Pelvis

Question 1

3 pelvis bones

Answer 1

sacrum and 2 hips

Question 2

what does the pelvis look like

Answer 2

bowl/ basin

Question 3

what are the joints of the pelvis

Answer 3

symphysis pubis

sacroiliac joint

pelvic girdle

Question 4

the ASIS/ pubic tubercle line up in

Answer 4

coronal plane

Question 5

ASIS LINE UP IN

Answer 5

transverse plane

Question 6

acetbalulum is located

Answer 6

inferiolaterally

Question 7

functions of pelvis

Answer 7

support and protect pelvic organs
provide bony support to birth canal
provides extensive muscle attachment
support weight of head and trunk

Question 8

allows weight transfer of trunk to

Answer 8

lower limb

Question 9

standing weight goes to

Answer 9

femur

Question 10

sitting weight goes to

Answer 10

ischial tuberosity

Question 11

pelvic inlet

Answer 11

pubic crest/ pectineal lines/ acurate line/ sacral alar/ promontory

superior
the greater pelvis is superior to this

Question 12

pelvic outlet

Answer 12

apex of the coccyx ischial tuberosity pubic symphysis
lesser pelivis is superior to this but inferior to inlet

Question 13

female vs male pelvis

Answer 13

inlet is more round in female
ischial spines further apart in female
sacral prominance greater in males
sub pubic angle is more broad in females
wings of illium are wider in females

Question 14

pubis sympysis

Answer 14

secondary
cartilegenious

b/w the syphmyseal surfaces
fibrocartledge disc
limited movement except in pregenancy the fibres softern due to relaxation hormone

Question 15

sacroilliac joint anterior

Answer 15

anterior- synovial plane non axial

aricular area of illium
aricular surface of the sacrum

Question 16

sacroilliac joiint posterior

Answer 16

posterior- fibrous joint
due to large amount of interosseius ligament

tuberosity - illiac and sacral

Question 17

the sacroiliac joint surfaces in posterior

Answer 17

ridges complementry and ridges peaks and trooughs are complementry to each pther will interlock and stabilise the joint

Question 18

sacroilliac ligament is found

Answer 18

anterior and posterior

posterior is long/ short fibres

Question 19

illliolumbar ligament

Answer 19

illiac crest to the transverse proccess of verterbra

Question 20

interoseus ligament

Answer 20

syndemossi- posterior aspect
inside joint will be anterior to posterior aspect

Question 21

what form the sciatic foramen

Answer 21

sacrotuberious

sacrospinus

Question 22

sacrotuberous ligament

Answer 22

lateral and large ligament

sacrum to ischial tuberosity

Question 23

sacrospinus

Answer 23

deeep to sacrotuberous

Question 24

sacroiliac joint features

Answer 24

60 percent of body weight
able to self lock
stable for weight transfer

sacrum is wedged inferior direction

Question 25

when sacrum is wedged inferior what occurs

Answer 25

the sacroilliac joint interlocks

interosseius ligament becomes under tension

iliac bones pull towards sacrum to increase stability

Question 26

sacroilliac joint moves due to

Answer 26

force not muscle contraction

Question 27

nutration

Answer 27

anterior rotation of the superior sacrum

Question 28

counternutration

Answer 28

anterior rotation of inferior sacrum

Question 29

nutration resisted by

Answer 29

sacrotuberous

sacrospinus

under tension

Question 30

counternutration resisted by

Answer 30

posterior sacroilliac ligament

oppose supporter by multifidus

Question 31

form closeure

Answer 31

passive structures that interlock surface- ridges and grooves
stability of joint b/c surface allign relate to gravity
tension in restraint ligaments

Question 32

force closure

Answer 32

active structures
fascia/ connective tissue/ muscles

cross the pelvic joint

e.g myofascia slings

Question 33

myofascia slings

Answer 33

cross joints
posterioisty
posterior
anterior

enahance compression of the joint surface assist in joint stability

Question 34

sacrum

Answer 34

wedged inferior
irregular joint interlock

Question 35

ligaments under tension mean sacrum

Answer 35

is stopped sliding inferiorly

Question 36

ligaments attached to sacrum means ilia

Answer 36

held tightly

Question 37

when does nutration occur

Answer 37

when sacrum absorb shock
as superior sacrum moves anterior
inferior coccyx will move posterior

motion is opposed by wedge/ irregular bone shape

integrity os posterior ligaments supported by muscles insert into ligaments

Question 38

pelvis lift the lesser trochanter

Answer 38

gets closer to the ischial tuberoisty

Question 39

pelvis drop the lesser trochanter

Answer 39

gets further from the ischial tuberosity

Question 40

pelvic drop produced by muscles

Answer 40

concentric= ipsilateral glut med/ contrlateral EO/IO contralateral hip adductors

eccentric= contralateral glut med// ipsilateral hip adductors and EO/ IO

Question 41

PELVIC LIFT PRODUCED BY MUSCLES

Answer 41

concentric-contralateral glut med// ipsilateral hip adductors and EO/ IO

ecentric- ipsilateral glut med/ contrlateral EO/IO contralateral hip adductors

Question 42

pelvic tilt produced posterior

Answer 42

concentric- hip extnesor/ abdominals

eccentric- erecotor spinae/ hip flexors

Question 43

pelvic tilt produced anterior

Answer 43

hip extnesor/ abdominals - eccentric

erecotor spinae/ hip flexors- concentric

Question 44

pelvic rotation to the right produced

Answer 44

left I/O and right EO
left hip external rotators
right hip medial rotation

Question 45

pelvic rotation to left produced

Answer 45

right I/O left E/O
right hip external rotators
left hip medial rotators