proximal

in anatomy
antonym: distal
https://doi.org/10.1351/goldbook.11148

Nearer to an anatomical point of origin or attachment, or the midline of the body.

Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 797 (https://doi.org/10.1515/pac-2015-1202)