NERVOUS SYSTEM SPECIAL SENSE
CEREBELLUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Primary fissure
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Posterolateral fissure
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Either A or B
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None of the above
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Detailed explanation-1: -The posterolateral fissure separates the flocculonodular lobe from the corpus cerebelli, and the primary fissure separates the corpus cerebelli into a posterior lobe and an anterior lobe (Figure 5.4). The cerebellum is also divided sagittally into three zones that run from medial to lateral (Fig.
Detailed explanation-2: -The most prominent ones are the horizontal, posterolateral, postlunate, primary and retrotonsillar fissures. These fissures divide the cerebellum into three main lobes, which are the anterior, posterior and flocculonodular lobes.
Detailed explanation-3: -The anterior and posterior lobes of the cerebellum are separated by the primary (preclival) fissure. The quadrangular lobule is divided into an anterior portion (in the anterior lobe) and posterior portion (in the posterior lobe) by the preclival fissure.