- 1(current)
Q. No.Smooth muscles are:
| 1. | Voluntary and striated |
| 2. | Voluntary and unstriated |
| 3. | Involuntary and unstraited |
| 4. | Involuntary and striated |
Subtopic: Cardiac Muscle & Smooth Muscle |
85%
From NCERT
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Smooth muscles are found in all the following locations except:
1. Wall of blood vessels
2. Wall of stomach
3. Wall of ureter
4. Wall of abdomen
Subtopic: Cardiac Muscle & Smooth Muscle |
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The structure labelled as A in the given figure:
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
| I: | allow the cells to contract as a unit, i.e., when one cell receives a signal to contract, its neighbours are also stimulated to contract. |
| II: | stop the passage of impulse from one cell to another in the tissue. |
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic: Cardiac Muscle & Smooth Muscle |
79%
From NCERT
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Presence of intercalated discs help cardiac muscles to act as a functional syncytium. This is possible because the structure of these discs have:
| 1. | Tight junctions | 2. | Gap junctions |
| 3. | Adhering junctions | 4. | Plasmodesmata |
Subtopic: Glandular Epithelium & Cell Junction | Cardiac Muscle & Smooth Muscle |
66%
From NCERT
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Consider the given two statements:
| Assertion (A): | Cardiac muscle cells can contract as a unit. |
| Reason (R): | Cardiac muscle tissue is a contractile tissue present only in the heart. |
| 1. | Both (A) and (R) are True and (R) correctly explains (A). |
| 2. | Both (A) and (R) are True but (R) does not correctly explain (A). |
| 3. | (A) is True; (R) is False |
| 4. | Both (A) and (R) are False |
Subtopic: Cardiac Muscle & Smooth Muscle |
57%
From NCERT
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- 1(current)
Q. No.
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