What is the microscopic anatomical make-up of cardiac muscles?

Cardiac muscles are make-up of cardiac muscle cells.

Explanation:

Cardiac muscle cells are a type of tubular cardiomyocytes, which make the cardiac muscles. The tissue of cardiac muscles found only in heart. the cardiac muscle appears striated due to the organization of muscle tissues. The myofibril make the composition of cardiomyocytes.  There is presence of Sarcomere in the muscle tissue.  The activity of myofibril is required for the contraction of muscle on the molecular level.

condensation. good luck!

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.