Hip bone: Pubis

Hip bone #2: Pubis. Anatomy & FunctionKey facts about the anatomy of the pubis
~ 3 min

General information about the structure of the hip bone, as well as the peculiarities of the structure of the ilium are discussed in the previous PDF note.

Let us examine the structure of the pubis (os pubis).

It has three large parts:
It has three large parts:

Pubis (os pubis)

  • body of the pubis (corpus ossis pubis)

Body of the pubis (corpus ossis pubis)
Body of the pubis (corpus ossis pubis)
  • superior pubic ramus (ramus superior ossis pubis)

    Superior pubic ramus (ramus superior ossis pubis)
    Superior pubic ramus (ramus superior ossis pubis)
  • inferior pubic ramus (ramus inferior ossis pubis)

Inferior pubic ramus (ramus inferior ossis pubis)
Inferior pubic ramus (ramus inferior ossis pubis)

There is a symphysial surface (facies symphysialis) to which the pubic symphysis is attached. It is located the border of the transition of the superior ramus to the inferior ramus on the medial side.

Symphysial surface (facies symphysialis)
Symphysial surface (facies symphysialis)

On the superior ramus of the pubis lies the pubic tubercle (tuberculum pubicum), which is connected to the iliopubic eminence (eminentia iliopubica)

Pubic tubercle (tuberculum pubicum)
Pubic tubercle (tuberculum pubicum)

by the pubic crest (crista pubica);

Pubic crest (crista pubica)
Pubic crest (crista pubica)

and then the pecten pubis (pecten ossis pubis).

Pecten pubis (pecten ossis pubis)
Pecten pubis (pecten ossis pubis)
Iliopubic eminence (eminentia iliopubica)
Iliopubic eminence (eminentia iliopubica)

Connecting with each other, the pubis and the ischium form the obturator foramen (foramen obturatum).

Obturator foramen (foramen obturatum)
Obturator foramen (foramen obturatum)

On the inferior pubis ramus, downward from this foramen, there is the obturator groove (sulcus obturatorius), in which the nerves and vessels pass.

Obturator groove (sulcus obturatorius)
Obturator groove (sulcus obturatorius)

There are tubercles on the sides of the obturator foramen on the pubis. These are the anterior obturator tubercle (tuberculum obturatorium anterius) and the posterior obturator tubercle (tuberculum obturatorium posterius).

Anterior obturator tubercle (tuberculum obturatorium anterius)
Anterior obturator tubercle (tuberculum obturatorium anterius)
Posterior obturator tubercle (tuberculum obturatorium posterius) pubis
Posterior obturator tubercle (tuberculum obturatorium posterius) pubis
Dictionary

Pubis

pubis
os pubis
body of pubis
corpus ossis pubis
superior pubic ramus
ramus superior ossis pubis
inferior pubis ramus
ramus inferior ossis pubis
symphysial surface
facies symphysialis
pubic tubercle
tuberculum pubicum
pubic crest
crista pubica
pecten pubis
pecten ossis pubis
iliopubic ramus
eminentia iliopubica
obturator foramen
foramen obturatum
obturator groove
sulcus obturatorius
anterior obturator tubercle
tuberculum obturatorium anterius
posterior obturator tubercle
tuberculum obturatorium posterius
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