The Maternal Pelvis Flashcards
the four bones of the pelvis:
2 x innominate bones
the sacrum
the coccyx
the three bones that make up innominate bones:
the ilium
the ischium
the pubis
the four pelvic joints
symphysis pubis joint
2 x sacroiliac joints
sacrococcygeal joint
the sacrum forms which wall of the pelvic cavity?
the posterior
is wedged between the innominate bones
the sacrum consists of how many fused vertebrate?
five
the coccyx (vestigial tail) consists of how many fused vertebrate?
four
pelvic joints are held together by…
ligaments
these are designed not to allow movement
the ligaments connecting the bones of the pelvis with each other can be divided into four groups.
what are those connecting the sacrum and ilium called?
the sacroiliac ligaments
the ligaments connecting the bones of the pelvis with each other can be divided into four groups.
what are those connecting the sacrum and ischium called?
sacrospinous ligaments
the ligaments connecting the bones of the pelvis with each other can be divided into four groups.
what are those connecting the sacrum and the coccyx called?
the sacrococcygeal ligaments
the ligaments connecting the bones of the pelvis with each other can be divided into four groups.
what are those connecting the two pubic bones called?
the inter-pubic ligaments
effect of the hormone relaxin during pregnancy:
gradually loosens pelvic ligaments allowing slight pelvic movement and more room for fetal head
the true pelvis is divided into three sections:
the pelvic brim
pelvic cavity
pelvic outlet
the sacrum is located between which bones?
innominate bones
the coccyx is also known as the what?
the tailbone
