| Statement A: | The muscle bundles are bound together by a common collagenous sheath of connective tissue called fascia. |
| Statement B: | Muscle fibre is a syncytium as the sarcoplasm contains many nuclei. |
| 1. | Both statements A and B are correct |
| 2. | Both statements A and B are incorrect |
| 3. | Only statement A is incorrect |
| 4. | Only statement A is correct |
| (a) | Locomotion, changes of body postures and heat production are some of the functions of skeletal muscle tissue |
| (b) | Actin filaments are firmly attached to the Z-line |
| (c) | The portion of myofibril between non-consecutive 'Z' lines is called sacromere |
| (d) | Muscles constitute more than 50% of the body weight in an adult human |
| a | b | c | d | |
| 1. | T | T | T | T |
| 2. | T | F | F | T |
| 3. | T | T | F | F |
| 4. | F | T | T | T |
| Assertion (A): | Visceral muscles are called involuntary muscles. |
| Reason (R): | Visceral muscles are not under the voluntary control of the nervous system |
| 1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 2. | Both (A) and (R) are True, but (R) is not the correct explanation of (A). |
| 3. | (A) is True, but (R) is False. |
| 4. | (A) is False, but (R) is True. |
Match each item in Column I with one item in Column II and chose your answer from the codes given below:
|
Column I |
Column II |
|
I. Smooth muscle II. Skeletal muscle III. Cardiac muscle |
1. Striated, voluntary 2. Non-Striated, involuntary 3. Striated, Involuntary |
Codes:
I II III
1. 1 2 3
2. 3 1 2
3. 2 1 3
4. 1 3 2
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