Pubis (bone)

Pubic of pelvis
Pelvic girdle
Male pelvis.
Details
Identifiers
Latin	os pubis
MeSH	D011630
TA98	A02.5.01.301
TA2	1346
FMA	16595
Anatomical terms of bone

For the bone in many mammals often called the penis bone, see baculum

In vertebrates, the pubic bone is the ventral and anterior of the three principal bones composing either half of the pelvis.

It is covered by a layer of fat, which is covered by the mons pubis.

It is divisible into a body, a superior ramus and an inferior ramus.

The body forms one-fifth of the acetabulum, contributing by its external surface both to the lunate surface and the acetabular fossa. Its internal surface enters into the formation of the wall of the lesser pelvis and gives origin to a portion of the obturator internus.

In the female, the pubic bone is anterior to the urethral sponge.

The left and right hip bones join at the pubic symphysis.

The pubis is the lower limit of the suprapubic region.

In dinosaurs

The clade Dinosauria is divided into the Saurischia and Ornithischia based on hip structure, including importantly that of the pubis.

• 
  Ornithischian pelvic structure (left side)
• 
  Saurischian pelvic structure (left side).

Additional images

• 
  Male reproductive system.
• 
  Right hip bone. External surface.
• 
  Right hip bone. Internal surface.
• 
  Plan of ossification of the hip bone.
• 
  Symphysis pubis exposed by a coronal section.
• 
  Left Levator ani from within.
• 
  The Obturator externus.
• 
  Left hip-joint, opened by removing the floor of the acetabulum from within the pelvis.
• 
  The arteries of the male pelvis.
• 
  Pelvis

External links

• Anatomy photo:44:st-0713 at the SUNY Downstate Medical Center - "The Male Pelvis: Hip Bone"

This article incorporates text in the public domain from page 236 of the 20th edition of Gray's Anatomy (1918)