Spinal Anatomy CNS & related structures 23% part 5 (Ascending tracts) Flashcards
Which tract functions in vibratory, 2pt touch discrimination, and proprioception?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
e. Cuneatus
f. Gracilis
Are Gracilis and Cuneatus tracts conscious or unconscious?
Conscious
Which tract is found in all cord levels but only receives input from T5/T6 and BELOW?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
f. Gracilis
(walk in the grass = gracilis = medial and lower extremities)
Which tract is found in all cord levels but only recieves input from T5/T6 and ABOVE?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
e. Cuneatus
(cuddle with arms = cuneatus = lateral and upper body)
Where does the secondary neuron cross over at in the gracilis and cuneatus tracts?
Internal Arcuate fibers in the M.O
What are the 2nd order neurons of the gracilis and cuneatus tracts called?
internal arcuate fibers
The dorsal columns tracts refers to which of the following?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
e. cuneatus
&
f. Gracilis
What is the pathway in order from start to termination of the gracilis and cuneatus tracts?
a. Posterior lateral nucleus of thalamus –> postcentral gyrus
b. Posterior root Ganglion
c. nuclei gracilis/cuneatus
b. Posterior root ganglion
c. nuclei gracilis/cuneatus
a. Posterior lateral nucleus of thalamus –> postcentral gyrus
If there is a spinal lesion in the gracilis or cuneatus tracts will symptoms occur on the ipsilateral or contralateral side?
ipsilateral (same side)
Which ascending tract is “protopathic” defensive to pain, temperature and crude light touch?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
d. Anterior spinothalamic
What is the pathway in order from start to termination of the anterior spinothalamic tract?
a. Posterior root ganglion
b. Posterior lateral nuclus of thalamus –> postcentral gyrus
c. Substantia gelatinosa
a. posterior root ganglia
c. substantia gelatinosa
b. posterior lateral nucleus of thalamus –> postcentral gyrus
If there is damage to the anterior spinothalamic tract what would be affected greatly?
tactile senseation
If there is a lesion to the anterior spinothalamic tract would symptoms be present on the ipsilateral or contralateral side?
contralateral (opposite side)
What substance controls pain in the body? think what SUBSTANCE?
substance P
What is the pathway of pain?
tract of Lissauer
What tract functions in pain and temperature?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
c. Lateral sppinothalamic
Which tract crosses over abruptly as it ascends up the spine?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
c. Lateral spinothalamic
Which tract crosses over gradually as it ascends up the spine?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
d. Anterior spinothalamic
What is the pathway of the lateral Spinothalamic tract in order?
a. Posterior root ganglion
b. Substantia gelatinosa
c. Posterior lateral nucleus of thalamus –> postcentral gyrus
a, b, c
Which ascending tracts function in UNCONSCIOUS proprioception?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
b. posterior spinocerebellar
&
g. Anterior spinocerebellar
Which tracts function as CONSCIOUS proprioception?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
e. cuneatus
&
f. gracilis
(dorsal colums)
What tract is associated with Clarks column?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
b. Posteror spinocerebellar
&
g. Anterior spinocerebellar
what is another name for nucleus dorsalis?
clarks column
what is the pathway of the Posterior Spinocerebellar tract, in order?
a. Nuclus Dorsalis (clark’s column) ascend through the posterior inferior cerebellar peduncle to the cerebellum
b. Posterior root ganglion
b –> a
Over what nerve levels does clark’s column span?
C8 - L4
What is the pathway of the Anterior spinocerebellar tract, in order?
a. Posterior root ganglion?
b. Nuclus dorsalis (clark’s column) CROSS SEGMENTALLY & ascend through anterior superior cerebellar peduncle to the cerebellum
a –> b
What tract functions in spino visual reflexes?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
a. spinotectal
What is the pathway of the spinotectal tract in order?
a. Posterior root ganglion
b. Cross segmentally & ascend to superior colliculus (midbrain)
a, b
what tract deals with movements of the eyes and head toward a stimulus?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
a. spinotectal
What tract functions in levels of consciousness?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
h. spinoreticular
What is the pathway of the spinoreticular tract in order?
a. Posterior root ganglion
b. Ascend to nuclei of reticular formation (brainstem)
a, b
What tract is affected with the presence of syringomyelia (fluid-filled cysts) that leads to cape-like bilateral loss of pain and temperature?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
c. Laterl spinothalamic
Which tract is associated with tactile sensations?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
d. Anterior spinothalamic
Which tract(s) are affected by diabetes mellitus, PLS, MS and tabes dorsales (syphilis)?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
e. cuneatus
&
f. Gracilis
(dorsal columns)
Which tract ascends through the posterior inferior peduncle?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
b. Posterior spinocerebelar
Which tract ascends through the anterior superior peduncle?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
g. Anterior Spinocerebellar
What tract is aka spino-quadrigeminal systems of Mott?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
a. spinotectal
If this tract is damaged the patient will be in a coma?
a. spinotectal
b. Posterior Spinocerebellar
c. Lateral Spinothalamic
d. Anterior Spinothalamic
e. Cuneatus
f. Gracilis
g. Anterior spinocerebellar
h. spinorreticular
h. spinoreticular
