Anatomy of the Sacrum and Coccyx

These flashcards cover key anatomical structures and terms related to the sacrum and coccyx.

What are the lateral structures found on the sacrum that assist in muscle attachment and stabilization?

Lateral sacral crests.

What is the term for the openings in the sacrum that allow for the passage of nerves and blood vessels?

Sacral foramina.

What is the name of the first sacral vertebra?

First sacral vertebra (S1).

What is the term for the pointed structure at the bottom of the vertebral column?

Coccyx.

What structure connects to the superior articulating processes of the sacrum?

Superior articulating facets.

Which vertebra forms the third segment of the sacrum?

Third sacral vertebra (S3).

What is the clinical significance of the sacral hiatus?

It is an important landmark for procedures such as caudal epidural injections.

What is the collective term for the uppermost part of the sacrum articulating with the lumbar region?

Superior articulating processes.

What structures are considered the posterior elements of the sacral anatomy?

Medial sacral crest and lateral sacral crests.

Which vertebra is referred to as the fifth sacral vertebra?

Fifth sacral vertebra (S5).