Bones and Joints of the Proximal Lower Limb and Muscles of the Gluteal Region adn Thigh and Neurovasculature of the Thigh Flashcards
What is the structure and function of the Pelvis?
Bony ring formed by the articulation of the right and left innominate bones and sacrum
Takes weight of body and transmits it to lower limbs
What is each innominate/hip bone formed from? (3) Where do they fuse?
Pubic, Ilium and Ischium
Acetabulum
Name structures a-d
a- Anterior Superior Iliac spine
b- Iliac crest
c- Sacrum
d- Sacroiliac joint
Name structures e-h
e- Anterior Inferior iliac spine
f- acetabulum
g-Obturator Foramen
h- Pubic symphysis
Name structures i and j.
I-Inferior pubic ramus
J-Superior pubic Ramus
What surrounds the Obturator Foramen? What is it covered with in life?
Superior and Inferior Pubic Rami
Obturator membrane
What is the hole called in the Obturator membrane? What is present inside it?
Obturator canal
Vessels and nerves to pass between the pelvis and thigh
What are the to key bony prominences from the Ischium, posteriorly and Inferiorly?
Sharp Ischial spine
The Bulky ischial tuberosity
Name structures a-e
a- Ischial spine
b- Ischial tuberosity
c- Inferior Ischial ramus
d- Body of Ischium
e- Superior Ischial ramus
What ligaments attach to the Ischial spine and Ischial tuberosity respectively?
Sacrospinous ligament (Ischial spine)
Sacrotuberous ligament and Muscles of the posterior thigh (Ischial tuberosity)
What is found above and below the Ischial spines? (2)
Greater and Lesser sciatic notches
Which ligaments close these notches? To form?
Sacrotuberous and Sacrospinous ligaments
Greater and Lesser sciatic foramen
Which ligament is this? What does it connect?
Sacrotuberous ligament
Sacrum to the the Ischial tuberosity
Which ligament is this? What does it connect?
Sacrospinous ligament
Sacrum to the Ischial spine
Name structures a-e
a- Ischial tuberosity
b- Ischium
c- Pubis
d- Ischial spine
e- Sacrospinous ligament
Name structures f-j
f- Ilium
g- Posterior superior Iliac spine
h- Sacrum
i- Posterior Sacroiliac ligament
j- Greater sciatic foramen
Name structures k-p
k-Sacrospinous ligament
l- Lesser sciatic foramen
m- Sacrotuberous ligament
n- Ischiopubic ramus
o- Subpubic angle
p- Obturator foramen
Name structures a-d
a- Inter-trochanteric line
b- Greater trochanter
c- Neck
d- Head
Name structures e-g
e- neck
f- Greater trochanter
g- Lesser trochanter
Name structures h and i
h- Linea aspera
i- Lesser trochanter
What is the hip joint formed by the articulation of? What are the greater and lesser trochanters for?
Head of femur and acetabulum
sites of muscle attachment (similar to the humerus)
What is the Line located between the greater and lesser trochanters called?
Intertrochanteric line
Bony vertical ridge on the posterior aspect of shaft? Function?
Linea aspera
Muscle articulation
What is the structure located inferior to the trochanters? What aspect of the Humerus? Function?
Gluteal tuberosity
Posterior
Muscle attachment
What is the distal end of the femur expanded to form? What do they articulate with?
Medial and Lateral femoral condyles
Proximal tibia at the knee joint
What is found Superior to the medial femoral condyle? What is located anterior to the knee joint?
Adductor tubercle
Patella
What type of joint is the hip joint? Articulation of?
Ball and socket
Acetabulum of the hip and femoral head
What deepens the acetabulum?
Fibrocartilage known as acetabular labrum
Name structures a-d
a- Femoral head
b- Acetabulum
c- Acetabular labrum
d- Ligament of head of femur
What are the movements of the hip joint? Done by which thigh muscles? (VAGUE)
Flexion- Anterior thigh muscles
Adduction- Medial thigh muscles
Extension- Posterior thigh muscles
Abdution- Muscles of the Gluteal region
What two other movements can the muscles of the Gluteal region cause in the hip joint?
Extension and Rotation
What arteries supply the Hip joint? Where do they arise from?
Medial and lateral circumflex femoral arteries
Profunda femoris
What arteries are an extension of the lateral and medial circlumflex arteries? Where do they run? What do they supply?
Retinacular arteries
Neck of femur
femoral head
What three ligaments stabilise the Hip joint?
Iliofemoral
Pubofemoral
Ischiofemoral (ligaments)
Name a-b
a- Iliofemoral ligament (anterior)
b- Pubofemoral ligament (anterior)
c- Ischiofemoral ligament (posterior)
What type of Joint is the Knee joint? Articulation of?
Synovial Hinge joint
Femoral condyles and tibial condyles
Name a-d
a- Fibula
b- Lateral meniscus
c- Lateral collateral ligament
d- Anterior cruciate ligament
Name e-g
e- Femur
f- Articular surface of patella
g- Posterior cruciate ligament
Name h-j
h- Medial collateral ligament
i- Medial meniscus
j- Tibia
Name a-d
a- Lateral collateral ligament
b- Fibula
c- Posterior cruciate ligament
d- Medial collateral ligament
Name e-g (right knee)
e- Medial meniscus
f- Anterior cruciate ligament
g- Lateral meniscus
When do the femur and tibia achieve their best fit? What prevents them being a good fit?
Extension
Tibia plateaus are flat
What does the femur do to allow us to stand for long periods of times? What does this mean the knee does?
Rotates slightly
Locks in place
Which muscle is responsible for unlocking the knee? How?
Popliteus muscle
Allows flexion
What are the menisci? Where do they sit?
C shaped cartilages
Tibial plateaus
What is the function of the Meniscus? What are the two menisci?
Deepen tibial condyles for articulation
Medial and lateral
What is the Medial meniscus attached to?
Joint capsule and Medial collateral ligament
Where are the Meniscus thickest and thinnest respectively?
Thickest- Peripherally
Thinnest- in centre
two main ligaments in the knee?
Collateral and Cruciate ligaments
What do the medial and lateral collateral ligaments support and prevent respectively?
Support knee
Prevent sideways movement of tibia
What does the Lateral collateral ligament attach? Is it attached to the lateral meniscus?
Femur to the fibula
No it is not
What do the Anterior and posterior cruciate ligaments connect together?
Tibia and femur
What part of the Tibia and Femur does the Anterior cruciate ligament (ACL) attach to respectively?
Tibia- Intercondylar area
Femur- Lateral condyle of femur
What does the anterior cruciate ligament do?
Prevents tibia moving anterior to the femur
What parts of the tibia and Femur is the Posterior cruciate ligament attached to respectively?
Posterior intercondylar area of tibia
Lateral aspect of the medial condyle of the femur
What does the Posterior cruciate ligament (PCL) prevent?
Tibia moving posterior to the femur
How many Gluteal muscles are there?
four
Name muscles a-c
What are these?
a- Gluteus medius
b- Gluteus Maximus
c- Gluteus Mimimus
Superficial muscles of the gluteal region
Name structures d-f
d- Pririformis
e- Gemellus superior
f- Obturator internus
Name g & h
g- Gemellus inferior
h- Quadratus femoris
What muscle is this? What three points does it attach to proximally?
Gluteus maximus:
Posterior surface of ilium
Sacrotuberous ligament
Sacrum
Where does the gluteus maximus insert onto?
Iliotibial band and (less of) gluteal tuberosity