Innominates Dougherty Pre-Lecture

Question 1

what joint is medial, posterior, and superior and its function

Answer 1

sacroiliac joint and transmits weight from the axial spine

Question 2

what jiont is medial anterior and inferior and its function

Answer 2

pubic symphysis

point of stabiliztion for both hips

Question 3

what 2 forces keep the symphysis together

Answer 3

strong posterior ligaments

sacroiliac joint

Question 4

what is an accessory ligament

Answer 4

ligament that attaches from bone to another ligament, a tendon or other fascia

Question 5

what are the 4 major pelvic ligaments

Answer 5

Iliolumbar: ilia to 5th lumbar verterbrae

Sacrospinous: sacrum to spine of ischium

sacrotuberous: sacrum to ischial tuberosity

sacroiliac ligament: SI joint, posterior and anterior

Question 6

function of iliolumbar ligament

Answer 6

restrict anterior motion of L-5 maybe rotatory movements as well

Question 7

sacrospinous ligament divides space above and below into what and ligament is part of what

Answer 7

greater and lesser sciatic foramen

part of coccygeus muscle

Question 8

sacrotuberous ligament function

Answer 8

restrains anterior movement of sacrum

Question 9

what attaches to sacrotuberous ligament

Answer 9

gluteus maximus
long head biceps femoris tendon
piriformis
connects with fascia of pelvis

Question 10

anterior SI ligament

Answer 10

from 3rd sacral segment to auricular surface of ilium and lateral preauricular sulcus

Question 11

interosseous SI ligament

Answer 11

deep to posterior SI lig

bond between upper parts of the joint (connects tuberosities)

Question 12

posterior SI ligament

Answer 12

partly covers interosserous, from lateral sacral crest to PSIS and internal iliac crest

Question 13

pubic symphysis

Answer 13

secondary cartilaginous joint
surface of bones covered with hyaline cartilage and bones united by strong fibrous CT or fibrocartilage

Fibrocartilagenous joint

Question 14

muscles acting at hip: flexors and extensors

Answer 14

flexors pull pelvis anteriorly

extensors pull pelvis posteriorly

Question 15

hip flexors

Answer 15

iliacus and psoas (major)

rectus femoris and sartorius
adductor longus and brevis
pectineus and gracillis

RAP SG

Question 16

extensor medial hamstring group

Answer 16

semimembranosus
semitendinosus
gracillis
sartorius

Question 17

extensor lateral hamstring group

Answer 17

biceps femoris

Question 18

extensor group other 2 muslces

Answer 18

gluteus maximus

adductor magnus

Question 19

2 minor adductor muscles

Answer 19

gracilis

pectinius

Question 20

adductor group attachment

Answer 20

all attach to the pubic ramus and medial/and or posterior femur

Question 21

abudcutors of hip

Answer 21

gluteus medius and minimus

TFL

Question 22

external rotators of hip

Answer 22

piriformis
gamellus superior
obturator internus and externus
gamellus inferior
quadratus femoris

Question 23

piriformis and sciatic n

Answer 23

10-12% of population has sciatic nerve piercing it so contraction can cause sciatica

Question 24

piriformis function

Answer 24

when hip flexed it is an abductor

when hip extended it is an external rotator