- Acetabulum
Infobox Bone
Name = Acetabulum of pelvis
Latin =
GraySubject = 57
GrayPage = 237
Caption = Pelvic girdle
Caption2 = The Acetabulum
MusclesOrigins =
MusclesInsertions =
Articulations =
MeshName = Acetabulum
MeshNumber = A02.835.232.611.108
DorlandsPre = a_06
DorlandsSuf = 12104853
The acetabulum is a surface of thepelvis . The head of the femur meets with the pelvis at the acetabulum, forming the hipjoint .tructure
There are three bones of the os coxae (hip bone) that come together to form the acetabulum. Contributing a little more than two-fifths of the structure is the
ischium , which provides lower and side boundaries to the acetabulum. The ilium forms the upper boundary, providing a little less than two-fifths of the structure of the acetabulum. The rest is formed by the pubis, near the midline.It is bounded by a prominent uneven rim, which is thick and strong above, and serves for the attachment of the acetabular labrum, which reduces its opening, and deepens the surface for formation of the hip joint. At the lower part of the acetabulum is the
acetabular notch , which is continuous with a circular depression, the acetabular fossa, at the bottom of the cavity of the acetabulum. The rest of the acetabulum is formed by a curved, crescent-moon shaped surface, thelunate surface, where the joint is made with the head of the femur. Its counterpart in the pectoral girdle is theglenoid fossa .In
reptiles and inbirds , the acetabula are deep sockets.Etymology
The word acetabulum means "little vinegar cup", and was the
Latin word for a small vessel for storingvinegar (see acetabulum). The word was later also used as a unit of volume, equal to roughly 270 ml.
=AdditionalExternal links
* - "Major Joints of the Lower Extremity: Hip joint"
* - "The Female Pelvis: Articulated bones of pelvis"
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