1. Tardigrade
  2. Question
  3. Biology
  4. Which of the following properties of cardiac muscles are correct? I. These are the muscles of the heart. II. These are non-striated. III. These are involuntary in their functions. IV. These are controlled by nervous system directly. Select the correct option.

Q. Which of the following properties of cardiac muscles are correct?
I. These are the muscles of the heart.
II. These are non-striated.
III. These are involuntary in their functions.
IV. These are controlled by nervous system directly.
Select the correct option.

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Solution:

Statements I and III are correct regarding the properties of cardiac muscles. Statements II and IV are incorrect and can be corrected as
- Many cardiac muscle cells assemble in a branching pattern to form a cardiac muscle. Based on appearance, these are striated.
- These are involuntary in nature as the nervous system does not control their activities directly.