Unit 2- Spinal Cord Part II

Question 1

Which ascending tracts decussate into the spinal cord?

Answer 1

Anterolateral spinothalmic tract

Anterior spinocerebellar tract

Question 2

Which neurological condition can affect the cauda equina?

Answer 2

M.S.

Question 3

Pseudounipolar neuron is for ______ detection

Answer 3

sensory

Question 4

Sensory afferent system

Central processes of the _____ order neuron: CNS

Some decussate: Where?

Some not

_______, _______, and ______ funiculus (white matter)

Answer 4

1st
anterior white commisure
dorsal, anterior, lateral

Question 5

CNS crossover: ______ mater

Answer 5

dura

Question 6

Label

Answer 6

Question 7

The DCML has sensory decussation in the ___________

Answer 7

medulla

Question 8

The _______ system has no decussation in the spinal cord, but crosses over at the medulla

Answer 8

DCML

Question 9

What’s unique about T6?

Answer 9

autonomic dysreflexia can happen here

Question 10

The DCML has _______ _______ axons

For ?

Answer 10

giant myelinated
proprioception, fine touch, vibration

Question 11

The anterolateral system: aka _________ tract

Answer 11

spinothalamic

Question 12

The STT is _____ or has ____-_________ axons

Answer 12

poorly
non-myelinated

Question 13

The STT tract contains _____ fibers and synapses with the _____ order neurons (dorsal horn)

Answer 13

C
2nd

Question 14

The lateral spinothalamic tract is for _____ pain, _______, and ______ touch, ______

decussates where?

__________ maintained

Answer 14

sharp
temperature
crude
itch

Question 15

The anterior spinothalamic tract is for _______ pain, has ________ projection, and no _________ maintained

Answer 15

diffuse
bilateral
somatotopy

Question 16

Which tract in the anterolateral system is a major contribution to chronic pain?

Answer 16

anterior spinothalamic tract

Question 17

The spinocerebellar tract is loacted in the _________ funiculus

Answer 17

lateral

Question 18

The POSTERIOR spinocerebellar tract

Synapes with __________

_____ order neurons in the ______ nucleus

________ acscend to the _____ (learn new skills)
*** ___________ proprioception

Answer 18

mechanoreceptors
2nd, Clarke’s
Ipsilateral, cerebellum
Unconscious

Question 19

The ANTERIOR spinocerebellar tract

_____ order neurons in the ________

_______ ascend to the _________

Decussates; ?

mainly for _______ information

Answer 19

2nd, Clarke’s
Contralateral, cerebellum
anterior white commisure
motor

Question 20

Which ascending tracts maintain somatotopy?

Answer 20

DCML
LSTT

Question 21

DCML
medial –> lateral: _______ to ______ limb/_____

posterior–> anterior: _________ (more outside), _________, and ______ touch

Answer 21

lower, upper, neck
proprioception, vibration, fine

Question 22

LSTT
________, ________, ______ touch, ______

Lateral –> medial: ______ to _________ limb/ ______

Anterior –> posterior: diff. _________

Answer 22

pain, temperature, crude, itch\lower, upper, neck
modalities

Question 23

What are the 4 uncrossed acending tracts?

Answer 23

FG
FC
LT
DSCT/RSCT (neck part)
*posterior spinocerebellar tract

Question 24

What are the 3 crossed acending tracts?

Answer 24

STT; lateral spinothalamic tract
VSCT; anterior spinocerebellar tract
SRT: anterior STT, spinoreticular tract

Question 25

Is the SG in which lamina of gray matter?

Answer 25

Lamina II- mainly diffuses pain pathway

Question 26

A delta fibers for _____ pain
C fibers: _____ pain

Answer 26

sharp
diffuse