Questions: The word which means slow, writhing, involuntary movements is: Select one: palsy. ataxia. spastic. athetosis. tonic.

The answer is the fourth one: athetosis.

Explanation for each option:

• Palsy: This term generally refers to paralysis or a loss of motor function, often accompanied by tremors. It does not specifically describe slow, writhing movements.
• Ataxia: This refers to a lack of voluntary coordination of muscle movements, often resulting in a lack of balance and coordination. It does not describe slow, writhing movements.
• Spastic: This term describes a condition where muscles are continuously contracted, leading to stiffness and tightness. It does not describe slow, writhing movements.
• Athetosis: This is the correct term for slow, writhing, involuntary movements, often seen in conditions like cerebral palsy.
• Tonic: This term refers to muscle tension or contraction, often in a sustained manner, and does not describe slow, writhing movements.

In summary, athetosis is the term that best fits the description of slow, writhing, involuntary movements.