Part 1 content

Question 1

What is the innominate?

Answer 1

-either of two bones that form sides of pelvis
-formed by 3 fused bones:
ilium
ischium
pubis

Question 2

What are the bones that make up the pelvis?

Answer 2

Two inominates
sacrum
coccyx

Question 3

What is the tilt of a pelvis in anatomical position?

Answer 3

Anterior tilt, more tilt in female than male

Question 4

What are the functions of the pelvis?

Answer 4

-attaches lower limbs to axial skeleton
-transmits weight of upper body to lower limbs
-supports and protects visceral organs of the pelvis

Question 5

Differences between male and female pelves

Answer 5

Bones are thinner and lighter in female, heavier and thicker in male in order to support larger muscles.
Muscle markings are larger in males.
Female pubic arch is more rounded (80-90 degrees)
Male subpubic angle is more acute (50-60degrees)
Obturator foramen are larger and more open in females than in males
Acetabulum in females are deeper, wider apart and facing more medially. Changes angle of femoral head, results in a swinging gait
Ischial spine in males are heavier and project farther into the pelvic cavity than in females

Question 6

What are the boundaries of the pelvic outlet?

Answer 6

Anterior angle: inferior aspect of pubic symphysis
Posterior angle: sacrum and coccyx
Lateral angles: ischial tuberosities
Anterolateral sides: inferior edge of pubic ramii
Posterolateral sidesl: inferior margin of sacrotuberous ligament

Question 7

What are the boundaries of the pelvic inlet?

Answer 7

Behind:Sacral promontory
Either side: arcuate line
Front: pelvic brim

Question 8

What are the muscles crossing the hip joint?

Answer 8

gemellus superior
gemellus inferior
quadratus femoris
obturator externus
tensor fascia lata

Question 9

What are the deep gluteal muscles?

Answer 9

piriformis
gemellus inferior
gemellus superior
quadratus femoris

Question 10

sacroiliac joint
(a) articulating surfaces
(b) structural type
(c) functional type
(d) related ligaments

Answer 10

(a) sacrum and ilium (coxal bone)
(b) synovial plane joint
(c) diarthrodial (children)
amphiarthrotic (adults)
(d) Interosseous sacroiliac ligament
anterior sacroiliac ligament

Question 11

lumbosacral joint
(a) articulating surfaces
(b) structural type
(c) functional type
(d) related ligaments

Answer 11

(a) inferior aspect of vertebral
body of L5 and superior body of S1
(b) symphysis (cartilagenous)
(c) amphiarthrosis
(d) iliolumbar ligament

Question 12

symphysis pubis
(a) articulating surface
(b) structural type
(c) functional type
(d) related ligaments

Answer 12

(a) medial aspects of pubic bones
(b) symphysis (cartilagenous)
(c) amphirthrodial
(d) superior pubic ligament, inferior pubic ligament (arcuate ligament)

Question 13

sacrococcygeal joint
(a) articulating surfaces
(b) structural type
(c) functional type
(d) related ligaments

Answer 13

(a) apex of sacrum, base of coccyx
(b) symphysis (secondary cartilaginous)
(c) amphiarthrosis
(d)
* anterior
* lateral
* posterior
sacrococcygeal ligaments (paired)