Muscles and Joints of the Hip and Pelvis Flashcards
Where the Head of the Femur articulates with the Acetabulum
Ball and Socket joint (Synovial and Multiaxial)
Actions: Flexion/Extension, Abduction/Adduction, Internal/External Rotation
Coxafemoral (Hip) Joint
Horseshoe-shaped articular surface in the Acetabulum
Articular Surface of the Acetabulum
“Earth”
Meaning round
Teres
Ligament that connects the Head of the Femur to the Acetabulum (and the AKAs)
Attaches at the Fovea
Ligament of the head of the Femur (Ligamentum Teres, Round Ligament, Foval Ligament)
Fibrocartilagenous lip that attaches to the boney rim of the Acetabulum
Makes the socket of the Acetabulum deeper
Acetabular Labrum
Notch between the two ends of the horseshoe (articular surface) of the Acetabulum
Passage for blood vessels into the Acetabulum (Joint Capsule of the Coxafemoral Joint)
Acetabular Notch
Shallow depression in the centre of the Acetabulum Filled (occupied) by a fat pad covered with synovium (synovial membrane)
Acetabular Fossa
Connects (closes) the Acetabular Notch
Transverse Ligament of the Acetabulum
Checks (restricts) extension, abduction and lateral rotation
Medially attaches at the AIIS and Acetabular rim
Laterally attaches at the Intertrochanteric line of the Femur
Iliofemoral (Y) Ligament
Checks (restricts) abduction
Medially attaches at the Superior Pubic Ramus
Laterally attaches at the Iliofemoral Ligament
Pubofemoral Ligament
Sac (envelope) of Synovial Fluid that lies over the Ischial Tuberosity, under the tendon.
Ischiogluteal Bursa
One of the two Bursae on the Greater Trochanter, further from the surface of the skin
Between the Gluteus Medius and the Greater Trochanter
Deep Trochanteric Bursa
One of the two Bursae on the Greater Trochanter, closer to the surface of the skin
Between the Gluteus Maximus muscle and the Greater Trochanter
Superficial Trochanteric Bursa
Checks (restricts) hyperextension
Medially attaches at the Ischial part of the Acetabular Rim
Laterally attaches at the Femoral Neck and medial Greater Trochanter
Ischiofemoral Ligament
Inflammation of the Ischiogluteal Bursa
Weaver’s Bottom
Joint between the two Pubic Tubercles
Cartilaginous Joint
Limited movement
Pubic Symphysis
Sac (envelope) of Synovial fluid that sits between the Iliopsoas muscle and the Iliopubic Eminence
Iliopectineal Bursa
Ligament that runs across the superior end of the Pubic Symphasis
Attaches at the Pubic Tubercles
Superior Pubic Ligament
Ligament that runs across the inferior end of the Pubic Symphysis
Forms the Pubic Arch
Inferior Pubic Ligament
Where the Auricular Surface of the Ilium and the Sacrum articulate
Synovial Joint (Plane Joint)
Limited Movement
SacroIliac (SI) Joint
Ligament that connects the Sacrum to the Ilium on the anterior side of the body
Medially attaches on the superior portion of the Sacrum
Laterally attaches on the medial side of the Ilium
Anterior Sacroiliac Ligament
Ligament that connects the Sacrum to the Ilium on the posterior side of the body
Medially attaches to the posterior of the Sacrum
Laterally attaches to the medial side of the Ilium, between the PSIS and PIIS
Posterior Sacroiliac Ligament
Ligament of the Pelvis Connects the Ischial Spine to the Coccyx and inferior Sacrum
Converts the Greater Sciatic Notch into the Greater Sciatic Foramen
Sacrospinous Ligament
Ligament of the Pelvis
Medially attaches on the inferior portion of the posterior surface of the Sacrum
Laterally attaches to the Ischial Tuberosity
Sacrotuberous Ligament
