Examlex
Draw the dot structures for the atomic or molecular species shown. Be sure to include all relevant resonance structures.
-SO₂
Sacral Hiatus
An opening or gap in the posterior part of the sacral bone of the vertebral column through which nerves and membranes can pass.
Superior Articular Facet
Superior Articular Facet pertains to the upper joint surface of a vertebra that articulates with the inferior articular facet of the vertebra directly above it, contributing to spinal stability and movement.
Median Sacral Crest
A ridge or series of bumps along the back surface of the sacrum, forming the fused spinous processes of the sacral vertebrae.
Posterior Sacral Foramina
Openings in the sacrum bone that allow nerves and blood vessels to pass through.
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