Pelvis Anatomy Quiz

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What structure separates the pelvic cavity from the perineum?

  • Pelvic floor (correct)
  • Obturator membrane
  • Pubic symphysis
  • Pelvic inlet

Which of the following correctly describes the true pelvis?

  • It is the lower part of the abdominal cavity.
  • It contains the abdominal organs.
  • It is larger than the false pelvis.
  • It encloses the pelvic cavity. (correct)

Which part of the pelvic bone forms the hip joint with the femur?

  • Acetabulum (correct)
  • Obturator foramen
  • Ischial spine
  • Sacrum

What forms the margin of the pelvic inlet?

<p>Linea terminalis (A)</p> Signup and view all the answers

What is located inferior to the pelvic floor?

<p>Perineum (A)</p> Signup and view all the answers

Which bones are included in the pelvis?

<p>Pelvic bones and sacrum (A)</p> Signup and view all the answers

Which notch is located posteriorly and is divided by the ischial spine?

<p>Lesser sciatic notch (A), Greater sciatic notch (B)</p> Signup and view all the answers

The obturator foramen is mostly closed by which structure?

<p>Obturator membrane (C)</p> Signup and view all the answers

What is the most superior component of the pelvic bone?

<p>Ilium (A)</p> Signup and view all the answers

At what age do the components of the pelvic bone typically fuse into a single bone?

<p>16 to 18 years (C)</p> Signup and view all the answers

What structure lies immediately superior to the sacral surface of the ilium?

<p>Arcuate line (A)</p> Signup and view all the answers

Which part of the ilium is involved in forming the wall of the lesser pelvis?

<p>Pelvic part (A)</p> Signup and view all the answers

What is the anterior termination of the iliac crest known as?

<p>Anterior superior iliac spine (C)</p> Signup and view all the answers

What feature of the iliac crest projects laterally near the anterior end of the crest?

<p>Tuberculum of the iliac crest (A)</p> Signup and view all the answers

What surface of the iliac wing is concave and forms the iliac fossa?

<p>Internal surface (D)</p> Signup and view all the answers

Which feature serves as the point of attachment for the rectus femoris muscle?

<p>Anterior inferior iliac spine (C)</p> Signup and view all the answers

Which structure is formed by the fusion of five sacral vertebrae?

<p>Sacrum (A)</p> Signup and view all the answers

What is the name of the prominent feature of the ischium that provides attachment for lower limb muscles?

<p>Ischial tuberosity (A)</p> Signup and view all the answers

Which ramus of the pubis projects laterally and inferiorly to connect with the ischium?

<p>Inferior ramus (A)</p> Signup and view all the answers

What structure marks the anterior edge of the body of the first sacral vertebra and projects forward?

<p>Promontory (D)</p> Signup and view all the answers

Which surface of the superior pubic ramus is marked by the obturator groove?

<p>Inferior surface (A)</p> Signup and view all the answers

What is the term for the sharp superior margin of the triangular surface of the pubis?

<p>Pecten pubis (A)</p> Signup and view all the answers

Which part of the pelvis articulates with the ilium?

<p>Pubis (B)</p> Signup and view all the answers

Which area of the sacrum is a large roughened surface that supports ligament attachment?

<p>Sacro-iliac joint area (C)</p> Signup and view all the answers

Flashcards

Pelvic Cavity

The space enclosed by the pelvic bones, sacrum, and coccyx, containing organs of the reproductive and excretory systems.

False (Greater) Pelvis

The superior part of the pelvis, part of the abdominal cavity above the pelvic inlet.

True (Lesser) Pelvis

The inferior part of the pelvis, containing the pelvic cavity.

Pelvic Inlet

The rim of the pelvic cavity, completely encircled by bone.

Signup and view all the flashcards

Pelvic Floor

Fibromuscular structure separating the pelvic cavity from the perineum below.

Signup and view all the flashcards

Pelvic Outlet

The inferior margin of the perineum.

