MedTerm - module 15 Flashcards
encephal/o
brain
myel/o
spinal cord
glial cells
glia
neuroglia
gli/o
gluey substance
radicul/o
nerve root
radic/o
nerve root
rhiz/o
nerve root
neuron
nerve cell
dendrite
projections from the cell body
myelin sheath
covers the axon of many nerves
axon
thread like extension
gangli/o
ganglion
ganglion/o
ganglion
afferent
sensory
efferent
motor
synapse
point of functiuonal contact between neurons or between a neuron and an effector organ
impulse conduction
receptors of our sensory neurons detect a change in the environment
impulse
electrical disturbance
brain
one of the largest organs in the body
cranium
brain is encased within it
mening/o
meninges
meningi/o
meninges
dur/o
dura mater
arachnoid
loosely attached web-like covering
pia mater
delicate, inner layer,
rich supply of blood vessels that nourish the nervous tissue
cerebr/o
cerebrum
cerebell/o
cerebrellum
brainstem divisions
mid brain
pons
medulla
cerebrum
largest most upper section of the brain
sulcus
shallow depression on the surface of an organ
frontal lobe
largest lobe
temporal lobe
lateral region
parietal lobe
lies behind frontal and above temporal
occipital lobe
small pyramid-shaped area at the posterior of the cerebrum
cerebellum
under the cerebrum
second larges
medull/o
medulla oblongata
pont/o
pons
thalm/o
thalamus
ventricle
fluid filled cavities of the brain
CSF
within the ventricles and surrounds the brain and spinal cord
meningocele
saclike hernial protrusion of either the cerebral or spinal meninges through a bony defect in the skull of spinal cord
-cele
hernia
meningomyelocele
part of the spinal cord, meninges, and CSF protrude through a congenital defect in the verebral arch
hydrocephalus
congenital or acquired condition characterized by dilatioin of the cerebral ventricles accompanied by an accumulation of CSF in the skull
duritis
inflammation of the dura mater
cerebellitus
inflammation of the cerebellum
encephalitis
inflammation of the brain
neuritis
inflammation of a nerve