Henry Gray (18211865). Anatomy of the Human Body. 1918. 6c. 2.
The Pelvis The pelvis, so called from its resemblance to a
basin, is a bony ring, interposed between the movable vertebræ
of the vertebral column which it supports, and the lower limbs
upon which it rests; it is stronger and more massively
constructed than the wall of the cranial or thoracic cavities,
and is composed of four bones: the two hip bones laterally and
in front and the sacrum and coccyx behind. The pelvis is divided
by an oblique plane passing through the prominence of the
sacrum, the arcuate and pectineal lines, and the upper margin of
the symphysis pubis, into the greater and the lesser pelvis. The
circumference of this plane is termed the linea terminalis or
pelvic brim. The Greater or False Pelvis (pelvis major).The
greater pelvis is the expanded portion of the cavity situated
above and in front of the pelvic brim. It is bounded on either
side by the ilium; in front it is incomplete, presenting a wide
interval between the anterior b