Palmate folds
Plicae palmatae
Definition
The wall of the canal presents an anterior and a posterior longitudinal ridge, from each of which proceed a number of small oblique columns, the palmate folds, giving the appearance of branches from the stem of a tree; to this arrangement the name arbor vitæ uterina is applied. The folds on the two walls are not exactly opposed, but fit between one another so as to close the cervical canal.
References
