anatomy nervous system/tissue
8
# of pairs of cervical nerves
5
# of pairs of lumbar nerves
8
# of pairs of sacral nerves
31
# of pairs of spinal nerves
12
# of pairs of thoracic nerves
sciatic
a major nerve of the lumbosacral plexus
transient ischemic attack
a ministroke; fleeting with symptoms of CVA
phrenic
a nerve emerging from the cervical plexus involve in breathing
flexor
a withdrawal reflex
Ach
abbreviation for acetylcholine
cerebral edema
after head injury, retention of water in brain
four types of glial cells are found in the CNS
astrocytes, microglia, oligodendrocytes, ependymal cells
multiple sclerosis
autoimmune disorder with extense demyelination
ganglion
collection of nerve cel bodies
efferent
damage to this fiber type results in loss of motor function
afferent
damage to this fiber type would lead to a loss of sensory function
intercranial hemmorage
disease that causes brain stem to be wedged into foramen magnum by pressure of blood
both efferent and afferent
fiber type in spinal nerve
both efferent and afferent
fiber type in the anterior ramus
afferent
fiber type in the dorsal root
efferent
fiber type in the ventral root
interneuron
found between a sensory and a motor neuron
autonomic and somatic
major components of the peripheral nervous system
association
neuron type found in dorsal horn
efferent
neuron type found in the ventral horn
afferent
neuron type in a dorsal root ganglion
sympathetic
nreves antagonistic to the parasympathetic nervous system
alzheimers
progressive degeneration of the brain with the abnormal protein deposits
CVA
results when a brain region is deprived of blood or exposed to prolonged ischemia
concussion
slight and transient brain injury
foramen magnum
spinal cord starts here
motor
the descending tracts in the spinal cord are ___ nerves
corticospinal
the pathway that provides voluntary control over the skeletal muscles
cellbody
the portion of the neuron that contains organelles
cauda equina
the tail-like collection of spinal nerves at the inferior end of the spinal cord
coma
total nonresponsiveness to stimulation
contusion
traumatic injury that destroys brain tissue
control muscles and coordinate actions
two primary functions of the cerebellum
glial
type of cells for support and protection (specialized)
neurons
type of cells for transfer and processing
GABA
type of neurotransmitter
lumbar tap
when the meninges extend more inferiorly to form a sac from which CS fluid can be withdrawn without damage to the spinal cord
