Flaccid dysarthria may result from which of the following?

Flaccid dysarthria can be attributed to a variety of underlying causes, which include both infections and degenerative diseases. This type of dysarthria is characterized by weakness or paralysis of the speech muscles, which results in a soft or weak voice quality.

Infections, such as viral or bacterial infections, can lead to conditions that affect the motor neurons or muscles responsible for speech production. For example, conditions like Guillain-Barré syndrome, which can follow an infection, are known to cause flaccid dysarthria due to nerve damage.

Degenerative diseases, such as Amyotrophic Lateral Sclerosis (ALS) or muscular dystrophy, can also lead to the weakening of the muscles involved in speech. These diseases progressively damage the motor neurons that innervate the muscles, resulting in the characteristic symptoms of flaccid dysarthria.

Thus, both infections and degenerative diseases can indeed result in flaccid dysarthria, making the selection of the choice that includes both causes the most accurate response.