Specializing in Canine and Feline Neurology and Neurosurgery for Over 30 Years

cerebellomedullary cistern

The opening in the subarachnoid space of the brain created by a separation of the arachnoid and pia mater. This large space is filled with cerebrospinal fluid and located between the cerebellum and medulla.  This is where the needle is inserted and cerebrospinal fluid withdrawn during a cervical spinal tap.

Related Words

arachnoid ; cerebellum ; cerebrospinal fluid (CSF) ; cervical ; medulla oblongata ; pia ; spinal tap ; subarachnoid space