Paralysis of one side of the body with the arm flaccid and the leg externally rotated describes which condition?

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Study for the Parkinson’s Disease Exam. Engage with detailed flashcards and multiple-choice questions, each offering hints and explanations. Prepare effectively for your exam!

Multiple Choice

Paralysis of one side of the body with the arm flaccid and the leg externally rotated describes which condition?

Explanation:
Pattern of weakness is unilateral. Paralysis confined to one side of the body is called hemiplegia, which fits the description of an arm that is flaccid and a leg that lies externally rotated on the same side. In the acute phase after a central nervous system injury, the arm can be flaccid due to loss of motor tone before spasticity develops, and a leg may assume an externally rotated posture from imbalance among hip rotators. The other patterns involve both legs (paraplegia), all four limbs (quadriplegia), or a single limb (monoplegia), which don’t match this unilateral presentation.

Pattern of weakness is unilateral. Paralysis confined to one side of the body is called hemiplegia, which fits the description of an arm that is flaccid and a leg that lies externally rotated on the same side. In the acute phase after a central nervous system injury, the arm can be flaccid due to loss of motor tone before spasticity develops, and a leg may assume an externally rotated posture from imbalance among hip rotators. The other patterns involve both legs (paraplegia), all four limbs (quadriplegia), or a single limb (monoplegia), which don’t match this unilateral presentation.

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