Back Flashcards
what spinal segments have lateral horn
t1-l2
what are the spinal segments of the cervical enlargement
c5-t1
what are the spinal segments of the lumbosacral enlargment
l1-s3
what is the white matter of the spinal cord
axons
what is the grey matter of the spinal cord
cell bodies
how many pairs of spinal nerves are there
31
how many cervical, thoracic, lumbar, sacral, and coccygeal pairs of spinal nerves are there?
8 cervical 12 thoracic 5 lumbar 5 sacral 1 coccygeal
what vertebral level does the conus medullaris end in adult and children?
adult: l1/l2
newborn: l3
cauda equina contains dorsal and ventral roots of what spinal nerves?
l2-co1
all sensory neurons have what morphology?
pseudounipolar
motor neurons that have GSE fibers have what morphology?
multipolar
somatic nerve pelxuses form what what rami?
ventral rami only
cervical plexus forms from what spinal nerves?
c1-c4
intercostal nerves form from what spinal nerves?
t1-t12
lumbar plexus forms from what spinal nerves?
l1-l4
sacral plexus forms from what spinal nerves?
l4-s4
what are the spinal roots of the lumbosacral plexus?
l4-s4
coccygeal plexus forms from what spinal nerves?
s5-Co1
lung sounds in the triangle of auscultation is more pronounced in what position?
when shoulders are pulled forward
in triangle of ausculation, lung sounds are heard in which ics?
6th
which triangle of the back is the site for hernias?
lumbar triangle
what nerve provides motor innervation to suboccipital muscles?
suboccipital c1
what nerve provides sensory innervation to suboccipital muscles?
greater occipital nerve
lordosis is prominence of which curvature
lumbar
