PELVIC ANATOMY Flashcards
List the bones which form the “bony pelvis”
- 2 innominate bones (fusion between ilium, ischium and pubis)
- Sacrum
- Coccyx
Where does the iliac crest span from?
from PSIS to ASIS
What part of the pelvis do you sit on?
ischial tuberosity
Where does the inguinal ligament attach?
between the ASIS and pubic tubercle
Name the 5 joints of the pelvis
2 x sacroiliac
2 x hip joint
1 x pubic symphysis (secondary cartilaginous)
How can you palpate the ischial spines?
During vaginal examination, at about a finer breadth into the vagina (approx 4 and 8 o clock positions)
Where does the sacrospinous ligament attach ?
to the sacrum and ischial spine
Where does the sacrotuberous ligament attach?
to the sacrum and ischial tuberosity
Does the pelvic girdle include the coccyx?
no
What is the purpose of the sacrotuberous and sacrospinous ligaments?
ensure the inferior part of the sacrum is not pushed superiorly when weight is suddenly transferred vertically through the vertebral column (e.g. when jumping or during late pregnancy)
What happens to the sacrotuberous and sacrospinous ligaments during later pregnancy?
they relax
Which foraminae are formed by the sacrotuberous and sacrospinous ligaments?
the greater and lesser sciatic
Which bones form the pelvic inlet?
Sacral promontory
Ilium
Superior pubic ramus
Pubic symphysis
Which bones form the pelvic outlet?
Pubic symphysis Ischiopubic ramus Ischial tuberosities Sacrotuberous ligaments Coccyx
What are the borders of the pelvic cavity?
pelvic inlet and pelvic floor
