A cell that apparently is part of the blood-brain barrier is a(n):
A) neurolemmocyte.
B) Schwann cell.
C) oligodendrocyte.
D) astrocyte.

Question

Quizplus · Accepted Answer

Astrocytes are a type of glial cell that is found in the central nervous system and are known to form part of the blood-brain barrier. They help to create a physical barrier between the bloodstream and the brain tissue by wrapping around blood vessels in the brain and forming tight junctions with other astrocytes. This helps to regulate the exchange of substances between the bloodstream and the brain tissue, ensuring that only essential nutrients and substances are able to cross the barrier. Neurolemmocytes, Schwann cells, and oligodendrocytes are not known to contribute to the blood-brain barrier.

A Cell That Apparently Is Part of the Blood-Brain Barrier