Lobules I/II

Cerebellum Protocol Project
Whole Cerebellum	Lobe Definitions	Vermis Definition	Lobule Delineation
Lobules I/II	Lobule III	Lobule IV	Lobule V
Lobule VI	Lobule VIIAf	Lobule VIIAt	Lobule VIIB
Lobule VIIIA	Lobule VIIIB	Lobule IX	Lobule X
Lobules VIIIA-X vermis		Lobules VI-VIIB vermis

Lobule I,II

Location: Within 10-12 slices to the left and right of the mid-sagittal in the mid horizontal region
Description: It is a very thin hair like lobule, best identified in the sagittal orientation as seen below. It is the small thin curve of grey matter bordering the superior cerebellar peduncles and nearly touching the spinal cord.
The most difficult aspect of delineating this lobule is determining the boundary between Lobule I,II and the corpus. Make this transition gradual. This lobule disappears when there is once again a connection between the the corpus and the spinal cord.