Flashcards in The Pelvis and hip joint Deck (71)
What does the pelvic girdle connects?
- vertebral column to the femurs
How is the pelvic girdle different to the shoulder girdle?
- much stronger and less flexible
How many bones are there in the pelvic girdle and what are there?
-left hip bone
- right hip bone
How many joints are there in the pelvic girdle and what are they?
- 2 sacroiliac joints
- pubic symphysis joint
What is the role of the pelvic girdle?
- strong and stable
- supports weight of the body
- protects organs and blood vessels
What is the real life position of the pelvic girdle (how is it positioned in the body)?
- it is slightly tipped forwards
- like a bowl tipped forwards
What is another word for the hip bone?
the innominate bone
What are the three sections the innominate bone/hip bone is divided into?
How do the ilium, ischium and pubic parts of the bone develop?
What is the name of the area where the ilium, ischium and pubis fuse?
What is the acetabulum?
the socket that articulates with the femoral head - forming the hip joint (holds the head of the femur)
What is the ilium made up of?
Ala and body
Where is the triradiate cartilage?
made up of 3 cartilages and is in the acetabulum.
What type of joint is the hip joint? (2)
1.ball and socket joint
Where is the hip joint?
between the head of the femur and the acetabulum of the innominate bone
How is stability provided by the hip joint? (3)
1. Acetabular anatomy
2. Fibrous capsule
What are the ligaments of the hip joint? (3)
What is the articular surface of the acetabulum like?
- crescent shaped - lunate surface
What is the inferior deficiency of the acetabulum called?
What is the ace tabular notch bridged by?
transverse acetabular ligament
What is the acetabular labrum and what is it's role?
-a rim/lip of cartilage
- role - deepens the articular surface
What is the fibrous capsule like?
- strong and dense
What aspect of the fibrous capsule enables the hip joint to move around?
- the fact that it is loose and strong
What does the proximal attachment of the fibrous capsule encircle?
the rim of the acetabulum
Where is the distal attachment of the fibrous capsule?
- femoral neck
- intertrochanteric line
- greater trochanter
How does the iliofemoral ligament cover the hip joint?
superiorly and inferiorly
What is the strongest ligament of the hip joint?
What is the role of the illiofemoral ligament?
- prevents hyperextension of the hip during standing
- as it screws into the femoral head
How does the pubofemoral ligament cover the hip joint?
-inferiorly and anteriorly