vöðvaefni
Vöðvaefni is an Icelandic term that translates to "muscle tissue" or "muscle material." It refers to the specialized biological tissue found in animals that has the unique ability to contract and produce movement. This contraction is a fundamental process for locomotion, maintaining posture, and enabling a wide range of physiological functions within the body.
There are three main types of vöðvaefni: hjartavöðvi (cardiac muscle), sléttvöðvi (smooth muscle), and beinagrindarvöðvi (skeletal
The structure of vöðvaefni involves specialized cells called muscle fibers, which contain contractile proteins like actin