Bones and bony landmarks of the pelvis Flashcards
What 3 bones make up the pelvic girdle?
Sacrum
Coccyx
Innominate/hip/pelvic/coxal bone
Which bone is the sacrum?
1
Which bone is the coccyx?
2
Which bones are the hip/pelvic/innominate/coxal bones?
3
What shape is the sacrum, and how is it formed?
Sacrum is a triangular bone that is formed by fusion of the 5 sacral vertebrae
How does the sacrum connect to the rest of the vertebral column?
It articulates with the last lumbar vertebral segment L5
Where is the coccyx in relation to the sacrum?
The coccyx is positioned inferiorly to (below) sacrum
What shape is the coccyx, and where is it positioned in the vertebral column?
Small, triangular bone that is the terminal end of the vertebral column
What 3 bones fuse to form the hip bones?
Ilium
Ischium
Pubis
Which bone is the ilium, and describe its location relative to the other hip bones and in the hip bone overall?
1, ilium is superior to ischium and pubis
Located superiorly in hip bone
Which bone is the ischium, and describe its location relative to the other hip bones?
2, ischium is inferior to ilium and posterior to pubis
Located posteroinferiorly in hip bone
Which bone is the pubis, and describe its location relative to the other hip bones?
3, pubis is inferior to ilium and anterior to ischium
Located anteroinferiorly in hip bone
What structure separates the 3 hip bones, and what is the function of this structure?
Triradiate cartilage, the Y-shaped epiphyseal plate that develops into acetabulum
Where is the sacroiliac joint in the hip bone, and how many are there overall in the pelvic girdle?
1, there are 2 sacroiliac joints overall in the pelvic girdle
Where is the sacrococcygeal joint in the hip bone, and how many are there overall in the pelvic girdle?
3, there is one sacrococcygeal joint overall in the pelvic girdle