what is blood brain barrier?
Answers
Answer:
The blood–brain barrier (BBB) is a highly selective semipermeable border that separates the circulating blood from the brain and extracellular fluid in the central nervous system (CNS). The blood–brain barrier is formed by endothelial cells of the capillary wall, astrocyte end-feet ensheathing the capillary, and pericytes embedded in the capillary basement membrane. This system allows the passage of some molecules by passive diffusion, as well as the selective transport of molecules such as glucose, water and amino acids that are crucial to neural function.
Answer:
Tʜᴇ Bʟᴏᴏᴅ-ʙʀᴀɪɴ Bᴀʀʀɪᴇʀ Sᴜʀʀᴏᴜɴᴅs Mᴏsᴛ Oғ Tʜᴇ Bʟᴏᴏᴅ Vᴇssᴇʟs Iɴ Tʜᴇ Bʀᴀɪɴ. Iᴛ Is A Sᴛʀᴜᴄᴛᴜʀᴇ Tʜᴀᴛ Is Fᴏʀᴍᴇᴅ Pʀɪᴍᴀʀɪʟʏ Dᴜᴇ Tᴏ Tʜᴇ Esᴛᴀʙʟɪsʜᴍᴇɴᴛ Oғ Tɪɢʜᴛ Jᴜɴᴄᴛɪᴏɴs Bᴇᴛᴡᴇᴇɴ Eɴᴅᴏᴛʜᴇʟɪᴀʟ Cᴇʟʟs.