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How many of the following features belon...

How many of the following features belong to skeletal muscles?
I. Striped appearance
II. Voluntary nature
III. Not under the control of CNS
IV. Primarily involved in locomotory actions.
(a) one
(b) two
(c) three
(d) four

A

one

B

two

C

three

D

four

Text Solution

AI Generated Solution

The correct Answer is:
To determine how many of the listed features belong to skeletal muscles, we will evaluate each feature one by one: **Step 1: Evaluate the first feature - Striped appearance** - Skeletal muscles have a striped or striated appearance due to the arrangement of myosin and actin filaments. This feature is characteristic of skeletal muscle. - **Conclusion**: This feature belongs to skeletal muscles. **Step 2: Evaluate the second feature - Voluntary nature** - Skeletal muscles are indeed voluntary muscles, meaning they can be consciously controlled. This is a defining characteristic of skeletal muscles. - **Conclusion**: This feature belongs to skeletal muscles. **Step 3: Evaluate the third feature - Not under the control of CNS** - This statement is incorrect. Skeletal muscles are under the control of the central nervous system (CNS). Therefore, this feature does not belong to skeletal muscles. - **Conclusion**: This feature does NOT belong to skeletal muscles. **Step 4: Evaluate the fourth feature - Primarily involved in locomotory actions** - Skeletal muscles are primarily responsible for locomotion and movement. They contract and relax to facilitate movement, which is a key function of these muscles. - **Conclusion**: This feature belongs to skeletal muscles. **Final Assessment:** - Features that belong to skeletal muscles: 1. Striped appearance (Yes) 2. Voluntary nature (Yes) 3. Not under the control of CNS (No) 4. Primarily involved in locomotory actions (Yes) **Total features belonging to skeletal muscles**: 3 out of 4. **Answer**: (c) three ---
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