Unit 3: Introduction of spinal nerves Flashcards
Name the structure which carries the axons of neurons in the dorsal root ganglion
dorsal root
name the vertebral segment, which carry the axons of neurons in the lateral grey columns
T1-L2/L3
Name the type of the neurons in the dorsal root ganglion
unipolar
Where do the ventral and dorsal roots perforate the dura mater?
lateral side of dorsal root ganglia
Where do the dorsal root ganglia of the 1st and 2nd cervical nerves lie on?
vertebral arches of the atlas and axis
Where are the spinal ganglia of the sacral nerves located in?
vertebral canal
Where do the gray ramus communicans of the corresponding sympathetic ganglion join the spinal nerve part?
At or immediately distal to its origin (origin of each ventral ramus)
name the vertebral segment, where the ventral rami of the spinal cord contribute white rami communicans to the each corresponding sympathetic ganglion
T1-L2/L3
visceral efferent presynaptic fibers from horn
The ventral rami of the thoracic and the 1st and 2nd lumbar nerve contribute ____ to the corresponding sympathetic gangla, and receive____ from the ganglia
white ramus communicans; grey ramus communicas
Name the part of the corresponding spinal nerve, where the recurrent meningeal nerve emerges
mixed spinal nerve; immediately before the split
name the part of the corresponding spinal nerve, where the grey ramus communicans mostly joins
ventral ramus; at or immediately distal to ventral ramus
name the segments of the spinal cord, which contain the preganglionic efferent fibers of the sympathetic nerves
T1-L2/L3
Name the vertebral segments, where the pelvic splanchnic nerves emerge
S2, S3, S4
The borders of an intervertebral foramen are anterior Posterior superiorly inferiorly
anteriorly: IVD and vertebral bodies above and below
posteriorly: synovial zygapophyseal joints
superiorly: inferior vertebral notch of the vertebral body above
inferiorly: superior vertebral notch of the vertebral body below
name the structure, which are located within the intervertebral foramina
spinal artery, spinal nerve, plexus of spinal veins and recurrent meningeal nerves
Name the type of neurons in the anterior grey column of the spinal cord
alpha
beta
gamma neurons
The recurrent meningeal nerves of the corresponding spinal nerve receive one or more communications from neighboring white ramus communicans of the toracic and upper lumbar sympathetic ganglion T/F
false- grey matter
Name all possible targets, which are innervated by the recurrent meningeal nerve of the spinal nerve
dura mater, wall of BV, the periosteum, ligaments, intervertebral disc, and cerebral dura of posterior cranial fossa
hong: 18) deep dorsal coccygeal, PLL, Membrana tectoria, ventral coccygeal lig,, trasverse atlantal lig, vertical lig, alar lig, apical ligament, dorsum of sella (part of post. cranial fossa)
PLC/PLL
posterior: ligamentum flavum, and all arteries.
The upper three cervical meningeal nerves are distributed to the cerebral dura mater of the ___ cranial fossa
posterior
name two funcitonal nerve fibers, which pass through the ventral root at the T5 spinal cord
somatic efferent and visceral efferent
The recurrent meningeal branches of the spinal nerves are present at all vertebral levels T/F
True
Name two ligaments, which the recurrent meningeal nerve of the spinal nerve supplies at the L1 spinal cord level
PLL, ligamentum flavum and capsular ligament
Name the nerves, which are distributed to the cerebral dura mater of the posterior cranial fossa
Upper 3 cervical meningeal branches, meningeal branches of hypoglossal nerve and vagus
name the vertebral segments, which visceral efferent fibers in the ventral roots
T1-L2/L3
