Pelvis and Perineum

Question 1

What is the line of demarcation on the anterior and posterior surface for the transition from the trunk to the lower extremity

Answer 1

Anterior=Inguinal ligament

Posterior=Gluteal region

Question 2

The greater pelvis protects the…

Answer 2

Abdominal viscera

Question 3

Greater pelvic contents are _____, while lesser pelvic contents are…

Answer 3

Greater=abdominal

Lesser=pelvic

Question 4

What bones make up the superior pelvic girdle?

Answer 4

• Ala of the ilia

- Base of the sacrum

Question 5

The majority of these 2 bones make up the lesser pelvis (true pelvis)

Answer 5

-Pubic and ischeal bones

Question 6

This compartment includes the surface of the trunk between the thighs and the butt

• extends from coccyx to butt
• includes the shallow surface lying deep to this area

Answer 6

Perineum

Question 7

What seperates the lesser pelvis from the perineum?

Answer 7

Pelvic diaphragm

Question 8

What is the cartilage between the 3 bones of the os coxa called?

Answer 8

Triradiate cartilage

Question 9

What bones contribute to the formation of the acetabulum?

Answer 9

• Ilium
• Ischium
• Pubis

Question 10

What are the 2 joints of the sacrum?

Answer 10

Anterior and posterior sacroiliac joints

Question 11

Anterior sacroiliac joint=

Answer 11

Synovial joint

Question 12

Posterior sacroiliac joint=

Answer 12

Syndesmosis

Question 13

What do the synovial joints contain?

Answer 13

• Hyaline cartilage
• Synovial membrane
• Fluid and capsule
• Interlocking parts
• Auricular surfaces

Question 14

T/F- There is very little mobility in the sacroiliac synovial joints

Answer 14

True

Question 15

What are the 4 ligaments of the sacrum and os coxa?

Answer 15

• Iliolumbar
• Sacroiliac
• Sacrotuberous
• Sacrospinous

Question 16

Where does the sacrotuberous ligament run?

Answer 16

• Posterior ilium
• Lateral sacrum
• Ischeal tuberosity

Question 17

Where does the sacrospinous ligament run?

Answer 17

• Lateral sacrum and coccyx

- Ischeal spine

Question 18

Greater sciatic foramen is for things leaving the ______

Answer 18

Pelvis

Question 19

Lesser sciatic foramen is for things leaving the _____

Answer 19

Perineum

Question 20

The ASIS is in the same verticle plane as the _____

Answer 20

Pubic Symphysis

Question 21

The pubic Symphysis and the ______ are in the same horizontal plane

Answer 21

Ischeal spine

Question 22

What are the 2 adjectives to describe the female pelvis

Answer 22

• Wide True Pelvis

- Shallow False Pelvis

Question 23

This is the fixed distance between the sacral promontory and the pubic symphysis

Answer 23

Obstetrical conjugate

Question 24

What are the apertures of the lesser pelvis?

Answer 24

• Pelvic inlet
• Pelvic outlet
• Obturator foramina

Question 25

Anterior border of the true pelvis

-what does it bear the weight of?

Answer 25

• Pubic Symphysis
• Sup/Inf rami of the pubic bones

-Bears the weight of the bladder

Question 26

Lateral border of the true pelvis

Answer 26

• Hip bones
• Obturator foramina and obturator membrane and obturator internist muscle
• Tendonous arch (thickened fascia)

Question 27

Posterior border of the true pelvis

Answer 27

• Sacrum
• Coccyx
• Piriformis
• Ilium

Question 28

This is the floor of the pelvis

Answer 28

Pelvic diaphragm

Question 29

What is the role of the pelvic diaphragm?

Answer 29

• Supports abdominopelvic viscera
• Resists increases in intraabdominal pressure
• Relaxes to allow urination and defecation