Anatomy of the Pelvis Flashcards Preview

Reproduction > Anatomy of the Pelvis > Flashcards

Flashcards in Anatomy of the Pelvis Deck (20)
1

what is the bony pelvis

hip bones
sacrum
coccyx

2

what makes up each hip bone

ilium
ischium
pubis

3

what attaches to the pubic tubercle

inguinal ligment

4

what are the main joints of the pelvis

sacroiliac
hip
pubic symphysis

5

where are the ischial spines palpable of vaginal examination

a finger breadth into vagina at 4 oclock and 8 oclock positions

6

what two main ligament do we need to know in the pelvis

sacrotuberous
sacroillliac

7

what foraminae are formed by the ligaments of the pelvis

greater sciatic foramen
lesser sciatic foramen

8

what is the purpose of the ligaments of the pelvis

ensure the inferior part of the sacrum is not pushed superiorly when weight is suddenly transferred vertically through the vertebral column ie when jumping or in late pregnancy

9

what makes up the pelvic inlet

sacral promontory
illum
superior pubic ramus
pubic symphysis

10

what makes up the pelvic outlet

pupic symphysis
ischiopubic ramus
ischial tuberosities
sacrotuberous liagmants
coccyx

11

where does the pelvic cavity lie

between the pelvic inlet and the pelvic floor

12

what are the differences between a male and female pelvis

male pelvic inlet is narrower than female
male is more heart shaped but female ismore circular and wider.
the male pelvis is more tall and narrow while the female pelvis is more broad and flattened.
the angle beneath the ischia bones (the pubic arch) forms a much more acute angle in the male (90 degrees), and the pubic arch is higher in the male.
the obturator foramen in the male are round, whereas in the female they are oval

13

what is moulding

the movement of one bone over another to allow the foetal head to pass through the pelvis during labour

14

In which direction is the fetal skull longer

occipitofrontal diameter is longer than biparietal

15

what is the foetus's station

the distance of the foetal head from the ischial spines - a negative number means the head is superior to the spines, a positve number means it is below

16

which diameter is wider in the pelvic inlet

transverse

17

which diameter is wider in the pelvic outlet

AP diameter

18

in what position should the baby leave the pelvic cavity

occipitoanterior (OA)

19

what does the foetus do as it is descends through the pelvic cavity

rotates
flexed position

20

what position should the baby's head be when delivered

extension
OA