Among the villagers Pn Dvořk was a person of some consequence.
To the roof of the thalamencephalon is attached a flattened sack (pn) which is probably the pineal gland.
It arises (fig. 253 pn) as a sack-like diverticulum of the thalamencephalon extending at first both backwards and forwards.
During the same stage the pineal gland grows into a sack-like body, springing from the ...