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Hip Bone Anatomy – Medial or Internal Markings

Hip Bone Medial (Internal) Markings:

Ilium Bone Markings:

  1. image descriptionIliac Crest or Crest of Ilium (Crista iliaca) is the curved upper ridge of the ilium. It is an attachment point for the latissimus dorsi, quadratus lumborum, erector spine, iliacus, tensor fasciae latae, and abdominal muscles.
Hip bone
Iliac crest - Hip Bone
Iliac crest - Hip Bone - Colored
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  1. image descriptionAnterior Superior Iliac Spine or ASIS (Spina iliaca anterior superior) is a projection from the anterior portion of the iliac crest. The sartorius muscle and inguinal ligament attach to this elevation.
Hip bone
Superior anterior iliac spine - Hip Bone
Superior anterior iliac spine - Hip Bone - Colored
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  1. image descriptionAnterior Inferior Iliac Spine or AIIS (Spina iliaca anterior inferior) is a projection below the anterior superior iliac spine that serves as an attachment point for the rectus femoris muscle.
Hip bone
Inferior anterior iliac spine - Hip Bone
Inferior anterior iliac spine - Hip Bone - Colored
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  1. image descriptionPosterior Superior Iliac Spine (Spina iliaca posterior superior) is a projection from the posterior of the crest. It is an attachment point for the posterior sacroiliac ligament and multifidus muscle.
Hip bone
Superior Posterior iliac spine - Hip Bone
Superior Posterior iliac spine - Hip Bone - Colored
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  1. image descriptionPosterior Inferior Iliac Spine (Spina iliaca posterior inferior) is a curvature found inferior to the posterior superior iliac spine. The two spines are separated by a small notch. A ligament that binds the ilium to the sacrum attaches here.
Hip bone
Inferior Posterior iliac spine - Hip Bone
Inferior Posterior iliac spine - Hip Bone - Colored
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  1. image descriptionIliac Fossa (Fossa iliaca) is a broad depression located along the anteromedial surface, inferior to the iliac crest. It is an attachment point for the iliacus muscle.
Hip bone
Iliac fossa - Hip Bone
Iliac fossa - Hip Bone - Colored
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  1. image descriptionIliac tuberosity (Tuberositas iliaca) is a roughened area located inferior to the crest and posterior to the iliac fossa. The posterior sacroiliac ligaments and the sacrospinalis and multifidus muscles attach here.
Hip bone
Iliac tuberosity - Hip Bone
Iliac tuberosity - Hip Bone - Colored
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  1. image descriptionAuricular surface (Facies auricular ossis ilii) is a L-shaped or ear-shaped roughened surface situated inferior to the tuberosity. This area articulates with auricular surface of sacrum to form the sacroiliac joint.
Hip bone
Auricular surface - Hip Bone
Auricular surface - Hip Bone - Colored
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  1. image descriptionArcuate line (Linea arcuata) is a curved ridge that forms the inferior boundary of the iliac fossa. It also delinates the boundary between the body and the wing (large expanded portion; ala) of the ilium.
Hip bone
Arcuate line - Hip Bone
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Pubic Bone (Pubis) Markings:

