Question

A node is modified as _________.

• A. Cardiac muscle
• B. Nervous tissue
• C. Endocrine gland
• D. Connective tissue

Answer 1

The correct option is A Cardiac muscle

A. Cardiac Muscle

Solution : Cardiac muscles have nodes from which the nerve impulse arises that is transferred to the whole heart to generate a cardiac impulse and initiate beating. SA node (sino atrial node) that gives rise to the main impulse.

So, the correct answer is option A.