They were typically constructed with a tiered structure surrounding a central table, allowing a larger audience to see the dissection of cadavers more closely than would have been possible in a non-specialized setting.
An anatomical theatre was usually a room of roughly amphitheatrical shape, in the centre of which would stand a table on which the dissection of human or animal bodies took place.
Around this table were several circular, elliptic or octagonal tiers with railings, steeply tiered so that observers (typically students) could stand and observe the dissection below, without spectators in the front-most rows blocking their view.
The anatomical theatre of the University of Uppsala is well-known, having been completed in 1663 by medical profession and amateur architect Olaus Rudbeck (1630-1702).
Rudbeck had spent time in the Dutch city of Leiden, and the construction of both the anatomical theatre and the botanical garden he founded in Uppsala in 1655 were influenced by his experiences there.