Anatomy Flashcards
what bones make up the pelvis inlet
sacral promontory
ilium
superior pubic ramus
pubic symphysis
what bones make up the pelvic outlet
pubic symphysis ischiopubic ramus ischial tuberosities sacrotuberous ligaments coccyx
where does the inguinal ligament attach
between ASIS and pubic tubercle
what aspects of the ischium are palpable on vaginal examination
ischial spines
what are the joints of the pelvis
sacroiliac joints
hip joints
pubic symphysis
where does sacrospinous ligament attach from
sacrum and ischial spine
where does sacrotuberous ligament attach
sacrum and ischial tuberosity
what is the function of the sacrotuberous and sacrospinous ligaments
to ensure the inferior part of the sacrum is not pushed superiorly when weight is suddenly transferred vertically through the vertebral column eg when jumping or during late pregnancy
what does the presence of the sacrotuberous and sacrospinous ligaments form
the greater and lesser sciatic foraminae
what passes through the obturator canal
obturator nerve and vessels
what is moulding
the movement of one bone over another to allow the foetal head to pass through the pelvis during labour
what is the vertex
an area of the foetal skull outlined by the anterior and posterior fontanelles and the parietal eminences
what is longer the occiptofrontal or biparietal diameter
the occipitofrontal ie the foetal head is longer than it is wide
which is wider the transverse or AP diameter in the pelvic inlet
the transverse diameter is wider than AP diameter
what direction should the fetus enter the pelvic cavity
facing the right or left
in the transverse direction
