrosternal, three pairs of vertebrochondral and two pairs of vertebral ribs. |
| 2. | 8th, 9th and 10th pairs of ribs articulate directly with the sternum. |
| 3. | 11th and 12th pairs of ribs are connected to the sternum with the help of hyaline cartilage. |
| 4. | Each rib is a flat thin bone and all the ribs are connected dorsally to the thoracic vertebrae and ventrally to the sternum. |
Select the correct statement with respect to locomotion in humans:
| 1. | Accumulation of uric crystals in joints causes inflammation |
| 2. | The vertebral column has 10 thoracic vertebrae |
| 3. | The joint between adjacent vertebrae is a fibrous joint |
| 4. | The decreased level of progesterone causes osteoporosis in old people |
Stimulation of a muscle fiber by a motor neuron occurs at:
1. the neuromuscular junction
2. the transverse tubules
3. the myofibril
4. the sarcoplasmic reticulum
If production of pyruvic acid by anaerobic metabolism in a muscle is faster than it can be utilized, the surplus is converted to:
1. lactic acid
2. adenosine diphosphate
3. carboxylic acid
4. creatine phosphokinase
Identify the incorrectly matched pair:
| Joint type | Example | |
| 1. | Hinge | Knee |
| 2. | Pivot | Between atlas and axis vertebra |
| 3. | Gliding | Between the metacarpals |
| 4. | Saddle | Between carpal and metacarpal of thumb |
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