Which term describes an involuntary muscular contraction?

Which term describes an involuntary muscular contraction?

• A. Convulsion
• B. Epilepsy
• C. Hyperglycemia
• D. Hypersensitivity

Answer: (A)

The main idea here is naming the muscular action you can’t control. A convulsion describes a sudden, involuntary contraction of muscles, which often causes rapid, jerking movements. It’s the term used to describe that muscle activity happening outside a person’s control—like what you see during a seizure, but focused on the physical shaking itself. Epilepsy is a condition marked by recurrent seizures, so it describes a disorder, not the single muscular event. Hyperglycemia is simply high blood sugar and isn’t about muscle contractions. Hypersensitivity means an exaggerated immune response, not a muscular reaction. So the word that fits the description of an involuntary muscular contraction is convulsion.

The main idea here is naming the muscular action you can’t control. A convulsion describes a sudden, involuntary contraction of muscles, which often causes rapid, jerking movements. It’s the term used to describe that muscle activity happening outside a person’s control—like what you see during a seizure, but focused on the physical shaking itself.

Epilepsy is a condition marked by recurrent seizures, so it describes a disorder, not the single muscular event. Hyperglycemia is simply high blood sugar and isn’t about muscle contractions. Hypersensitivity means an exaggerated immune response, not a muscular reaction. So the word that fits the description of an involuntary muscular contraction is convulsion.