The pelvic girdle

Question 1

what is the pelvic girdle? location?

Answer 1

a ring-like structure, located in the lower part of the trunk

Question 2

what does the pelvic girdle connect?

Answer 2

connects the axial skeleton to the lower limbs

Question 3

what does the pelvis consist of?

Answer 3

2 hip bones: sacrum and coccyx

Question 4

what are the articulations within the pelvis?

Answer 4

Sacroiliac Joints (x2)
Sacrococcygeal symphysis
Pubic symphysis

Question 5

what do the 2 sacroiliac joints connect?

Answer 5

Between the ilium of the hip bones, and the sacrum

Question 6

what does the sacrococcygeal symphysis connect?

Answer 6

Between the sacrum and the coccyx

Question 7

where is the pubic symphysis?

Answer 7

Between the pubis bodies of the two hip bones

Question 8

where do ligaments attach in the pelvis?

Answer 8

Ligaments attach the lateral border of the sacrum to various bony landmarks on the bony pelvis

Question 9

function of ligaments within the pelvis?

Answer 9

aid stability

Question 10

main functions of the pelvis?

Answer 10

Transfer of weight
Provides attachment
Contains and protects

Question 11

what does the pelvis transfer weight from and to?

Answer 11

from the upper axial skeleton to the lower appendicular components of the skeleton, especially during movement

Question 12

what does the pelvis provide attachment for?

Answer 12

for a number of muscles and ligaments used in locomotion

Question 13

what does the pelvis contain and protect?

Answer 13

the abdominopelvic and pelvic visera

Question 14

how can the osteology of the pelvic girdle be divided?

Answer 14

into 2:
superior portion = greater pelvis (false pelvis)
inferior portion = lesser pelvis (true pelvis)

Question 15

function of greater (false) pelvis?

Answer 15

It provides support for the lower abdominal viscera (ileum and sigmoid colon), and has no obstetric relevance

Question 16

what is contained within the lesser (true) pelvis?

Answer 16

Within this reside the pelvic cavity and pelvic viscera

Question 17

what is the pelvic inlet?

Answer 17

The junction between the greater and lesser pelvis

Question 18

what is the pelvic brim?

Answer 18

The outer bony edges of the pelvic inlet

Question 19

what determines the size of the pelvic inlet?

Answer 19

the pelvic brim (edges)

Question 20

posterior border of pelvic inlet?

Answer 20

The sacral promontory (the superior portion of the sacrum)

Question 21

lateral border of pelvic inlet?

Answer 21

The arcuate line on the inner surface of the ilium, and the pectineal line on the superior ramus

Question 22

anterior border of pelvic inlet?

Answer 22

The pubic symphysis

Question 23

what does the pelvic inlet determine?

Answer 23

determines the size and shape of the birth canal

Question 24

function of prominent ridges of pelvic inlet?

Answer 24

key areas of muscle and ligament attachment

Question 25

what is the Linea Terminalis?

Answer 25

Refers to the combined pectineal line, arcuate line and sacral promontory

Question 26

what is the Iliopectineal line?

Answer 26

Refers to the combined arcuate and pectineal lines

Question 27

where is the pelvic outlet located?

Answer 27

located at the end of the lesser pelvis, and the beginning of the pelvic wall

Question 28

posterior border of pelvic outlet?

Answer 28

The tip of the coccyx

Question 29

lateral border of pelvic outlet?

Answer 29

The ischial tuberosities and the inferior margin of the sacrotuberous ligament

Question 30

anterior border of pelvic outlet?

Answer 30

The pubic arch (the inferior border of the ischiopubic rami)

Question 31

what is the sub-pubic angle?

Answer 31

The angle beneath the pubic arch

Question 32

which gender has a larger sub-pubic angle?

Answer 32

greater size in women