myogenní

Myogenic refers to processes originating within a muscle. It is often used in contrast to neurogenic, which originates within the nervous system. For example, muscle contractions can be myogenic, meaning they are initiated by the muscle cells themselves rather than by nerve impulses. This type of contraction is characteristic of smooth muscle and cardiac muscle. In smooth muscle, myogenic activity can be influenced by stretch, hormones, and other local factors, allowing for independent regulation of blood flow and organ function. Cardiac muscle, while influenced by the nervous system, has an intrinsic pacemaker system that generates its own rhythmic contractions, demonstrating myogenic properties.

In skeletal muscle, contractions are typically neurogenic, requiring signals from motor neurons to initiate contraction. However, certain aspects of muscle development and repair can be considered myogenic, involving the proliferation and differentiation of muscle precursor cells called myoblasts. These myoblasts fuse to form multinucleated muscle fibers. The term myogenic can also be applied to conditions or phenomena where muscle tissue itself is the primary site of pathology or dysfunction. Understanding the myogenic nature of different muscle types is crucial for comprehending their physiological roles and the mechanisms underlying various muscle-related diseases.