Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Neuro > Spinal Cord > Flashcards

Spinal Cord Flashcards

1
Q

Where do the dorsal rootlets enter to form dorsal root?

A

Posterolateral sulcus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where do the ventral rootlets leave to form ventral root?

A

Anterolateral sulcus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Dorsal horn contains

A

Endings of sensory neurons
Interneurons
Cell bodies of tract cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Lateral horn contains

A

Cell bodies of preganglionic sympathetic neurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Ventral horn contains

A

Cell bodies of lower motor neurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Where is the lateral horn ONLY located?

A

T1-L2 Spinal segments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What type of tract(s) travel through dorsal column?

A

Sensory

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What type of tract(s) travel through lateral column?

A

Sensory and Motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What type of tract(s) travel through anterior column?

A

Motor

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

As we travel up the SC, why is there more white matter in the cervical segments than in lumbar?

A

There’s more sensory neurons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Myotome

A

group of muscles innervated by a single nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Dermatome

A

dermis innervated by a single spinal nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What symptoms arise from a lesion in a spinal nerve?

A

Myotome/Dermatome symtpoms

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What happens when there is a lesion of sensory or motor fibers in the periphery?

A

Peripheral nerve distribution

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Signs + Symptoms of Peripheral Nerve Distribution

A

Paresis or paralysis
Sensory loss
Abnormal sensations
Muscle atrophy
Reduced/absent deep tendon reflex

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

UMN travel through where?

A

First Pathway (CNS)
Neurons with axons that descend from cerebral cortex or brainstem
They end on LMN

17
Q

LMN travel through where?

A

Secondary Pathway (CNS to PNS)
Cell body in brain stem (cranial nerves) or ventral horn of SC (alpha motor neuron)
Axons leave CNS and synapses in periphery (muscle)

18
Q

Clinical sings of UMN lesion

A

Paresis
Spasticity
Hypertonia
Hyperreflexia

19
Q

Diseases from UMN lesion

A

Stroke
SCI
Parkinson’s
TBI
MS

20
Q

Clinical signs of LMN lesion

A

Reduced/Absent reflexes
Muscle atrophy
Paresis or Paralysis
Fibrillations/Fasciculations

21
Q

Diseases from LMN lesion

A

Polio
Peripheral Nerve Injury
Guillain Barre Syndrome

22
Q

What disease has both UMN and LMN lesions?

A

ALS

23
Q

Gray Matter: Name region and function of laminae II

A

Substantia Gelatinosa
Processes pain information

24
Q

Gray Matter: Name region and function of laminae III, IV

A

Nucleus Proprius
Processes conscious proprioception and discriminative touch

25
Q

Gray Matter: Name region and function of laminae VII

A

Nucleus Dorsalis
Relays unconscious proprioceptive info from SC to cerebellum

26
Q

What are reflexes?

A

Involuntary, stereotyped response to a sensory input

27
Q

What are the inputs/outputs of reflexes?

A

Sensory input
Motor output

Neuro (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions