Question

(ii) Write any two properties of Cardiac muscle.​

Answer 1

Answer:

Cardiac muscle cannot be stimulated while it is contracted, because its excitability during contraction is zero due to long absolute refractory period, so it cannot be tetanized. c. Cardiac muscle can perform both isometric and isotonic types of contractions.

Answer 2

Explanation:

• cells are found only in heart
• specialised to pump blood powerfully
• involuntary and intensely controlled
• has straited branched and single nucleauted