Dorsal portion of the pons, containing cranial nervee nuclei, ascending and descending tracts and reticular nuclei. It is continuous with the reticular formation of the medulla (Carpenter, A Core Text of Neuroanatomy, 3rd ed, 1985, pg 133).
postbranchial lamina
posterior cleithral process
posterior dentation of dorsal fin spine 2
posterior dentation of pectoral fin spine
posterior fascicle of palatopharyngeus
posterior lamina recurvata
posterior lateral line primordium +
posterior maxillary process +
posterior maxillary process dorsal process
posterior neural keel +
posterior neural rod +
posterior part of tongue +
posterior presumptive neural plate
posterior ramus of cleithrum
posterior segment of eyeball +
posterolingual region
postnasal wall
postorbital process
pre-Botzinger complex
pre-chordal neural plate +
presacral shield
presubiculum +
primary choana
primary nerve cord +
primary olfactory fiber layer
primary vitreous
primitive superior sagittal sinus +
processus confluens
processus lingularis of nasal skeleton
processus posterior of parasphenoid
proctodeum portion of cloaca
procurrent spur
prootic bone +
prostatic utricle
pterygopharyngeal part of superior pharyngeal constrictor