hjartavöðvinn
Hjartavöðvinn is the Icelandic term for the heart muscle, also known as the myocardium. It is a specialized type of muscle tissue found only in the heart of vertebrates. The primary function of hjartavöðvinn is to pump blood throughout the body. This muscle is involuntary, meaning its contractions are not under conscious control.
The structure of hjartavöðvinn is unique, composed of branched cardiac muscle cells called cardiomyocytes. These cells
Hjartavöðvinn is highly resistant to fatigue due to its abundant mitochondria, which provide ample energy for