Unit 2- Spinal Cord Part II Flashcards
Which ascending tracts decussate into the spinal cord?
Anterolateral spinothalmic tract
Anterior spinocerebellar tract
Which neurological condition can affect the cauda equina?
M.S.
Pseudounipolar neuron is for ______ detection
sensory
Sensory afferent system
Central processes of the _____ order neuron: CNS
Some decussate: Where?
Some not
_______, _______, and ______ funiculus (white matter)
1st
anterior white commisure
dorsal, anterior, lateral
CNS crossover: ______ mater
dura
Label
The DCML has sensory decussation in the ___________
medulla
The _______ system has no decussation in the spinal cord, but crosses over at the medulla
DCML
What’s unique about T6?
autonomic dysreflexia can happen here
The DCML has _______ _______ axons
For ?
giant myelinated
proprioception, fine touch, vibration
The anterolateral system: aka _________ tract
spinothalamic
The STT is _____ or has ____-_________ axons
poorly
non-myelinated
The STT tract contains _____ fibers and synapses with the _____ order neurons (dorsal horn)
C
2nd
The lateral spinothalamic tract is for _____ pain, _______, and ______ touch, ______
decussates where?
__________ maintained
sharp
temperature
crude
itch
The anterior spinothalamic tract is for _______ pain, has ________ projection, and no _________ maintained
diffuse
bilateral
somatotopy
Which tract in the anterolateral system is a major contribution to chronic pain?
anterior spinothalamic tract
The spinocerebellar tract is loacted in the _________ funiculus
lateral
The POSTERIOR spinocerebellar tract
Synapes with __________
_____ order neurons in the ______ nucleus
________ acscend to the _____ (learn new skills)
*** ___________ proprioception
mechanoreceptors
2nd, Clarke’s
Ipsilateral, cerebellum
Unconscious
The ANTERIOR spinocerebellar tract
_____ order neurons in the ________
_______ ascend to the _________
Decussates; ?
mainly for _______ information
2nd, Clarke’s
Contralateral, cerebellum
anterior white commisure
motor
Which ascending tracts maintain somatotopy?
DCML
LSTT
DCML
medial –> lateral: _______ to ______ limb/_____
posterior–> anterior: _________ (more outside), _________, and ______ touch
lower, upper, neck
proprioception, vibration, fine
LSTT
________, ________, ______ touch, ______
Lateral –> medial: ______ to _________ limb/ ______
Anterior –> posterior: diff. _________
pain, temperature, crude, itch\lower, upper, neck
modalities
What are the 4 uncrossed acending tracts?
FG
FC
LT
DSCT/RSCT (neck part)
*posterior spinocerebellar tract
What are the 3 crossed acending tracts?
STT; lateral spinothalamic tract
VSCT; anterior spinocerebellar tract
SRT: anterior STT, spinoreticular tract
Is the SG in which lamina of gray matter?
Lamina II- mainly diffuses pain pathway
A delta fibers for _____ pain
C fibers: _____ pain
sharp
diffuse
