Pelvic Girdle Flashcards
How many bones is the pelvic girdle composed of?
3 bones - 2 innominates and sacrum
What does the pelvic girdle form a link between?
Upper and lower body
Is the pelvis sexually dimorphic?
Yes
Name the 3 individual bones of the innominates (which are fused in adulthood)?
Ilium
Ishium
Pubis
Name the 2 pelvis’s and where they are located
Greater (false) pelvis is above the inlet
Lesser (true) pelvis is below the inlet
What notch is located on the ilium?
Greater sciatic notch (on the posterior medial side)
What is the auricular surface of the ilium?
It is where the sacrum articulates
How many iliac spines are there?
4
Name the iliac spines
Anterior Superior
Anterior Inferior
Posterior Superior
Posterior Inferior
Name the fossa found on the ilium
Iliac fossa
What lies between the pubis and ilium?
Iliopubic eminence
What line connects with the arcuate line?
Iliopectineal line
Name the 2 pubic rami
Superior pubic ramus
Inferior pubic ramus
Name the 4 other pubic landmarks
Pubic symphysis
Pubic tubercle
Pubic crest
Pectineal line
Where is the ischial spine located?
Posteriorly
What notch is located at the ishium?
Lesser sciatic notch (on the posterior medial side)
Name the 2 other ischial landmarks
Ramus (inferior ramus) Ischial tuberosity (lesser sciatic notch runs to here)
Name the features created by all three bones - ilium, ischium and pubis
Obturator foramen Obturator canal Acetabulum Acetabular notch Pelvic inlet
What lines separate the gluteal muscles?
Gluteal lines
Where does gluteus minimus sit in relation to the gluteal lines?
Between the anterior and inferior gluteal lines
Where does gluteus medius sit in relation to the gluteal lines?
Between anterior and posterior gluteal lines
Where does gluteus maximus sit in relation to gluteal lines?
Behind posterior gluteal line
What movements do the gluteal muscles produce?
Extension and rotation of hip