rostral

https://doi.org/10.1351/goldbook.11189
  1. Pertaining to, resembling, or having a rostrum or beak.
  2. Situated toward the beak (thus, oral and nasal region), which may mean superior (in relationships of areas of the spinal cord) or anterior or ventral (in relationships of brain areas).
  3. Closer to the head.
Compare: caudal
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 802 (https://doi.org/10.1515/pac-2015-1202)