Anatomy of the Pelvic Girdle and Sacrum: Key Landmarks and Joints

Sacral Canal

Sacral promontory

Median sacral crest

Spinous tubercles

posterior sacral foramina

anterior sacral foramina

Coccyx

superior articular facet

ilium

ala of ilium

iliac fossa

iliac crest

anterior superior iliac spine

anterior inferior iliac spine

posterior superior iliac spine

posterior inferior iliac spine

auricular surface of ilium

arcuate line of ilium

gluteal lines

ischium

body of ischium

ischial ramus

ischial tuberosity

lesser sciatic notch of ischium

greater sciatic notch

ischial spine

pubis

superior pubic ramus

inferior pubic ramus

pubic tubercle

pectineal line of pubis

iliopubic eminence

Acetabulum

obturator foramen

pubic symphysis joint

sacroiliac joint

subpubic angle

pelvic brim

pelvic inlet

pelvic outlet

true (lesser) pelvis

false pelvis

inguinal ligament

ligament extending from pubic bone to anterior superior iliac spine, forming lower border of abdomen