  1. image descriptionSymphysis pubis or pubic symphysis (Symphysis pubica; symphysis pubis) is the cartilaginous joint between the two pubic bones
Hip bone
Symphysis pubis - Hip Bone
Symphysis pubis - Hip Bone - Colored
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  1. image descriptionBody of pubis (Corpus ossis pubis) is the flatten, medial end of the pubis that lies adjacent to the symphysis.
Hip bone
Body of pubis - Hip Bone
Body of pubis - Hip Bone - Colored
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  1. image descriptionInferior pubic ramus (Ramus inferior ossis pubis) is a thin, flat extension from the medial pubis that joins the ischial ramus. The adductor brevis, adductor magnus, and gracilis muscles attach along this surface.
Hip bone
Inferior pubic ramus - Hip Bone
Inferior pubic ramus - Hip Bone - Colored
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  1. image descriptionSuperior pubic ramus (Ramus superior ossis pubis) is a band of bone that runs along the superior aspect of the pubis. It is an attachment point for the pectineus muscle.
Hip bone
Superior pubic ramus - Hip Bone
Superior pubic ramus - Hip Bone - Colored
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  1. image descriptionPectineal line (Linea pectinea; pecten ossis pubis) is a sharp ridge that runs along the superior margin of the superior pubic ramus. This area, which is also called the pecten pubis, is an the attachment point for the pectineus muscle.
Hip bone
Pectineal line - Hip Bone
Pectineal line - Hip Bone - Colored
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  1. image descriptionPubic crest (Crista pubica) is a short, superiomedial ridge that runs extends horizontally from the symphysis to the pubic tubercle. It is an attachment point for the abdominal muscles.
Hip bone
Pubic crest - Hip Bone
Pubic crest - Hip Bone - Colored
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  1. image descriptionPubic tubercle (Tuberculum pubicum) is a projection from the lateral end of the pubic crest that serves as an attachment point for the inguinal ligament.
Hip bone
Pubic tubercle - Hip Bone - Colored
Pubic tubercle - Hip Bone - Colored
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Ischium Bone Markings:

  1. image descriptionIschial tuberosity (Tuber ischiadicum) is a roughened, curved eminence located at the junction of the posterior and inferior borders of the ischium. It supports the weight of the body when sitting and serves as an attachment point for the sacrotuberous ligament and the hamstring muscles, quadratus femoris muscle, and inferior gemellus muscle.
Hip bone
Ischial tuberosity - Hip Bone
Ischial tuberosity - Hip Bone - Colored
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  1. image description(Inferior) Ramus of Ischium (Ramus os-sis ischii) is an anterior extension from the ischial tuberosity that joins the inferior pubic ramus. The adductor magnus and obturator externus muscles attach to this surface.
Hip bone
Ramus of ischium - Hip Bone
Ramus of ischium - Hip Bone - Colored
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  1. image descriptionIschial Spine (Spina ischiadica) is a sharp projection from the posterior margin of the ischium. It is an attachment point for the sacrospinous ligament.
Hip bone
Ischial spine - Hip Bone
Ischial spine - Hip Bone - Colored
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  1. image descriptionLesser Sciatic Notch (Incisura ischiadica minor) is a indentation located below the spine. The sacrotuberous and sacrospinous ligaments transform the notch into the lesser sciatic foramen, which allows the obturator internus tendon and nerve, internal pudendal vessels, and pudendal nerve to pass.
Hip bone
Lesser sciatic notch - Hip Bone
Lesser sciatic notch - Hip Bone - Colored
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Interdivisional Bone Markings:

  1. image descriptionGreater Sciatic Notch (Incisura ischiadica major) is a large indentation located below the posterior inferior iliac spine. The sacrotuberous and sacrospinous ligaments transform the notch into the greater sciatic foramen, which allows the passage of the performs muscle, 7 nerves (including the sciatic nerve), and 3 sets of blood vessels.
Hip bone
Greater sciatic notch - Hip Bone
Greater sciatic notch - Hip Bone - Colored
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  1. image descriptionObturator Foramen (Foramen obturatum; foramen obturatorium) is a large anterior opening enclosed by the pubic and ischial rami. The foramen, which is mostly covered by a ligamentous membrane, helps decrease the weight of the os coxae. The obturator vessels and nerves pass through a large canal in the upper portion of the membrane.
Hip bone
Obturator Foramen - Hip Bone
Obturator Foramen - Hip Bone - Colored
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Test yourself:

Part[1]: [image descriptionShow/image descriptionHide]

Hip bone - Test yourself part1
Hip bone - Test yourself part1 - Answers
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Part[2]: [image descriptionShow/image descriptionHide]

Hip bone - Test yourself part2
Hip bone - Test yourself part2 - Answers
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Part[3]: [image descriptionShow/image descriptionHide]

Hip bone - Test yourself part3
Hip bone - Test yourself part3 - Answers
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