Anatomy
4.b) Pelvis
Compiled By Muchiri Simon
Edition: 2024/25
, Medical & Nursing | Anatomy I of IV pages
1. What type of joint in the sacroiliac joint?
Synovial joint
2. What type of joint is the pubic symphysis?
Secondary cartilaginous joint
3. What is the name of the surface that articulates with the head of the femur?
Acetabular fossa
4. What is considered the true pelvis?
Within the pelvic inlet.
5. What constitutes the pelvic wall?
SacrumCoccyxPelvic bones
6. What are the 2 main ligaments in the true pelvis?
Sacrospinous (sacrum to the ischial spine)
Sacrotuberous (sacrum to the ischial tuberosity)
7. Describe the orientation of the pelvic cavity.
Axis of the pelvic cavity is at a 45 degree angle to the axis of the abdominal cavityAntero-inferiorly inclined
8. Shape of pelvic cavity
Conical/ cylindrical
9. Which muscle lines most of the pelvic bone facing the pelvic cavity?
Obturator internus
10. Where does the obturator internus insert and what other muscle inserts here?
Medial surface of the greater trochanter of the femur
Piriformis also inserts here
11. What muscle overlays the sacrospinous ligament?
Coccygeus muscle
12. What are the 3 main muscles of the pelvic floor and what are they called collectively?
Iliococcygeus musclePubococcygeus muscle Puborectalis muscle These muscles make up Levator Ani
13. What forms the border between the obturator internus and the levator ani?
Tendinous arch of obturator internus fascia
14. What other ligament is found adjacent to Levantor Ani muscle?
Anococcygeal ligament
15. What does the pelvic diaphragm consists of?
Bowl like pair of skeletal muscles (Levantor Ani)
Support pelvic organs
Anatomy 2024/25 Edition
4.b) Pelvis
Compiled By Muchiri Simon
Edition: 2024/25
, Medical & Nursing | Anatomy I of IV pages
1. What type of joint in the sacroiliac joint?
Synovial joint
2. What type of joint is the pubic symphysis?
Secondary cartilaginous joint
3. What is the name of the surface that articulates with the head of the femur?
Acetabular fossa
4. What is considered the true pelvis?
Within the pelvic inlet.
5. What constitutes the pelvic wall?
SacrumCoccyxPelvic bones
6. What are the 2 main ligaments in the true pelvis?
Sacrospinous (sacrum to the ischial spine)
Sacrotuberous (sacrum to the ischial tuberosity)
7. Describe the orientation of the pelvic cavity.
Axis of the pelvic cavity is at a 45 degree angle to the axis of the abdominal cavityAntero-inferiorly inclined
8. Shape of pelvic cavity
Conical/ cylindrical
9. Which muscle lines most of the pelvic bone facing the pelvic cavity?
Obturator internus
10. Where does the obturator internus insert and what other muscle inserts here?
Medial surface of the greater trochanter of the femur
Piriformis also inserts here
11. What muscle overlays the sacrospinous ligament?
Coccygeus muscle
12. What are the 3 main muscles of the pelvic floor and what are they called collectively?
Iliococcygeus musclePubococcygeus muscle Puborectalis muscle These muscles make up Levator Ani
13. What forms the border between the obturator internus and the levator ani?
Tendinous arch of obturator internus fascia
14. What other ligament is found adjacent to Levantor Ani muscle?
Anococcygeal ligament
15. What does the pelvic diaphragm consists of?
Bowl like pair of skeletal muscles (Levantor Ani)
Support pelvic organs
Anatomy 2024/25 Edition
