Read the following statements carefully and select the correct ones.(i...
Smooth muscles are non-striated, unbranched and spindle shaped. Skeletal muscles are unbranched. Cardiac muscles fibres are uni-nucleated.
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Read the following statements carefully and select the correct ones.(i...
Introduction:
This question is related to the characteristics of different types of muscle tissues. We need to carefully analyze each statement and determine which ones are correct.
Analysis:
Let's analyze each statement one by one:
Statement (i): Cardiac fibres are branched with one or more nuclei.
This statement is correct. Cardiac muscle fibers are branched, allowing them to connect and coordinate with neighboring cells. They have one or more nuclei, which are centrally located within the fibers.
Statement (ii): Smooth muscles are unbranched and cylindrical.
This statement is incorrect. Smooth muscle fibers are spindle-shaped and tapered at both ends. They are not cylindrical in shape. However, smooth muscles are generally unbranched.
Statement (iii): Skeletal muscles can be branched or unbranched.
This statement is incorrect. Skeletal muscles are always unbranched. They are long, cylindrical fibers that run parallel to each other and attach to bones via tendons. Unlike cardiac muscles, skeletal muscles do not have branching fibers.
Statement (iv): Smooth muscles are non-striated.
This statement is correct. Smooth muscles lack striations or striped appearance, which is a characteristic feature of skeletal and cardiac muscles. Smooth muscles have a smooth and uniform appearance under the microscope.
Conclusion:
Based on our analysis, the correct statements are:
(i) Cardiac fibres are branched with one or more nuclei.
(iv) Smooth muscles are non-striated.
Therefore, the correct answer is option A, which states that only statement (iv) is correct.
Read the following statements carefully and select the correct ones.(i...
1- cardiac muscles are uni nucleated
2- smooth muscles are spindle shaped
3- skeletal muscles are unbranched
4- it is correct
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