Osteology of the Pelvis and Gluteal Region

Question 1

Central nonarticular portion of the acetabulum known as

Answer 1

Acetabular fossa

Question 2

Articular portion of the acetabulum known as

Answer 2

Lunate surface

Question 3

Body and wing of ilium separated externally by

Answer 3

margin of the acetabulum

Question 4

Body and wing of ilium separated internally by

Answer 4

Arcuate line

Question 5

External ilial lines in order from top to bottom

Answer 5

Posterior
Anterior
Inferior

Question 6

Muscle taking origin from posterior gluteal line

Answer 6

Gluteus maximus

Question 7

Muscle taking attachment between the anterior and inferior gluteal lines

Answer 7

Gluteus minimus

Question 8

Muscle taking attachment between the posterior and anterior gluteal lines

Answer 8

Gluteus medius

Question 9

Muscle taking partial origin between the inferior gluteal line and acetabulum

Answer 9

Rectus femoris

Question 10

Muscle located in the iliac fossa

Answer 10

Iliacus

Question 11

Ligaments attaching to the iliac tuberosity

Answer 11

Sacroiliac ligaments

Question 12

Structures attached to the external lip of the iliac crest

Answer 12

Fascia lata

Tensor fasciae latae

Question 13

Structures attached to the internal lip of the iliac crest

Answer 13

Iliacus

Iliac fascia

Question 14

Most inferior portion of the hip bone

Answer 14

Ischium

Question 15

Muscle attached to the internal portion of the ischium

Answer 15

Obturator internus

Question 16

Structures attached to the ischial spine

Answer 16

Sacrospinalis ligament

Superior gemellus muscle

Question 17

Muscles attached above the oblique line of the ischial tuberosity

Answer 17

Semimembranosus

Question 18

Muscles attached below the oblique line of the ischial tuberosity

Answer 18

Long head of biceps femoris

Semitendinosus

Question 19

Structures attached to the triangular portion of the ischial tuberosty

Answer 19

Sacrotuberous ligament

Adductor magnus

Question 20

Muscle attached to lateral edge of ischial tuberosty

Answer 20

Quadratus femoris

Question 21

Muscle attached to the superomedial aspect of the ischial tuberosity

Answer 21

Inferior gemellus

Question 22

Muscles taking origin from the external part of the ischial ramus

Answer 22

Adductor magnus

Obturator externus

Question 23

Muscle taking partial origin from the internal surface of the ischial ramus

Answer 23

Obturator internus

Question 24

Muscles attached to the body of the pubis

Answer 24

Gracilis
Adductor longus
Adductor brevis

Question 25

Attachment site of the inguinal ligament

Answer 25

Pubic tubercle

Question 26

Pecten pubis

Answer 26

Feature of the medial portion of the superior pubic ramus lying lateral to the pubic tubercle

Question 27

Muscle taking origin from the pecten pubis

Answer 27

Pectineus

Question 28

Muscles taking origin from the inferior pubic ramus

Answer 28

Gracilis Adductor brevis Adductor magnus Obturator externus

Question 29

Primary ossification center of the ilium appears

Answer 29

8th week in utero

Question 30

Pubis and ichium develep primary centers of ossification

Answer 30

4-5 months (in utero)

Question 31

Pelvic ossification centers fuses at acetabulum at

Answer 31

13-14 years

Question 32

Piriformis takes origin from

Answer 32

First through fourth sacral segments

Question 33

Muscle taking partial origin from the superolateral portion of the sacrum

Answer 33

Iliacus

Question 34

The __________ surface of the sacrum articulates with the ___________

Answer 34

Auricular | Ilium

Question 35

Structures attaching to the lower lateral surface of the sacrum

Answer 35

Gluteus maximus Sacrospinous ligament Sacrotuberous ligament

Question 36

Muscle attached to the alae (wings) of the sacrum

Answer 36

Psoas major

Question 37

Lateral borders of the coccyx serve as attachment sites for

Answer 37

Gluteus maximus Sacrospinous ligament Sacrotuberous ligament

Question 38

Coccygeal vertebrae order of ossification site appearance

Answer 38

First - 1-4 years Second - 5-10 years Third - 10-15 years Fourth - 15-20 years