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			== Ischial_spine ==
			<gallery>
			File:Gray343.png\|Ischial spine and surrounding structures
			File:Gray341.png\|Pelvic bones with ischial spine
			File:Sciatic_notches.png\|Greater and lesser sciatic notches
			File:Gray319.png\|Pelvic girdle anatomy
			File:Slide3ADA.JPG\|Ischial spine
			</gallery>

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'''Ischial Spine'''

The '''Ischial Spine''' is a significant anatomical structure in the human [[pelvis]]. It is a part of the [[ischium]], one of the three fused bones that make up the hip bone. The ischial spine projects medially and slightly posteriorly from the posterior part of the body of the ischium.

== Anatomy ==

The ischial spine is located superior to the [[Ischial tuberosity]] and inferior to the [[Greater sciatic notch]]. It serves as a landmark in the [[pelvis]] and is used in obstetrics to assess the progress of labor. The [[Pudendal nerve]], [[Internal pudendal vessels]], and the [[Nerve to obturator internus]] pass near the ischial spine.

== Clinical Significance ==

The ischial spine can be palpated per rectum or per vagina, which is useful in obstetrics for determining the level of the fetal head during labor. It is also a landmark for the administration of [[Pudendal nerve block]], a form of anesthesia used in childbirth and perineal surgery.

== See Also ==

* [[Pelvis]]
* [[Ischium]]
* [[Pudendal nerve block]]

== References ==

<references />

[[Category:Anatomy]]
[[Category:Obstetrics]]
[[Category:Medical terminology]]

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Ischial spine - Revision history

Prab: CSV import

Prab: CSV import