Weakness

Question 1

When a patient complains of weakness, what 2 specific regional weaknesses do we have to differentiate?

Answer 1

Specific weakness vs General weakness

Question 2

Information that has been integrated at a high level is sent to the _________ via the corticospinal tracts.

Answer 2

Anterior horn cells

Question 3

Increased excitability due to cortical divorce from the alpha motoneuron results in increased muscle tone with passive movement. [T/F]

Answer 3

True

Also includes increase in DTRs

Question 4

Where are fibers that innervate the lower part of the body located?

Answer 4

Superficial and lateral

Question 5

What does the corticobulbar paths include?

Answer 5

Cortex, brainstem and spinal cord

Question 6

For neurologic weakness, where must a lesion be? (7)

Answer 6

• Along the corticospinal path (cortex, brainstem, spinal cord)
• Along the corticobulbar path
• Anterior horn cell
• Myoneural junction
• Muscle