Back and Spinal Cord Flashcards
normal thoracic curvature
kyphosis
normal cervical curvature
lordosis
normal lumbar curvature
lordosis
normal sacral curvature
kyphosis
normal curvature of spine prior to walking
kyphosis
three pillars of the vertebral column
vertebral body, right and left articular processes
ligament between vertebral body and spinal cord
posterior longitudinal ligament
function of anterior horn of spinal grey matter
motor
function of posterior horn of spinal grey matter
sensory
lateral horn of spinal grey matter function
autonomic
alpha-motor neuron has ____ cell bodies, located in _____
one
anterior horn
ANS neuron has _____ cell bodies, located in _____
2, presynaptic in IML, postsynaptic in either ganglia or target organ
sympathetic presynaptic cell body located in
IML of T1-L2
sympathetic postsynaptic cell body located in
ganglion in either sympathetic chain (paravertebral) or peripheral (prevertebral) ganglion
parasympathetic presynaptic cell body located in
either brainstem or sacral IML
postsynaptic cell body of parasympathetic nerve located in
either on target organ or a ganglion in the head
sympathetic cardiopulmonary splanchnic nerves synapse in
prevertebral ganglia
sympathetic splanchnic nerves for Liver, Gallbladder, Stomach, Pancreas, Spleen synapse in
Celiac ganglion
sympathetic splanchnic nerves for Intestines, Kidneys, Adrenal Gland, Rectum, Anal Sphincter, Bladder, and Gonads synapse in
Aorticorenal, Superior and Inferior Mesenteric ganglia
Presynaptic axon enters ganglion through
White ramus communicans
postsynaptic axon leaves ganglion through
gray ramus communicans
splanchnic nerves that synapse elsewhere still. . .
travel through white ramus communicans and ganglion, they just don’t synapse there
sacral parasympathetic outflow innervates
Bladder, genitals, descending colon and distal
cranial parasympathetic outflow innervates
eyes, salivary and lacrimal glands, viscera (except what sacral innervates)
