Q. No.Osteoporosis, an age-related disease of skeletal system, may occur due to:
1.
junction leading to fatigue
2.
high concentration of ca++ and Na+
3.
decreased level of oestrogen
4.
accumulation of uric acid leading to inflammation of joints
Glenoid cavity articulates:
| 1. | clavicle with acromion | 2. | scapula with acromion |
| 3. | clavicle with scapula | 4. | humerus with scapula |
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
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 |
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. |
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