Procedures Pelvic Anatomy Flashcards
What are the 3 bones that make up the pelvic girdle.
Rt. and Lt. hip bones
sacrum
coccyx
What 3 bones make up the hip bone
Ilium
Ischium
Pubis
AIIS/PIIS Name
Anterior/Posterior inferior iliac spine
What articulates with the sacrum to form the SI joint
Articular surface of ilium
What makes up the acetabulum and how much of each?
Ilium 2/5
ischium 2/5
pubis 1/5
Largest foramen in the body
obturator foramen
What is the pelvic brim formed by
bony structures
Pelvic brim anteriorly defined by
upper part of pubic symph
Pelvic brim posteriorly defined by
upper prominent part of sacrum
What makes up the inlet of the pelvis
DOOR FRAME
Extends from top of sacrum to superior border of symphysis
What is the outlet of the pelvis
triangle of 2 ischial tuberosities and tip of coccyx
What is the cavity of the pelvis
birth conal
area between inlet and outlet of pelvis
What is the true pelvis
located inferior to brim
completely surrounded by bone
What is the false pelvis
Area above the brim
What is true/false pelvis also known as
greater/lesser
2 other names for hip bones
innominate or os coxae
Most inferior portion of sacrum
Apex
Most superior portion of sacrum
Base
Anterior edge of body of S1
sacral promontory
forms an apophyseal joint with the inferior articular process of L5
Superior Articular Process
Where sacrum articulates with articular surface of ilum to form SI joint
Articular surface of sacrum
3 differences between male and female pelvises
- Females have broader pelvi and are more flared/shallow front to back. Men are more narrow and ilium is less flared
- Angle of women’s pubic arch is obtuse, mens is acute
- Inlet of female’s is round and larger. Mens is more oval or heart shaped
What are the 4 joints of the pelvis
SI joints
symphysis pubis
hip joints
acetabulum
