Complications of the DMP

Question 1

What is polyomyelitis?

Answer 1

Viral infection of the spinal cord affecting LMN resulting in LMN signs.

Question 2

What causes Combined systems disease?

Answer 2

Deficiency in B12 intake or metabolism

Question 3

What is Combined systems disease characterized by?

Answer 3

Characterized by the degeneration of the dorsal funiculus containing sensory fibers of FG and FC

and

Degeneration of the lateral funiculus containing motor fibers of corticospinal tract

Question 4

Damage to the dorsal funiculus will present in what manner?

Answer 4

Loss of discriminative touch, two point discrimination, vibratory sense, and proprioception and sensory ataxia.

Question 5

Damage to the lateral funinculus will present i what manner?

Answer 5

Damage to the corticospinal tract fibers leads to UMN signs (Babinskis sign, hyperreflexia, muscle weakness and spasticity)

Question 6

What is Brown Sequard syndrome caused by?

Answer 6

Hemisection of the spinal cord

Question 7

What sensation is lost in Brown Sequard syndrome?

Answer 7

Loss of discriminative sense AT OR BELOW level of lesion ipsilaterally
Loss of pain and temp sensation starting 2 SEGMENTS BELOW LEVEL OF LESION CONTRALATERALLY
Loss of reflexes ipsilaterally
UMN signs below lesion ipsilaterally
LMN at the level of the nerve ipsilaterally.

Question 8

Which funiculi are supplied blood by the anterior spinal artery?

Answer 8

The anterior and lateral funiculi and most of the gray matter

Question 9

Which funiculi are supplied blood by the posterior spinal arterys?

Answer 9

There are two.

Dorsal funiculi and posterior part of the dorsal horns.