Bones And Joints Of The Proximal Lower Limb Flashcards
What composes the pelvis
A bony ring formed by the articulation of the left and right innominate (hip) bones and the sacrum
Acetabulum
Where the 3 bones of the hip fuse
3 bones of the hip
Pubic bone
Ilium
Ischium
What do the hip bones articulate with anteriorly
Each other at the pubic symphysis
What do the hip bones articulate with posteriorly
The sacrum at the sacroiliac joints
What surrounds the obturator Foramen
Superior and inferior pubic rami
Obturator canal
A small gap in the membrane and muscles that cover the obturator Foramen that allows vessels and nerves to pass between the pelvis and thigh
Iliac crest
Uppermost part of the ilium
2 key bony prominences of the ischium
Ischial spine
Ischial tuberosity
Ischial spine
Where the Sacrospinous ligament attaches
Ischial tuberosity
Where the sacrotuberous ligament attaches as well as muscles of the posterior thigh
Where do muscles of the posterior thigh attach to
Ischial tuberosity
What forms the greater and lesser sciatic foramina
Greater and lesser sciatic notches of ischium
Sacrotuberous and Sacrospinous ligaments
Function of the greater and lesser sciatic foramina
Allow structures to pass between the pelvis and the gluteal region and perineum
What is the long bone of the thigh
Femur
Parts of the femur
Head
Neck
Shaft
2 condyles at distal end
What does the head of the femur articulate with
Acetabulum of the pelvis = hip joint
Location of neck of femur
Extends laterally and distally from the head
Greater and lesser trochanters of femur
Located distal to neck
Sites of muscle attachment
Intertrochanteric line
Between the greater and lesser trochanters on anterior surface of femur
Linea aspera
Bony vertical ridge on posterior aspect of shaft of femur
Site of muscle attachment
Gluteal tuberosity
Located just inferior to the trochanters in posterior aspect of femur
Site of muscle attachment
What are the sites of muscle attachment on the femur
Linea aspera
Gluteal tuberosity
Greater and lesser trochanters
Medial and lateral femoral condyles
Distal end of femur
Articulate with the proximal tibia
Adductor tubercle location
Superior to the medial femoral condyle
Patella location
Anterior to knee joint
What type of joint is the hip joint
Synovial ball and socket
Which bones form the hip joint
Articulation between the acetabulum of the hip (innominate) bone and the femoral head
Stability of the hip joint
Stable as the acetabulum is deep and a good fit between it and the femoral head
Acetabular labrum
Ligaments
Acetabular labrum
A rim of fibrocartilage which deepens the acetabulum for even more stability at the hip joint