Blood-brain barrier
The blood-brain barrier is a highly selective Epithelial barrier that separates the Nerves of the central nervous system from the bloodstream, protecting the brain from harmful substances and maintaining a stable environment for proper Action potential functioning. This complex barrier is composed of specialized Epithelial cells that line the brain's blood vessels, which are tightly packed together to prevent the passage of most molecules. The blood-brain barrier plays a crucial role in maintaining the health of the brain and is essential for preventing the entry of Toxins and other harmful substances into the brain. Neuroscientists, such as Rita Levi-Montalcini, have extensively studied the blood-brain barrier to understand its functions and mechanisms. The blood-brain barrier is also of great interest in the development of Medications and Treatments for various brain disorders, as it can limit the delivery of therapeutic agents to the brain.