Lectures 14-16 (pelvic bones and ligaments)

Question 1

What are the three parts of the hips bone and where do they join together?

Answer 1

ilium, pubis and ischium. Acetabulum

Question 2

What are the greater and lesser pelvis also known as and what separates them?

Answer 2

False pelvis, true pelvis. Pelvic brim/inlet

Question 3

Where is the pubic symphysis?

Answer 3

Junction of the BODIES of the two pubic bones

Question 4

What are the parts of the femur that attach to the pelvis?

Answer 4

Head and neck, greater/lesser trochanter, intertrochanteric region

Question 5

What is functional relevance of greater and lesser trochanteric regions?

Answer 5

Greater: where muscles attach that move thigh outwards
Lesser: where muscles attach that move thigh inwards

Question 6

Where is the true pelvis located?

Answer 6

Below pelvic brim

Question 7

How do you rotate the pelvis to the correct anatomical position?

Answer 7

Rotate the tip of coccyx to the same level as the pubic symphysis

Question 8

What surface consists the sacroiliac joint?

Answer 8

Auricular surface (smooth) - synovial joint with sacrum

NOT iliac tuberosity

Question 9

What is the iliac tubercle (cf iliac tuberosity)

Answer 9

thickening of central part of iliac crest

Question 10

What are the four spines?

Answer 10

AIIS, ASIS, PSIS, PIIS

Question 11

What are the internal space and external surface of the iliac bone called?

Answer 11

Iliac fossa and gluteal surface

Question 12

What is the pubic crest and where is it in relation to the pubic tubercle?

What does pubic crest transition laterally into?

Answer 12

Crest - short rounded upper part of the body of the pubis. Located medially to the pubic tubercle and laterally to the pubic symphysis

Pecten pubis

Question 13

Where is the pecten pubis and what ligament attaches here?

Answer 13

A sharp RIDGE running posteriorly from the pubic tubercle. It forms part of the sharp border of the pelvic brim.

Lacunar ligament (part of inguinal ligament)

Question 14

What does pecten pubis transition laterally into?

Answer 14

arcuate line

Question 15

What does the linea terminalis consist of?

Answer 15

pubic crest, pecten pubis, arcuate line, sacral ala, sacral promontory

Question 16

Where is the superior pubic ramus?

Answer 16

Superior to obturator foramen, joining the body of the pubis to the acetabulum

Question 17

What bump does the superior pubic ramus lead into?

Answer 17

iliopubic eminence (join between the pubis and the ilium)

Question 18

The inferior pubic ramus fuses with … to form … ?

Answer 18

inferior ischial ramus, ischiopubic ramus

Question 19

What 3 parts can the pubis be divided into?

Answer 19

Superior pubic ramus, body of the pubis and inferior pubic ramus

Question 20

Where is the ischial tuberosity located?

Answer 20

Lower posterior surface of ischium

Question 21

What are the greater and lesser sciatic notches separated by?

Answer 21

Ischial spine

Question 22

What forms boundaries of the greater sciatic notch?

Answer 22

PIIS and ischial spine

Question 23

What forms boundaries of the lesser sciatic notch?

Answer 23

ischial spine and (ischial tuberosity?)

Question 24

What is the sacrum formed by?

Answer 24

Fusion of five vertebrae

Question 25

Where are the foramina on the sacrum located?

Answer 25

anterior and posterior sides

Question 26

What is the fusion of the spines of the vertebra in the sacrum called?

Answer 26

median sacral crest

Question 27

What is the anterosuperior margin of the sacrum called?

Answer 27

sacral promontary

Question 28

The vertebral canal is continuous with a space in the sacrum called the ...

Answer 28

sacral canal

Question 29

What is the coccyx formed by?

Answer 29

Fusion of four rudimentary vertebrae

Question 30

What are the 3 joints of the pelvis?

Answer 30

sacroiliac, lumbosacral (L5 to sacrum), acetabular

Question 31

What types of joint are the sacroiliac and acetabular joints?

Answer 31

synovial joint

Question 32

What are the 5 ligaments of the pelvis?

Answer 32

interosseous, iliolumbar, sacroiliac, sacrotuberous, sacrospinous

Question 33

Where is the interosseous ligament (relative to sacroiliac joint)?

Answer 33

posterosuperior

Question 34

Where does the iliolumbar ligament connect?

Answer 34

5th lumbar vertebra to iliac crest

Question 35

Where does sacroiliac ligament connect?

Answer 35

Ventral - just inferior to iliolumbar ligament (sacrum to ilium). Looks like it is split up into two parts - one from the vertebra and one from sacrum. Remember that iliolumbar ligament attaches only to iliac crest. Dorsal

Question 36

What is more anterior - sacrospinous or sacrotuberous ligament?

Answer 36

sacrospinous

Question 37

Where does sacrotuberous ligament attach?

Answer 37

sacrum to ischial tuberosity

Question 38

Where does sacrospinous ligament connect?

Answer 38

sacrum AND coccyx to ischial spine

Question 39

Where is the superior aperture of pelvis/What is it aka? What does it consist of?

Answer 39

Aka pelvic brim/inlet. Pubic symphysis, pubic crest, arcuate line, pecten pubis, sacral promontary and ala

Question 40

What does inferior aperture of pelvis consist of/what is it aka?

Answer 40

Aka pelvic outlet. Pubic symphysis, ischiopubic ramus, ischial tuberosity, sacrotuberous ligament, coccyx

Question 41

What are the two apertures of the pelvis?

Answer 41

superior aperture of the pelvis / pelvic inlet | inferior aperture of the pelvis / pelvic outlet