Final answer:
The anterior perspective of the sacrum includes the sacral promontory, anterior sacral foramina, and features the anteriorly concave sacrococcygeal primary curve.
Step-by-step explanation:
The anterior perspective of the sacrum involves the sacral promontory, which is the anterior lip of the sacrum's superior base. Additionally, there are anterior (ventral) sacral foramina, which are paired openings allowing anterior branches of sacral spinal nerves to exit the sacrum.
The sacrum, part of the vertebral column, presents a sacrococcygeal curve that is anteriorly concave, a curvature retained from the original fetal curvature and is a primary curve of the spine.