In Flaccid Dysarthria, the reflexes are typically:

• A. Normal
• B. Diminished
• C. Increased
• D. Absent

Answer: (B)

In Flaccid Dysarthria, the characteristic feature is weakness and reduced muscle tone resulting from lower motor neuron damage. This condition arises from issues affecting the peripheral nervous system, specifically the cranial and spinal nerves that innervate the muscles involved in speech.

When lower motor neurons are damaged, the result is often diminished reflexes. This happens because the neural pathways that facilitate reflex actions are compromised. Consequently, the typical response of muscles to stimuli is weakened, leading to a decreased capacity to elicit reflexive actions. The diminished reflexes are also accompanied by muscle atrophy, fasciculations, and significant weakness, reflecting the loss of neural control over those muscles.

This understanding correlates with the mechanics of how the nervous system regulates motor function, wherein the presence of healthy lower motor neurons is essential for maintaining normal reflex activity. In contrast to other forms of dysarthria where muscle tone and reflexes can be altered differently, Flaccid Dysarthria specifically shows a pattern of diminished reflexes due to lower motor neuron involvement.