Subarachnoid channels
Cerebrospinal fluid forms, for the most part, within the ventricles of the brain. From there it flows out, at the base of the brain, and
Subarachnoid space
A commonly-used term for subarachnoid channels, reflecting the fact that, in dissection room preparations, the volume between the dura and the brain or spinal cord
Subjective
Something is subjective when it is felt by the individual. Another person cannot perceive whatever sensation it is. All symptoms are subjective. One person cannot
Superior sagittal sinus
A major venous channel, running down the centre of the top of the head. It drains a significant proportion of the total blood volume flowing
Symptom
A symptom is anything of which a patient complains with respect to his or her own body. It may also be obvious to an observer,
Syndrome
A syndrome is a clearly recognisable combination of symptoms and signs, which indicate that one or more disease process is active, or has been active
Syringobulbia
On rare occasions a syringomyelia cavity may enlarge in an upward direction, from the cervical spinal cord, into the brain stem. The word bulb refers
Syringomyelia
A cavity, within the spinal cord, which is filled with cerebrospinal fluid. Syringomyelia cavities come in various “shapes and sizes”, from short, spindle-shaped cavities through
Syrinx
A character from Greek mythology, widely depicted in classical art. Pursued by the god Pan (half man and half goat), who wished to have his
Glossary
The Charity appreciates that hospital specialists will almost inevitably use some medical jargon at times, even when they are trying to explain medical matters in lay terminology. The table below lists many of the medical terms that are likely to be used, from time-to-time, by doctors, when they are talking to patients, or in composing medical correspondence. It is hoped that our explanation of the meaning of these terms throws at least some light on matters.
