Flashcards in Lecture 1 Deck (12):
What forms the bony pelvis?
Sacrum, coccyx and 2 hip bones
What forms the pelvic inlet?
Sacral promontory, ilium, superior pubic ramus, pubic symphisis
What forms the pelvic outlet?
Pubic symphysis. ischiopubic ramus, ischial tuberosities, sacrotuberous ligaments, coccyx
Pelvic cavity lies
Between pelvic inlet and pelvic floor
Anterior palpable pelvic landmarks
ASIS, iliac crests, pubic symphysis, pubic tubercle
Posterior palpable pelvic landmarks
Iliac crests, PSIS, ischial tuberosities, coccyx, sacrum
What foraminae do the sacrospinous and sacrotuberous ligaments form?
Greater and lesser sciatic foraminae
Functions of sacrotuberous and sacrospinous ligaments?
Prevent sacrum from shifting superiorly when weight is suddenly transferred vertically through vertebral column (e.g. jumping)
Obturator nerves and vessels pass through the obturator foramen via what?
The obturator canal
What is moulding in labour?
Fetal skull bones can move over one and other to allow passage of baby
What does the 'station' of the fetal head refer to?
Its position relative to the ischial spines. Negative number means superior to spines and positive means inferior.