Ligaments that maintain the structure of the Pelvis
Iliolumbar, Sacrotuberous and Sacrospinous Ligaments
Relax during childbirth
Vertebropelvic Ligaments
Ligament that stabilizes the L5 and restricts lateral flexion of the hip
Medially attaches at the transverse processes of the L4 and L5 vertebrae
Laterally attaches at the medial end of the posterior Iliac Crest
Iliolumbar Ligament
Connective tissue that runs throughout the thigh and surrounds the thigh muscles in a dense tubular sheath
Fascia Lata
Thickening of the Fascia Lata on the lateral side of the thigh
PA: Iliac Tubercle Attaches
DA: Lateral Tibial (Gerdy’s) Tubercle and the Patella (Knee Cap)
Iliotibial Tract (or Band)
Gluteus Maximus, Gluteus Medius and Gluteus Minimus
Muscles that make up “The Butt”
“The Gluteals”
Agonist for hip Extension
Also active in Lateral (external) Rotation and Abduction of the Coxafemoral (hip) Joint
PA: lateral posterior surface of the Ilium (gluteal line), and the posterior surface of the Sacrum, Coccyx and Sacrotuberous Ligament
DA: Iliotibial Band and Gluteal Tuberosity
Gluteus Maximus
Agonist for hip Abduction
Also active in Lateral (external) and Medial (internal) rotation and Flexion and Extension of the Coxafemoral (hip) Joint, as well as providing support for the Pelvis
PA: external Ilium (gluteal line)
DA: Lateral surface of the Greater Trochanter
Gluteus Medius
Active in Abduction, Medial (internal) Rotation and Flexion of the Coxafemoral (hip) Joint
PA: external Ilium (gluteal line), deep to the Gluteus Medius
DA: anterior surface of the Greater Trochanter, deep to the Gluteus Medius
Gluteus Minimus
Psoas Major and Iliacus muscles
Iliopsoas
Prime Mover, in conjunction with the Iliacus, for Flexion of the Coxafemoral (hip) Joint
PA: T12-L5 vertebrae
DA: Lesser Trochanter Flexes Lumbar Spine, when already in Flexion
Psoas Major
Works with Psoas Major in Flexion of the Coxafemoral (hip) Joint
PA: Iliac Fossa
DA: Lesser Trochanter Pulls Coxal (hip) bones into anterior Tilt
Iliacus
Active in Lateral (external) Rotation, Abduction (when hip flexion at 60 degrees) and Medial (internal) Rotation (when hip flexion is above 60 degrees) of the Coxafemoral Joint
PA: anterior Sacrum, through the Greater Sciatic Foramen
DA: Posteromedial aspect of the Greater Trochanter
Piriformis
Active in Flexion, Abduction and Medial (internal) Rotation of the Coxafemoral (hip) Joint
PA: external aspect of the ASIS
DA: Iliotibial Band
Tensor Fascia Lata (TFL)
Swaying gait, loads all weight over the lateral side of the leg
Result of weak or disfunctional Gluteus Medius
Trendelenburg Gait
The iliofemoral ligament attaches ___ and ___ and checks…
- AIIS, acetabular rim <==> intertrochanteric line of the femur
- checks extension, abduction, lateral rotation
The pubofemoral ligament attaches ___ and ___ and checks…
- superior pubic ramus <==> iliofemoral ligament
- checks abduction
The ischiofemoral ligament attaches ___ and ___ and checks…
- ischial part of the acetabular rim <==> femoral neck and medial greater trochanter
- checks hyperextension
The greater sciatic notch is a passageway for…
- sciatic nerve
- piriformis
- posterior femoral cutaneous nerve
Where is the iliac tubercle (tuberculum)?
about 5cm posterior to ASIS
What passes over the iliopubic eminence?
iliopsoas
What connects from the ASIS to the pubic tubercle?
the inguinal ligament
The depression between the abdomen and the thigh is known as the:
inguinal region aka groin
Where does the inguinal ligament attach?
ASIS – pubic tubercle