Bones and Selected Bone Markings of the Pelvic Girdle

Question 1

Ilium

Answer 1

largest and most superior of the three components of the os coxa

Question 2

Iliac Crest

Answer 2

the superior border of the ilium

Question 3

Anterior Inferior Iliac Spine

Answer 3

inferior to the anterior superior iliac spine

Question 4

Posterior Superior Iliac Spine

Answer 4

posterior end of the iliac crest

Question 5

Posterior Inferior Iliac spine

Answer 5

inferior to the posterior superior iliac spine

Question 6

greater sciatic notch

Answer 6

large, posterior notch

Question 7

iliac fossa

Answer 7

depression on the anterior surface.

Question 8

ischium

Answer 8

the inferior, posterior portion of the os coxa

Question 9

ischial tuberosity

Answer 9

large, roughened projection on inferior surface; hurts after sitting on a hard surface for a prolonged period of time.

Question 10

Ischial Spine

Answer 10

posterior projection between greater and lesser sciatic notches

Question 11

lesser sciatic notch

Answer 11

the smaller indentation between the ischial spine and ischial tuberosity

Question 12

pubis

Answer 12

the anterior inferior portion of the os coxa

Question 13

pubic symphysis

Answer 13

joint where the two pubic bones join anteriorly

Question 14

acetabulum

Answer 14

deep indentation, or cup, for head of the femur; formed by fusion of ilium, pubis, and ischium

Question 15

obturator foramen

Answer 15

the largest foramen in the skeleton; formed by the fusion of pubis and ischium

Question 16

Pelvic Brim

Answer 16

divides the false pelvis from the true pelvis; begins at the sacral promontory and extends laterally and inferiorly to end at the pubic symphysis

Question 17

false pelvis

Answer 17

a portion of pelvis superior to the pelvic brim; wide-area extending to the top of the iliac crest

Question 18

True Pelvis

Answer 18

a portion of the pelvis inferior to the pelvic brim; surrounds the pelvic cavity

Question 19

pelvic inlet

Answer 19

superior opening of true pelvic; bordered by pelvic brim

Question 20

pelvic outlet

Answer 20

inferior opening of the true pelvis; bordered by the coccyx, ischial spines, and ischial tuberosities