Choroid Plexi: An interjoining or
network; a vascular proliferation or fringe of the tela choridea (the pia
mater brain membrane which covers part of the roof of the fourth ventricle)
in one of the cerebral ventricles.
Choroid Plexus: Group of capillaries that lines the
ventricles in the brain, these capillaries secrete cerebral spinal fluid.
Chronic: A disease having a long course; not acute.
CINE MRI: A test performed by MRI scanner that looks at
the flow of CSF around the cerebellum and into the spinal canal.
Cisterna Magnum: A cavity, dilation of the subarachnoid
space located between the cerebellum and the medulla. It is supplied with
CSF from the fourth ventricle through the medial foramen of Magendie.
Clonus: A consclusive spasm caused by a series of
alternating muscle contractions and partial relaxations.
CM: Chiari malformation.
Coele or Cele: Pertaining to the related to a cavity or
space. Generally refered to swelling tumor protrusion.
Congenital: Present at birth, A condition that is
congenital is one that is present at birth.
Contraindicated: A practice of medication or procedure
that is not advisable. i.e., tetracycline is contraindicated during
pregnancy.
Contrast: The visible difference between two areas in
an image; it enables the radiologist to observe the details.
Conus medullaris: The lowest end or tail of the spinal
cord.
Cranial nerves: Group of 12 nerves in the brain
responsible for controlling motor and sensory functions, including
swallowing, heart rate, eye movement and smell.
Craniectomy: A procedure that involves excision or
removal of part of the skull. CSF: Cerebral spinal fluid.
CT scan: A specialized X ray that captures images
around the body that are reconstructed by a computer to give a more detailed
view compared to standard X-ray.
Cyanosis: A bluish color of the skin and the mucous
membranes caused due to lack of oxygen in the blood.
Dandy Walker: A syndrome affecting the infants by
hydrocephalus. It is associated with an abnormal closure of the passage at
the foramina of Luschka and Magendie.
Decompression: Relieve pressure or to take pressure
off.
Diencephalon: Portion of the brain in the third
ventricle that comprises of thalamus and hypothalamus.
Diplopia: Double vision; this condition is caused when
the two eyes are unable to fix (look at) the same point.
Dissociation of Sensation: The simultaneous preservation
of light touch sensation and loss of pain and temperature sensation.
Distal: Movement away from the midline of the body.
Dorsal: Pertaining to the back of the body, same as
posterior.
Dura Mater: Tough outer layer of the membranes that
surrounds the brain and spinal cord.
Dysarthria: Poorly articulated speech caused by damage
to a motor nerve.
Dysequilibrium: Inability to maintain balance.
Dyesthesia: Loss of feeling or sensation. Relieves from
sensation of pins and needles, pain experience due to any sensation.
Dysmetria: An inability to fix the range and speed of
movement in muscular activity. Rapid and brisk movements are made with more
force than required. A symptom of cerebellar disorders.
Dysphagia: Experiencing difficulty in swallowing.
Dysplastic Tonsil: Abnormal development of a cerebellar
tonsil.
Dyspnea: Difficulty in breathing that results in air
hunger.
Ectopia: Malposition or displacement of any organ or
structure, congenital or acquired.
Edema: An excessive accumulation of fluid between the
tissue spaces.
Elongated: To make or to grow longer.
Enuresis: Involuntary passage of urine, usually during
sleep.
Epidural Space: The space between the dura and the bone
of the vertebral canal.
Esophagus: A muscular tube that extends from the back
of the throat from the pharynx to the stomach.
Excision: To remove or cut away a portion.
Extremity: A limb; an arm or leg.
Fascialata graft A graft covering or repair of tissue
with fascia. The fibrous membrane that covers and separates muscles, organs.
Fasciculations: Involuntary contractions, or twitching
of groups of muscle fibers, a courser form of muscle contractions than
fibrillation.
Filum Terminale: A long slender filament located at the
base of the spinal cord.
Foramen: An opening usually in a bone or organ of
membrane.
Foramen Magnum: The large hole at the base of the skull
which allows passage of the spinal cord.
Foramina of Luschka: An opening or passage ? lateral of
the fourth ventricle
Fossa: A depression on the surface at the end of a
bone.
Fourth ventricle: The ventricle of the brain that lies
between the cerebellum and the brainstem.
 |
