Exam 3 Spinal Nerves and Dorsal Rami Flashcards
Name the vertebral segment, which carry the axons of neurons in the lateral grey columns
T1-L2 or L3
Name the structure which caries the axons of neurons in the dorsal root ganglion
Dorsal root
Name the type of the neurons in the dorsal root ganglion
Unipolar neurons
Where do the ventral and dorsal roots perforate the dura mater?
Just lateral to the spinal ganglion
What does the dorsal root ganglia of the 1st and 2nd cervical nerves lie on?
Vertebral arches of atlas and axis
Where are the spinal ganglia of the sacral nerves located in?
Vertebral canal
The spinal ganglia of the coccygeal N are usually located within the ___
Dura Mater
Where do the gray ramus communicans from the corresponding ganglion of the sympathetic trunk join?
At or immediate distal to the origin of the ventral ramus
Name the vertebral segment where the ventral rami of the spinal cord contribute white rami communicants to each corresponding sympathetic ganglion?
T1-L2 or L3
The ventral rami of the thoracic and the 1st and 2nd lumbar nerve contribute ___ to the corresponding sympathetic ganglia, and receive ___ from the ganglia.
A white ramus communicans
Grey ramus communicans
Name the part of the corresponding spinal nerve where the recurrent meningeal nerve emerges
At dorsal and ventral ramus
Name the part of the corresponding spinal nerve where the grey ramus communicans join.
Ventral ramus of all spinal nerves
Name the vertebral segments where the white rami communicans emerges
Ventral rami of T1-L2 or L3
Name the segments of the spinal cord which contain the preganglionic efferent fibers of the sympathetic nerve
T1-L2 or L3
Name the vertebral segments where the pelvic splanchnic nerves emerge
S2, 3, 4
What is the anterior border of the IVF
Intervertebral disc and adjacent part of vertebral body
What is the posterior border of IVF
Synovial zygopophyseal joints
What is the superior border of the IVF
Vertebral notches of the pedicles of the adjoining vertebrae
What is the inferior border of the IVF
Vertebral notches of the pedicles of the adjoining vertebrae
Name the structures which are located within the IVF
Spinal artery
Plexus of spinal veins
Recurrent meningeal n
Name the types of neurons in the anterior grey column of the spinal cord
Alpha, Beta, and gamma neurons
The recurrent meningeal nerves of the corresponding spinal nerve receive one or more communications from neighboring white ramus communicantes from a thoracic and upper lumbar sympathetic ganglion. True or False
False should be grey
Name all possible targets which are innervated by the recurrent meningeal nerve of the spinal nerve
Dura mater, wall of blood vessels, periosteum, ligaments, and IVD
The upper three cervical meningeal nerves are distributed to the cerebral dura mater of the ___ cranial fossa.
Posterior
Name two functional nerve fibers, which pass through the ventral root at the T5 spinal cord.
Somatic efferent
Visceral efferent
The recurrent meningeal branches of the spinal nerves are present at all vertebral levels. True or False
True
Name two ligaments which the recurrent meningeal nerve of the spinal nerve supplies at the L1 spinal cord level.
Posterior longitudinal ligament
Ligamentum flavum
Name the nerves which are distributed to the cerebral dura mater of the posterior cranial fossa
Upper 3 cervical meningeal nerves
Mainly C2 and C3
Name the vertebral segments which have visceral efferent fibers in the ventral roots
T1-L2 or L3 and S2, S3, S4
The C1 dorsal ramus is smaller than the ventral ramus. True or False
False except C1 and C2
Name the dorsal rami of the spinal nerves which does not divide into medial and lateral branches.
C1, S4, S5, and Co1 dorsal rami