Signup and view all the flashcards

Pelvic Bone

The irregular bone forming part of the lateral walls of the pelvis.

Signup and view all the flashcards

Acetabulum

The socket in the pelvic bone for articulation with the head of the femur, creating the hip joint.

Signup and view all the flashcards

Ilium

The largest and most superior bone of the pelvis, contributing to the hip joint and providing attachment sites for various muscles.

Signup and view all the flashcards

Arcuate Line

A rounded ridge on the inner surface of the ilium, separating its upper and lower parts and contributing to the pelvic brim.

Signup and view all the flashcards

Iliac Crest

The thickened superior margin of the ilium, providing attachment sites for muscles and fascia of the abdomen, back, and lower limb.

Signup and view all the flashcards

Iliac Fossa

A concave surface on the anteromedial surface of the ilium, located on the 'wing' part and providing attachment for muscles.

Signup and view all the flashcards

Anterior Superior Iliac Spine

A prominent bony projection located at the anterior end of the iliac crest, serving as a muscle attachment point.

Signup and view all the flashcards

Posterior Superior Iliac Spine

A prominent bony projection located at the posterior end of the iliac crest, serving as a muscle attachment point.

Signup and view all the flashcards

Ischium

The inferior and posterior bone of the pelvis, forming part of the acetabulum and providing attachment sites for various muscles.

Signup and view all the flashcards

Pubis

The anterior and inferior part of the pelvic bone, consisting of a body and two rami.

Signup and view all the flashcards

Pubic Symphysis

The joint where the two pubic bones articulate with each other.

Signup and view all the flashcards

Pubic Crest

The rounded, superior surface of the pubic body.

Signup and view all the flashcards

Pubic Tubercle

The prominent bony projection at the lateral end of the pubic crest.

Signup and view all the flashcards

Superior Pubic Ramus

The arm of the pubis that projects posterolaterally and joins with the ilium and ischium at its base.

Signup and view all the flashcards

Pecten Pubis

The sharp superior margin of the superior pubic ramus, which forms part of the linea terminalis (pelvic brim).

Signup and view all the flashcards

Ischial Tuberosity

The large, prominent feature of the ischium on its posteroinferior aspect.

Signup and view all the flashcards

Study Notes

Pelvis Anatomy

  • The pelvis is a region enclosed by pelvic bones and the lower spine.
  • It's divided into two parts: the false (greater) pelvis (part of the abdominal cavity) and the true (lesser) pelvis (containing the pelvic cavity).
  • The pelvic cavity continuous with the abdominal cavity above.
  • The pelvic inlet is completely surrounded by bone.
  • The pelvic floor separates the pelvic cavity from the perineum.
  • The perineum, situated below the pelvic floor, is bordered by the pelvic outlet.
  • It contains openings for the digestive and urinary systems, reproductive tract, and external genitalia.

Pelvic Bones

  • The pelvis's bony structure includes two pelvic bones, the sacrum, and the coccyx.
  • The sacrum connects to the fifth lumbar vertebra (L5) at the lumbosacral joint.
  • Pelvic bones connect posteriorly to the sacrum (sacroiliac joints) and anteriorly to each other (pubic symphysis).
  • Each pelvic bone is somewhat irregular and has two sections.
  • The upper section, above the oblique line, forms the lateral wall of the false pelvis.
  • The lower section, below the oblique line, forms the lateral wall of the true pelvis.
  • The linea terminalis, the lower two-thirds of the oblique line, forms part of the pelvic inlet.
  • Each pelvic bone contains the acetabulum, a socket that forms the hip joint with the femur's head.
  • Below the acetabulum is the obturator foramen, mostly covered by a membrane.
  • The obturator canal, a small opening through the membrane, connects the lower limb and pelvic cavity.
  • The posterior margin of the pelvic bone comprises the greater sciatic notch, lesser sciatic notch, and ischial tuberosity.
  • The anterior margin includes the anterior superior iliac spine, anterior inferior iliac spine, and pubic tubercle.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser