What Would You Call the Cells Which Cause the Contractions

Question

What would you call the cells which cause the contractions of the heart?
A) skeletal muscle cells
B) cardiac muscle cells
C) smooth muscle cells
D) fibroblasts
E) chondrocyte cells

Accepted Answer

Cardiac muscle cells, also known as myocardial cells, cause the contraction of the heart. Unlike skeletal muscle cells, they have a unique ability to initiate their own contractions without an external stimulus, known as pacemaker activity. Smooth muscle cells are found in organs like the uterus and blood vessels, and are not involved in the contraction of the heart. Fibroblasts are connective tissue cells that produce collagen and other extracellular materials, while chondrocyte cells are found in cartilage.