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Quizzes > Health & Medicine

Pelvic Girdle Labeling Quiz: Identify bones and landmarks

Quick, free pelvic girdle anatomy quiz with instant results

Editorial: Review CompletedCreated By: Sujit LokhandeUpdated Aug 23, 2025
Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art style pelvic girdle, on golden yellow background with blank labels for anatomy quiz.

This pelvic girdle labeling quiz helps you practice naming each bone and landmark and see instant feedback as you go. Build confidence, then explore related practice with the hip bone labeling quiz, reinforce features with a bone landmarks quiz, or review the whole body with a skeletal system labeling quiz.

Which structure is the large opening in the pelvic bone formed by the ischium and pubis?
Obturator foramen
Acetabulum
Greater sciatic foramen
Pelvic inlet
The obturator foramen is formed by the fusion of the ischium and pubis and represents the largest foramen in the body. It allows passage for the obturator nerve and vessels. The acetabulum is the hip socket, and the greater sciatic foramen is above the ischial spine.
Which structure is the prominent superior ridge along the ilium that provides attachments for abdominal and back muscles?
Anterior superior iliac spine
Arcuate line
Iliac crest
Posterior superior iliac spine
The iliac crest forms the superior border of the ilium and is a major attachment site for abdominal and back muscles. The anterior and posterior superior iliac spines are specific points along this crest. The arcuate line lies on the inner surface of the ilium.
What is the name of the deep socket in the pelvis that articulates with the head of the femur?
Iliac fossa
Ischial tuberosity
Obturator foramen
Acetabulum
The acetabulum is the concave surface of the pelvis where the femoral head fits to form the hip joint. It is formed by the fusion of the ilium, ischium, and pubis. The obturator foramen and iliac fossa are different structures, and the ischial tuberosity bears weight when sitting.
Which structure represents the cartilaginous joint uniting the two pubic bones at the front of the pelvis?
Ischial spine
Sacroiliac joint
Pubic symphysis
Pubic tubercle
The pubic symphysis is a fibrocartilaginous joint that connects the left and right pubic bones at the anterior midline. It allows slight movement to accommodate childbirth. The pubic tubercle is a bony projection lateral to the symphysis.
What is the name of the joint formed between the sacrum and the ilium at the posterior pelvis?
Sacroiliac joint
Lumbosacral joint
Pubic symphysis
Sacrococcygeal joint
The sacroiliac joint is formed by the articulation of the sacral auricular surface with the ilium's auricular surface. It transfers weight from the upper body to the lower limbs. The lumbosacral joint connects the lumbar spine to the sacrum, and the sacrococcygeal joint is between the sacrum and coccyx.
On the inner surface of the ilium, which ridge lies just inferior to the iliac fossa and forms part of the pelvic brim?
Iliac crest
Iliac tubercle
Auricular surface
Arcuate line
The arcuate line is a smooth, rounded border on the inner surface of the ilium and contributes to the pelvic brim. It lies below the iliac fossa and transitions into the pectineal line of the pubis. The auricular surface articulates with the sacrum and the iliac crest is the superior border.
Which projection on the ischium bears the weight in seated posture and gives attachment to the sacrotuberous ligament?
Obturator crest
Ischial spine
Ischial tuberosity
Acetabular rim
The ischial tuberosity is the roughened area on the ischium that supports body weight when sitting and serves as an attachment for the sacrotuberous ligament and hamstring muscles. The ischial spine is a separate projection for the sacrospinous ligament.
The pelvic brim separates the greater and lesser pelvis. Which of these marks its posterior boundary?
Pubic symphysis
Sacral promontory
Ischial tuberosity
Iliac crest
The sacral promontory is the anterior lip of the first sacral vertebra and forms the posterior boundary of the pelvic brim. The iliac crest is above, and the pubic symphysis is at the front.
Which bony landmark on the iliac crest serves as an attachment for the sartorius muscle and is located anteriorly?
Anterior inferior iliac spine
Anterior superior iliac spine
Posterior superior iliac spine
Iliac tubercle
The anterior superior iliac spine (ASIS) is a prominent projection at the front of the iliac crest and is the origin of the sartorius muscle and inguinal ligament. The posterior superior iliac spine is on the back, and the AIIS lies just below the ASIS.
Which roughened area on the medial ilium articulates with the sacrum to form the sacroiliac joint?
Arcuate line
Iliac tuberosity
Auricular surface
Iliac fossa
The auricular surface of the ilium is rough and ear-shaped, articulating with the sacral auricular surface to form the sacroiliac joint. The iliac fossa is a smooth depression for muscle attachment, and the arcuate line is part of the pelvic brim.
The arcuate line transitions into which line on the pubis as part of the iliopectineal line?
Pectineal line
Pubic crest
Iliopubic eminence
Pubic tubercle
The arcuate line of the ilium joins the pectineal line of the pubis to form the continuous iliopectineal line along the pelvic brim. The pubic crest and tubercle are more anterior, and the iliopubic eminence is the junction point but not the continuation itself.
Which gluteal line on the ilium extends from the iliac crest toward the greater sciatic notch, serving as an attachment for part of the gluteus maximus?
Posterior gluteal line
Inferior gluteal line
Anterior gluteal line
Iliac fossa
The posterior gluteal line extends from the iliac crest toward the greater sciatic notch and serves as the origin for part of the gluteus maximus. The anterior and inferior gluteal lines are located more anteriorly and inferiorly, respectively.
Which fibrocartilaginous structure deepens the acetabulum and helps stabilize the femoral head?
Acetabular fossa
Acetabular labrum
Acetabular notch
Lunate surface
The acetabular labrum is a ring of fibrocartilage attached to the rim of the acetabulum that deepens the socket and enhances the stability of the hip joint. The lunate surface bears weight, and the fossa and notch are distinct features within the acetabulum.
The pelvic outlet is bounded posteriorly by which bony landmark?
Tip of the coccyx
Ischial spine
Sacral promontory
Pubic symphysis
The tip of the coccyx forms the posterior boundary of the pelvic outlet. The sacral promontory marks the pelvic inlet, and the ischial spines and pubic symphysis outline other edges of the pelvis.
Which ligament spans from the ischial spine to the sacrum, converting the greater sciatic notch into a foramen?
Iliofemoral ligament
Sacrospinous ligament
Inguinal ligament
Sacrotuberous ligament
The sacrospinous ligament attaches from the ischial spine to the sacrum and coccyx, transforming the greater sciatic notch into the greater sciatic foramen. The sacrotuberous ligament spans from the ischial tuberosity, and the iliofemoral and inguinal ligaments are unrelated.
Which small bony projection marks the junction of the arcuate line of the ilium and pectineal line of the pubis on the pelvic brim?
Iliopubic eminence
Pubic crest
Iliac tubercle
Pubic tubercle
The iliopubic eminence is the raised area on the pelvic brim where the arcuate line of the ilium meets the pectineal line of the pubis. It serves as an anatomical landmark between the false and true pelvis. The pubic tubercle and crest are located more anteriorly on the pubis.
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Study Outcomes

  1. Identify Pelvic Girdle Bones -

    Use the pelvic girdle labeling quiz to pinpoint each bone, including the ilium, ischium, and pubis, and understand their roles in the pelvic structure.

  2. Differentiate Pelvic Girdle Landmarks -

    Distinguish key anatomical landmarks such as the iliac crest and pubic symphysis by completing the pelvic girdle anatomy quiz, enhancing your recognition skills.

  3. Apply Anatomical Terminology -

    Master precise terms for pelvic joints and features, like the sacroiliac joint and acetabulum, through hands-on labeling exercises.

  4. Recall Structural Relationships -

    Reinforce your memory of how bones and landmarks connect within the pelvic girdle structure quiz for better retention.

  5. Visualize Spatial Orientation -

    Develop a 3D understanding of pelvic alignment and orientation by interacting with labeled diagrams and receiving instant feedback.

  6. Improve Assessment Confidence -

    Build confidence in your anatomical knowledge through timed challenges in the pelvic girdle labeled quiz, preparing you for real-world applications.

Cheat Sheet

  1. Bony Composition and Fusion -

    The pelvic girdle is formed by the fusion of the ilium, ischium, and pubis bones by around age 25, creating the sturdy os coxae. Remember the mnemonic "IIP" (Ilium, Ischium, Pubis) to breeze through your pelvic girdle labeling quiz. [Gray's Anatomy, 41st ed.]

  2. Key Pelvic Landmarks -

    Palpate and label landmarks like the ASIS, PSIS, acetabulum, ischial tuberosity, and obturator foramen to master your pelvic girdle labeled quiz. A useful trick is "A P A I O" (Acetabulum, Pubic tubercle, ASIS, Ischial tuberosity, Obturator foramen) - visualize them as points on a clock face. [Netter's Anatomy Atlas]

  3. Pelvic Joints and Ligament Stability -

    The sacroiliac joints (synovial plane) and the pubic symphysis (fibrocartilaginous) provide both stability and slight mobility during gait and weight transfer. Recall "SIPS" for Sacroiliac, Iliolumbar, Pubic symphysis, Sacrotuberous ligaments to cover the main stabilizers in your pelvic girdle structure quiz. [Clin Anat, 2018]

  4. Sexual Dimorphism -

    Female pelves have a wider inlet and subpubic angle (>90°), while male pelves are more heart-shaped with a narrower inlet (<70°). Keep these measurements in mind when tackling the pelvic girdle anatomy quiz to quickly differentiate male versus female pelves. [Am J Phys Anthropol, 2015]

  5. Functional Mechanics and Clinical Tips -

    The pelvic girdle transfers body weight from the spine to the lower limbs and supports abdominal organs; misalignment can affect gait or cause low back pain. Test your understanding with the pelvic girdle labeling quiz by focusing on pelvic tilt angles and their impact on lumbar posture for real-world clinical insight. [J Orthop Sports Phys Ther, 2020]

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