The Coccyx Quiz

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Questions and Answers

What is the coccyx?

  • A separate set of vertebrae
  • A vestigial tail (correct)
  • A flexible bone structure
  • A fully functional tail

What shape does the coccyx form?

  • A small triangular bone (correct)
  • An irregular and asymmetrical bone
  • A large circular structure
  • A long and narrow bone

How many vertebrae form the coccyx?

  • Five fused vertebrae
  • Four fused vertebrae (correct)
  • Three separate vertebrae
  • Two flexible vertebrae

Which joint connects the sacrum to the ilium?

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

What is the function of the pelvic floor muscles?

<p>Supporting the weight of the abdominal and pelvic organs (C)</p> Signup and view all the answers

Which ligament runs from the sacrum to the ischial tuberosity?

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

What is the symphysis pubis formed by?

<p>Pad of cartilage (A)</p> Signup and view all the answers

What is the function of the sacrococcygeal joint?

<p>Articulating with the tip of the sacrum (B)</p> Signup and view all the answers

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Study Notes

Pelvic Structure

  • The coccyx is the tailbone, located at the bottom of the spine.
  • The coccyx forms a triangular shape.

Vertebral Composition

  • The coccyx is formed by 3-5 fused vertebrae.

Sacroiliac Joint

  • The sacrum connects to the ilium through the sacroiliac joint.

Pelvic Floor Muscles

  • The pelvic floor muscles have a crucial function in supporting the pelvic organs.

Ligaments

  • The sacrotuberous ligament runs from the sacrum to the ischial tuberosity.

Symphysis Pubis

  • The symphysis pubis is formed by the fusion of the two pubic bones.

Sacrococcygeal Joint

  • The sacrococcygeal joint, located between the sacrum and the coccyx, allows for a slight degree of movement.

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