ACETABULAR NOTCH Meaning and
Definition
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The acetabular notch is a anatomical feature found in the human pelvis. Specifically, it is a concave depression or groove located on the inferior aspect of the acetabulum, which is the socket-like structure in the pelvic bone. The acetabulum itself is a key component of the hip joint, forming the meeting point for the head of the femur or thigh bone.
In terms of its structure, the acetabular notch is typically positioned on the superior margin of the acetabulum. It is important to note that the notch is a distinct, U-shaped groove that creates a separation between two particular regions of the acetabulum: the anterior inferior iliac spine (AIIS) and the posterior inferior iliac spine (PIIS). The AIIS refers to a bony prominence on the anterior side of the ilium, while the PIIS is positioned on the posterior side.
This anatomical feature plays a significant role in the overall stability and range of motion of the hip joint. It provides additional space and flexibility for ligaments and other soft tissues in the area, enhancing the joint's ability to move freely. Moreover, the acetabular notch serves as a landmark for anatomical reference during surgical procedures or diagnostic assessments involving the hip joint, aiding in the accurate placement of implants or guiding medical interventions.
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Cotyloid n., incisura acetabuli.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for ACETABULAR NOTCH
- zcetabular notch
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- acstabular notch
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Etymology of ACETABULAR NOTCH
The word "acetabular" is derived from the Latin term "acetabulum", which means "a vinegar cup" or "a small shallow dish". In anatomy, "acetabulum" refers to the cup-shaped socket of the hip bone where the femur (thigh bone) joins to form the hip joint.
The word "notch" also has Latin roots, coming from the Old English word "nohhyr", which means "nick" or "indentation". A notch refers to a V-shaped indentation or cut in an object.
Therefore, the term "acetabular notch" is a combination of these two words. It specifically denotes a V-shaped indentation or notch located in the rim of the acetabulum (hip socket).
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