Lecture 7.3

Question 1

The Lumbosacral joint is a _______ ________ joint

Answer 1

The Lumbosacral joint is a secondary cartilaginous joint

Hyaline cartilage lining the articular surfaces

Question 2

The joint between the sacrum and illium is the….

It is weight bearing?

Answer 2

sacroilliac joint

strong weight-bearer

Question 3

The pubic synphyseal is a _____ cartilaginous joint

Answer 3

secondary

Question 4

The intervertebral disc between L5/S1 is ))) shaped

Answer 4

wedge

Question 5

Lumbar _____ turns to sacral ______

Answer 5

Lumbar lordosis turnsto sacral kyphosis

Question 6

Along with the anterior longitudinal ligament, which other ligaments strengthen the lumbosacral joint?

Answer 6

lumbosacral and illiolumbar ligaments

Question 7

The lumbosacral joint is between the bodies of ___/___

Answer 7

L5/S1

and the articular facet

Question 8

The illiolumbar joint is between the

Answer 8

crest of the illium and the transverse process of L5

Question 9

sacroilliac joint is important for _____ of human body

Answer 9

posture

b/w sacrum and illiac surface of pelvis

Question 10

The sacral _______ makes up the illiosacral joint

Answer 10

The sacral tuberosity makes up the illiosacral joint

locks up the the illac tuberosity

Question 11

The interosseus ligaments lies at the sacral tuberosity - this is an example of a …

Answer 11

The interosseus ligaments lies at the sacral ______ - this is an example of a syndesmosis

Question 12

The syndesmosis in the sacroiliac joint helps to…

Answer 12

pass weight to the pelvic bone from the sacrum

Question 13

There are also anterior and posterior ______ ligaments that assist alongside the interosseous membrane

Answer 13

sacroiliac

Question 14

The ______ligaments converts the lesser sciatic notch into the lesser sciatic foramen

Answer 14

The scarospinous ligaments converts the lesser sciatic notch into the lesser sciatic foramen

Question 15

The accessory ligaments of the sacroilliac joint are..

what are they important for

Answer 15

Sacrospinous and sacrotuberous

Jumping, carrying bags

Any way in which weight is being transferred up from the pelvis - help keep the joint in place

Question 16

The mainline of gravity goes _____ to thWhen there is a tendency for the sacrum to move forward - the _____ ligaments tighten and pull ______- open up the pelvic inlete lumbosacral joint

Answer 16

The mainline of gravity goes anterior to the lumbosacral joint

Question 17

When there is a tendency for the sacrum to move forward - the _____ ligaments tighten and pull ______- open up the pelvic inlet

Answer 17

When there is a tendency for the sacrum to move forward - the interosseous ligaments tighten and pull together - open up the pelvic inlet

Question 18

The sacrum is analagous to the reverse keystone effect - whereby…

Answer 18

the arch helps the hold the sacrum (Keystone) up

The roles are reversed

the tendancy to tilt forward to wight transfer is stopped by the strong ligaments (interosseous) that lock in place and pull the “arch” back into position

Question 19

The illiosacral ligaments relax during ______

Answer 19

pregnancy

Question 20

the pubic symphysis works a a “tie-beam” prevents separation _____ and resisting compression forces via ____

Answer 20

the pubic symphysis works a a “tie-beam” prevents separation laterally and resisting compression forces via femora

Question 21

What are the ligaments of the pubic symphysis

Answer 21

Superior - along the pubic crest

arcuate - underneath

anterior/posterior

Question 22

The pubic symphysis is reinforced by criss-crossing fibres from _____ muscles

Answer 22

The pubic symphysis is reinforced by criss-crossing fibres from abdominal muscles

Question 23

Anterior and posterior _______ ligaments hold the scarococcygeal joint together

Answer 23

scarococcygeal ligaments

Question 24

The pretzel concept explains how pelvic fractures on one side will cause..

Answer 24

a fracture on the other side as well

Question 25

what is spondylolysis

Answer 25

a defect in the pars interarticularis of the vertebral arch.[1] The great majority of cases occur in the lowest of the lumbar vertebrae (L5), but spondylolysis may also occur in the other lumbar vertebrae, as well as in the thoracic vertebrae.

Question 26

Spondylolythesis is…

Answer 26

Spondylolisthesis is the forward displacement of a vertebra, especially the fifth lumbar vertebra, most commonly occurring after a break or fracture

clearly worse than spondylolysis- sciatic nerve in danger

Question 27

what are the margins of the hip joint capsule?

Answer 27

acetabular labrum

intertrochanteric line

above
intertrochanteric crest

Question 28

The illiofemoral ligament is __ shaped\

where does it insert?

Answer 28

y shaped

inserts on the intertrochanteric line of the femur

Question 29

The ______ ligament also inserts on the intertrochanteric line of the femur

Answer 29

pubofemoral

Question 30

_______ligaments fibres spiral from posterior side and meet up with the fibres at the _______ line

Answer 30

Ishiofemoral ligaments fibres spiral from posterior side and meet up with the fibres at the intertrochanteric line

Question 31

All 3 ligaments in the hip joint tighten in hip _____ rotation and ______

Answer 31

all 3 ligaments in the hip joint tighten in hip internal rotation and extenion

Question 32

Hip joint stability is best when in ______ , slight ____ and _______rotation

Answer 32

Hip joint stability is best when in extension, slight abduction and internal rotation - ligaments are tightest

Question 33

Hip dislocation is more common in the ____ direction

Answer 33

posterior

Sitting with legs crossed - force from the front

Question 34

What structures are commonly endangered by hip dislocation?

Answer 34

sciatic nerve

Blood supply to femur - medial femoral circumflex artery (from profunda femoris)