Question

Alcoholic gait, nystagmus after RTA, which lobe of cerebellum is affected?

• A. Flocculonodular
• B. Dentate
• C. Anterior lobe
• D. Vermis

Hint:

The flocculonodular lobe plays a critical role in maintaining balance and coordinating eye movements, and its dysfunction can lead to symptoms like nystagmus and ataxia.

Answer 1

The Correct Option is A

The cerebellum is a part of the brain that plays a crucial role in motor control. When specific symptoms such as an alcoholic gait and nystagmus are observed following a road traffic accident (RTA), it suggests which part of the cerebellum might be affected.

Explanation: The cerebellum is divided into three main parts: the Flocculonodular lobe, the Vermis, and the Anterior lobe.

• The Flocculonodular lobe is involved in maintaining balance and coordinating eye movements. Damage to this lobe can result in nystagmus (rapid, involuntary eye movements) and balance disorders, often presenting as an unsteady gait.
• The Dentate nucleus is associated with planning and executing fine motor actions but is not directly mentioned in the symptoms of alcoholic gait and nystagmus.
• The Anterior lobe is primarily involved in the regulation of posture and muscle tone.
• The Vermis primarily affects posture and locomotion when impaired.

Given the symptoms of an alcoholic gait and nystagmus, the Flocculonodular lobe is most likely affected because it is responsible for balance and visual stability.

The correct option is: Flocculonodular