Changes

* At the onset of pro-oestrus, large numbers of erythrocytes are present.

* At the onset of pro-oestrus, large numbers of erythrocytes are present.

* When true oestrus occurs, the nuber of erythrocytes is reduced, and the smear consists of superficial cells from the stratified squamous epithelium. Such cells include:

* When true oestrus occurs, the number of erythrocytes is reduced, and the smear consists of superficial cells from the stratified squamous epithelium. Such cells include:

** Anuclear cells

** Anuclear cells

** Cells with pyknotic nuclei

** Cells with pyknotic nuclei

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== Vaginal Epithelium ==

== Vaginal Epithelium ==