SPINAL CORD Flashcards
Gray substance surrounding the central canal.
A. Lamina 1-6
B. Lamina 7
C. Lamina 8 and 9
D. Lamina 10
D. Lamina 10
Located in the posterior horn.
A. Lamina 1-6
B. Lamina 7
C. Lamina 8 and 9
D. Lamina 10
A. Lamina 1-6
Located at the anterior horn.
A. Lamina 1-6
B. Lamina 7
C. Lamina 8 and 9
D. Lamina 10
C. Lamina 8 and 9
Located the lateral horn.
A. Lamina 1-6
B. Lamina 7
C. Lamina 8 and 9
D. Lamina 10
B. Lamina 7
The anterior funiculus is consists of the following tracts EXCEPT:
A. Rubrospinal
B. Reticulospinal
C. Vestibulospinal
D. Tectospinal
A. Rubrospinal
The lateral corticospinal tract decussates at the level of…
A. Upper midbrain
B. Lower midbrain
C. Lower medulla
D. Upper medulla
C. Lower medulla
The following are signs of an upper motor neuron lesion EXCEPT:
A. Clonus
B. Positive pathologic reflexes
C. Increase muscle tone
D. Flaccidity
D. Flaccidity
Bilateral cervical spinal cord damage C4-C6 may result in paralysis of
All four extremities (quadriplegia)
Unilateral spinal cord lesions in thoracic levels may result in paralysis of the ipsilateral lower extremity or….
Monoplegia
Paraplegia is a result from…
Bilateral thoracic spinal cord damage
Progressive cavitation around the central canal; loss of pain and temperature sensations in hands and forearm.
Syringomyelia
Attacks the anterior horn cells leading to LMNL.
Poliomyelitis
Caused by neurosyphilis; dorsal root involvement with secondary degeneration of dorsal columns (loss of vibration and position sense).
Tabes Dorsalis
Pure motor disease involving the degeneration of anterior horn cells (LMNL) and corticospinal tract (UMNL); no sensory loss.
Amyotrophic lateral sclerosis
Caused by vitamin B12 deficiency; degeneration of posterior and lateral columns (loss of position sense and vibration in legs associated with LMNL).
Subacute combined degeneration
