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29 Cards in this Set

  • Front
  • Back
lumbar tap (spinal tap)
removal of cerebrospinal fluid from below the L3 this is done to analyze the fuid without endangering the spinal cord
saddle block
caudal anesthesia for childbirth, normally adminstered between L3 and L5
gray matter
in a cross section view of the spinal cord this looks like a butterfly or "H"
white matter
composed of myelinate fibers
paraplegia
paralysis of legs
quadriplegia
paralysis of all limbs
mixed nerves
contain both afferent and efferent
dorsal rami
smaller than their anterior counterparts, contain both motor an sensory fibers
ventral rami
larger than its counter part, contains both motor and sensory fibers, form complex network of nerves called plexuses
intercostal nerves
the ventral rami of the spinal nerves that pass through T 2 -T12
nerve plexuses
area where nerves branch and region. Four major
cervical plexus- chief peripheral nerves
lesser occipital, greater auricular, transverse cutaneous, supraclavicular, ansa cervicalis and phrenic
phrenic nerve
cervical plexus
C3-C5
diaphragm
brachial plexus
large and complex arising from c5-c8, t1
axillary nerve
brachial plexus
posterior cord c5 c6
deltoid teres minor, skin of shoulder
radial nerve
brachila plexus
posterior cord c5-c8, t1
forearm and hand, posterolateral surface of entire limb
ulnar nerve
bracial plexus
medial cord c8 t1
forearm, skin of medial third of hand
lumbosacral plexus
serve the pelvic region of trunk and lower limbs
lumbar plexus
arise from ventral rami l1-l4, nerves serve the lower abdominopelvic region and the anterior thigh
femoral nerve
lumbar plexus
L2-L4
skin of anterior and medial thigh, anterior muscles of thigh
sacral plexus
supply the buttock and posterior surface of thigh and virtually all sensory and motor fibers of the leg and foot
sciatic nerve
sacral plexus
L4 L5 S1-S3
composed of tibia and common fibular nerves
tibial nerves
sacral plexus
L4-S3
skin of posterior surface and sole of foot, muscles back of leg
common fibular nerve
sacral plexus
L4-S2
skin of anterior surface of leg, extensor musclesfibularis muscles
sciatica
characterized by stabbing pain over the course of the sciatic nerve
foot drop
when sciatic nerve is severed, leg cannot flex and the foot drops into plantar flexion
autonomic nervous system
a subdivision of the PNS that regulates body activities not under conscious control
somatic nervous system
this sytem innervates skeletal muscles, the cell bodies resid in the CNS and the axons extend all the way to the muscles they serve, divided into sympathetic and parasympathetic
orthostatic hypotension
type of low blood pressure resulting from body position (laying- standing)