The brain is surrounded by a large number of capillaries. If you took all the capillaries and set them end to end they would stretch 400 miles.
(The Great Courses – Introduction to Nanotechnology: The New Science of the Small)
The brain is surrounded by a large number of capillaries. If you took all the capillaries and set them end to end they would stretch 400 miles.
(The Great Courses – Introduction to Nanotechnology: The New Science of the Small)