The complex biological process, also known as myelination, involving the formation of a lipid-rich sheath around neuronal axons by specialized glial cells—oligodendrocytes in the central nervous system and Schwann cells in the peripheral nervous system. This sheath acts as an electrical insulator, significantly increasing the speed and efficiency of nerve impulse conduction, and is crucial for optimal neurological function and hormonal communication.
Origin
The term is foundational to neurobiology, with the process of myelination first observed and described morphologically in the 19th century. Its clinical significance expanded with the understanding of demyelinating diseases and the role of various growth factors and hormones in regulating glial cell differentiation and lipid synthesis.
Mechanism
Hormonal factors, particularly thyroid hormones and certain steroid hormones, play a regulatory role in oligodendrocyte differentiation and the subsequent synthesis of myelin components. The process requires substantial lipid and protein synthesis, driven by signals from the axon that stimulate the glial cell. Proper myelin generation ensures rapid, saltatory conduction of action potentials, maintaining the integrity of the neural pathways that control the hypothalamic-pituitary axes and systemic hormonal release.
We use cookies to personalize content and marketing, and to analyze our traffic. This helps us maintain the quality of our free resources. manage your preferences below.
Detailed Cookie Preferences
This helps support our free resources through personalized marketing efforts and promotions.
Analytics cookies help us understand how visitors interact with our website, improving user experience and website performance.
Personalization cookies enable us to customize the content and features of our site based on your interactions, offering a more tailored experience.