GENERAL HISTOLOGY

Detailed explanation-1: -The 3 types of muscle tissue are cardiac, smooth, and skeletal. Cardiac muscle cells are located in the walls of the heart, appear striped (striated), and are under involuntary control.

Detailed explanation-2: -There are two major types of cardiac muscle fibers: myocardial contractile cells and myocardial conducting cells (pacemaker cells). The myocardial contractile cells constitute the bulk (99%) of the cells in the atria and ventricles and are responsible for contractions that pump blood through the body.

Detailed explanation-3: -Cardiac muscles are said to be involuntary because they are not controlled by our will. These muscles are found in heart and are the only muscles which work throughout the life without getting tired or fatigue.