ventricles
marrow
a cavity,opening,or space within somethingwhen something is hollow t has nothing inside it (when a tree is hollow it is empty)
lumen
The spinal-canal which surrounds the spinal cord .
The hollow space behind the nose is called the hot dog sinus
a cavity,opening,or space within somethingwhen something is hollow t has nothing inside it (when a tree is hollow it is empty)
The word 'hollow' can function as both an adjective and a noun.
a cavity,opening,or space within somethingwhen something is hollow t has nothing inside it (when a tree is hollow it is empty)
Yes. Cerebrospinal fluid is a clear liquid produced within spaces in the brain called ventricles. It is a filtrate of blood. It is also found inside the subarachnoid space of the meninges which surrounds both the brain and the spinal chord. In addition, a space inside the spinal chord called the central canal also contains cerebrospinal fluid. It acts as a cushion for the neuraxis, also bringing nutrients to the brain and spinal cord and removing waste from the system.
Because there is a hollow space inside the prism, the light would be refracted twice, turning it back to white light.
The intrathecal space is located between the arachnoid and the pia mater of the brain and spinal cord It is also known as the subarachnoid space.
Essentially, when a spinal tap is given, a needle is inserted into the spinal canal in the lumbar area, medicine (or an anesthetic) is inserted directly into the cerebrospinal fluid (CSF). Numbness is usually immediate. However, in an epidural, a hollow needle and a catheder are inserted into space between the spinal column and the outer membrane of the spinal cord (EPIDURAL space). Hence the name "epidural".