Level 2 - Pelvis

Question 1

What is the pelvic girdle composed of?

Answer 1

-sacrum
-two coxal bones
-bound tightly by ligaments

Question 2

What are the 3 bones that fuse together to form each coxal (innominate) bone?

Answer 2

-ilium (largest and upper most)
-ischium (strongest and lowermost)
-pubis (most anterior)

Question 3

Where does the bladder sit?

Answer 3

Right behind the symphysis pubis

Question 4

Irregular shaped bones in which the head of the femur articulates with the acetabulum

Answer 4

Innominate hip bone (coxal)

Question 5

-Most superior part of the innominate bone

Answer 5

Ilium

Question 6

Wide flattened plate of the ilium with long curved superior border

Answer 6

Iliac crest

Question 7

What muscles attach to the external surface of the ilium?

Answer 7

Gluteal muscles

Question 8

What vertebral level will the highest part of the iliac crest be?

Answer 8

Around level L4

Question 9

Where does the curve of the iliac crest end?

Answer 9

Anteriorly
ASIS
anterior superior iliac spine

Question 10

T/F
The anterior border of the ilium continues to the AIIS, anterior inferior iliac spine

Answer 10

True
(Lies just superior to acetabulum)

Question 11

What are the names for the coxal bone?

Answer 11

-coxal
-innominate
-pelvic

Question 12

Where does the crest of the ilium curve to posteriorly?

Answer 12

PSIS
posterior superior iliac spine

Question 13

What lies below the PSIS?

Answer 13

PIIS
posterior inferior iliac spine

Question 14

Where is the greater sciatic notch situated?

Answer 14

Below the PIIS

*triangular notch

Question 15

What is on the internal surface of the innominate bone?

Answer 15

Iliac fossa
*large shallow concave surface

Question 16

Where do the ilium and pubis meet?

Answer 16

Iliopectineal (iliopubic) eminence

Question 17

T/F
The medial border runs obliquely down across the ilium bone to the iliopectineal eminence

Answer 17

True

Question 18

Border between true and false pelvis

Answer 18

Arcuate line

Question 19

Where on the ilium is the articulating surface for the sacrum?

Answer 19

Just superior to the sciatic notch

Question 20

Forms the inferior and posterior parts of the innominate bones

Answer 20

Ishium

Question 21

What two sections is the ishium split into?

Answer 21

Body and ramus

Question 22

Upper portion of ischium, forms the greater sciatic notch and has the ischial spine, then below the ischial spine is the lesser sciatic notch

Answer 22

Body of ischium

Question 23

Where is the ischial tuberosity located?

Answer 23

On the body of the ischium

Question 24

Lower curved portion of the ischium that joins with the inferior portion on the pubis

Answer 24

Ramus of ischium

Question 25

Where is the obturator foramen situated?

Answer 25

Inferior to the acetabulum

Question 26

What is the obturator foramen enclosed by?

Answer 26

Body of ischium, ischial ramus, superior and inferior rami of the pubis

Question 27

T/F The greater sciatic notch is made up of both ilium and ischium

Answer 27

True

Question 28

Forms the anterior part of the innominate bone

Answer 28

Pubis

Question 29

What is it called where the two pubis from each side join?

Answer 29

Symphysis pubis

Question 30

What are the 3 parts of the pubis?

Answer 30

Body, superior ramus, inferior ramus

Question 31

What part of the pubis is flat, extends to opposing body and is joined by cartilaginous disk at the symphysis

Answer 31

Body

Question 32

What part of the pubic body has a rounded upper border that projects forward?

Answer 32

Pubic crest

Question 33

T/F The pubic tubercle is located on the external surface of body of the pubis, and is an attachment for a ligament

Answer 33

True

Question 34

Part of the pubis that extends laterally and slightly up to join the ilium and ischium at the acetabulum

Answer 34

Superior ramus

Question 35

Part of pubis that passes back, down, and laterally to join the ramus of the ishium

Answer 35

Inferior ramus

Question 36

A hemispherical cavity on the lateral surface of the coxal or innominate bone

Answer 36

Acetabulum

Question 37

What 3 parts contribute to the acetabulum?

Answer 37

Ilium, ischium, pubis

Question 38

Which way is the acetabulum directed?

Answer 38

Laterally, down, forward

Question 39

T/F The acetabulum is surrounded by a prominent bony rim which is deficient inferiorly (acetabular notch) and enhanced by a cartilaginous rim (to deepen socket)

Answer 39

True

Question 40

If hip is dislocated, which direction will it most likely go?

Answer 40

Inferior Because of acetabular notch

Question 41

T/F The middle part of the acetabulum is not covered in cartilage

Answer 41

True (Fovea of femur articulates)

Question 42

What causes the hip joint to be very stable?

Answer 42

-The shape of the head of the femur, and the acetabulum -joint capsule and ligaments contribute to the joints stability

Question 43

What movements do the hip joint (synovial, ball and socket) allow for?

Answer 43

Flexion, extension, abduction, adduction, rotation, circumduction

Question 44

What are the articular surfaces of the hip joint?

Answer 44

Head of femur, acetabulum of innominate bone

Question 45

What type of joint is the symphysis pubis?

Answer 45

Amphiarthroses, cartilaginous symphysis Articular surfaces: pubic bodies and articular disc Movements: slight movement (minimal) with pressure

Question 46

What type of joints are the sacroiliac joints?

Answer 46

Synovial plane (gliding) Articular surfaces: surfaces of ilium and sacrum Movement: small rotational, gliding movement

Question 47

What is the appearance of the sacroiliac joints?

Answer 47

Bony and rough Ilium and sacrum surfaces are not smooth

Question 48

What two parts is the pelvis divided into?

Answer 48

Greater pelvis (false pelvis) Lesser pelvis (true pelvis)

Question 49

It is above the pelvic brim and is part of the abdomen

Answer 49

Greater pelvis / false pelvis

Question 50

It is below the pelvic brim. Smaller in size. Contains the reproductive organs, urinary bladder, pelvic colon and rectum

Answer 50

Lesser pelvis / true pelvis

Question 51

What divides the greater pelvis from the lesser pelvis?

Answer 51

Iliopectineal line

Question 52

Sacral promontory, anterior border of ala of the sacrum, iliopectineal line of the ilium and ischium, pubic crests and the superior border of the symphysis pubis

Answer 52

Pelvic inlet - boundaries

Question 53

A canal from the pelvic inlet to the outlet. Deeper posteriorly. Contains pelvic organs. Boundaries : anterior pubic bones, posterior sacrum and coccyx, lateral ilium and ischium

Answer 53

Pelvic cavity

Question 54

Indented by ischial tuberosities, ischial spines and the sacrum and coccyx. Boundaries : apex of sacrum, ischial tuberosities, ischial rami, inferior pubic rami and inferior border of symphysis pubis

Answer 54

Pelvic outlet

Question 55

Deep and funnel shaped with narrow pubic arch

Answer 55

Male pelvis

Question 56

Shallow, broad, and flaring with a wider pubic arch

Answer 56

Female pelvis

Question 57

-bones are larger and stronger -false pelvis is narrower -inlet of true pelvis is narrower and triangular -ischial spines are closer together, therefore narrower outlet -pubic arch is narrower (pubic angle)

Answer 57

Male pelvis