Pelvic Girdle

Question 1

How many bones is the pelvic girdle composed of?

Answer 1

3 bones - 2 innominates and sacrum

Question 2

What does the pelvic girdle form a link between?

Answer 2

Upper and lower body

Question 3

Is the pelvis sexually dimorphic?

Answer 3

Yes

Question 4

Name the 3 individual bones of the innominates (which are fused in adulthood)?

Answer 4

Ilium
Ishium
Pubis

Question 5

Name the 2 pelvis’s and where they are located

Answer 5

Greater (false) pelvis is above the inlet

Lesser (true) pelvis is below the inlet

Question 6

What notch is located on the ilium?

Answer 6

Greater sciatic notch (on the posterior medial side)

Question 7

What is the auricular surface of the ilium?

Answer 7

It is where the sacrum articulates

Question 8

How many iliac spines are there?

Answer 8

4

Question 9

Name the iliac spines

Answer 9

Anterior Superior
Anterior Inferior
Posterior Superior
Posterior Inferior

Question 10

Name the fossa found on the ilium

Answer 10

Iliac fossa

Question 11

What lies between the pubis and ilium?

Answer 11

Iliopubic eminence

Question 12

What line connects with the arcuate line?

Answer 12

Iliopectineal line

Question 13

Name the 2 pubic rami

Answer 13

Superior pubic ramus

Inferior pubic ramus

Question 14

Name the 4 other pubic landmarks

Answer 14

Pubic symphysis
Pubic tubercle
Pubic crest
Pectineal line

Question 15

Where is the ischial spine located?

Answer 15

Posteriorly

Question 16

What notch is located at the ishium?

Answer 16

Lesser sciatic notch (on the posterior medial side)

Question 17

Name the 2 other ischial landmarks

Answer 17

Ramus (inferior ramus)
Ischial tuberosity (lesser sciatic notch runs to here)

Question 18

Name the features created by all three bones - ilium, ischium and pubis

Answer 18

Obturator foramen
Obturator canal
Acetabulum
Acetabular notch
Pelvic inlet

Question 19

What lines separate the gluteal muscles?

Answer 19

Gluteal lines

Question 20

Where does gluteus minimus sit in relation to the gluteal lines?

Answer 20

Between the anterior and inferior gluteal lines

Question 21

Where does gluteus medius sit in relation to the gluteal lines?

Answer 21

Between anterior and posterior gluteal lines

Question 22

Where does gluteus maximus sit in relation to gluteal lines?

Answer 22

Behind posterior gluteal line

Question 23

What movements do the gluteal muscles produce?

Answer 23

Extension and rotation of hip

Question 24

What ligament attaches to the anterior superior iliac spine?

Answer 24

Inguinal ligament - it runs to pubic tubercle of pubis

Question 25

Describe the origin and insertion of sartorius

Answer 25

Origin: anterior superior iliac spine Insertion: upper medial tibia

Question 26

Describe the movements of sartoris

Answer 26

flexion, lateral rotation and abduction of thigh at hip joint

Question 27

Describe the origin and insertion of tensor fasciae latae

Answer 27

Origin: anterior superior iliac spine Insertion: tibia via iliotibial tract

Question 28

Describe the movements of tensor fasciae latae

Answer 28

flexion, abduction and rotation of thigh

Question 29

Describe the origin and insertion of iliotibial tract

Answer 29

Origin: anterior superior iliac spine and iliac tubercle Insertion: lateral condyle of tibia

Question 30

Describe the movements of iliotibial tract

Answer 30

extension, abduction, lateral rotation of hip and stabilises the knee

Question 31

Describe the origin and insertion of rectus femoris

Answer 31

Origin: anterior inferior iliac spine (and posterior head above acetabulum) Insertion: quadriceps tendon onto base of patella and tibial tuberosity via patellar ligament

Question 32

Describe the movements of rectus femoris

Answer 32

extension of leg at knee joint and flexion of thigh at hip joint

Question 33

Describe the origin and insertion of iliofemoral ligament

Answer 33

Origin: anterior inferior iliac spine Insertion: intertrochanteric line of femur

Question 34

Describe the movements of iliofemoral ligament

Answer 34

maintains pelvic position and keeps femoral head in acetabulum

Question 35

Describe the origin and insertion of iliacus

Answer 35

Origin: iliac fossa Insertion: lesser trochanter of femur

Question 36

Describe the movements of iliacus

Answer 36

flexion of thigh at hip joint

Question 37

Describe the origin and insertion of ligament teres

Answer 37

Origin: acetabulum Insertion: fovea capitis of femur

Question 38

Decribe the movements of ligament teres

Answer 38

Prevents displacement of femur

Question 39

Describe the origin and insertion of transverse acetabular ligament

Answer 39

Origin: edge of acetabulum Insertion: across acetabular notch

Question 40

Describe the movements of transverse acetabular ligament

Answer 40

Prevents displacement of femur

Question 41

Describe the origin and insertion of pectineus

Answer 41

Origin: pectineal line of superior ramus of pubis Insertion: lesser trochanter and linea aspera of femur

Question 42

Describe the movements of pectineus

Answer 42

thigh flexion and adduction

Question 43

Describe the origin and insertion of adductor magnus

Answer 43

Origin: infeerior pubic ramus (ischial tuberosity) Insertion: linea aspera and adductor tubercle of femur

Question 44

Describe the movements of adductor magnus

Answer 44

thigh adduction, extension and rotation

Question 45

Describe the origin and insertion of adductor longus

Answer 45

Origin: anterior pubis Insertion: linea aspera of femur

Question 46

Describe the movements of adductor longus

Answer 46

thigh adduction, flexion and medial rotation

Question 47

Describe the origin and insertion of biceps femoris (long head)

Answer 47

Origin: ischial tuberosity Insertion: lateral head of fibula and lateral condyle of tibia

Question 48

Describe the movements of biceps femoris

Answer 48

knee flexion/rotation and hip extension

Question 49

Describe the origin and insertion of semitendinosus

Answer 49

Origin: ischial tuberosity Insertion: medial diaphysis of tibia

Question 50

Describe the movements of semitendinosus

Answer 50

knee flexion/rotation and hip extension

Question 51

Describe the origin and insertion of semimembranosus

Answer 51

Origin: ischial tuberosity Insertion: posterior medial condyle of tibia

Question 52

Describe the movements of semimembranosus

Answer 52

knee flexion/rotation and hip extension

Question 53

Describe the non-metric trait = accessory iliac/sacral facets

Answer 53

articulations between ilium and sacrum other than at the position of auricular facet

Question 54

What is the pre-auricular sulcus?

Answer 54

A non-metric trait that is a groove inferior to the caudal limb of the auricular surface

Question 55

What is the acetabular crease

Answer 55

A non-metric trait that is a groove penetraring the lunate surface from the superior margin of the acetabular notch near the trace of triradiate suture

Question 56

What disease/deformation is linked to underdeveloped acetabulum

Answer 56

congenital hip dysplasia

Question 57

What is dorsal pitting?

Answer 57

A non metric trait that shows eroded areas on the pubic body

Question 58

Can the obturator canal ossify?

Answer 58

Yes, this is a non-metric trait