Template:Shumway1935 table2
From Embryology
(Synonyms in parentheses) |
Anterior (cephalic, cranial, rostral) — head end. |
Posterior (caudal) — tail end. |
Dorsal — back side. |
Ventral — belly side. |
Lateral — either right (dextral) side, or left (sinistral) side. |
Mesial (median, medial) — middle. |
Proximal — nearer the point of reference. |
Distal — further from the point of reference. |
Transverse (horizontal) — a plane intersecting the antero-posterior axis at right angles, dividing anterior portion from posterior. |
Sagittal — the mesial plane of the body or any plane parallel to it, dividing right portion from left. |
Frontal (coronal) — any plane at right angles to both transverse and mesial planes dividing dorsal portion from ventral. |
Primordium (anlage, Germ.; ébauche, Fr.) — the first recognizable stage in the development of any new part of the embryo. |
Invagination — the growth of a surface in (toward the point of reference). |
Evagination — the growth of a surface out (away from the point of reference). |