Hip & Thigh Flashcards
• The acetabulum, like the glenoid, forms a socket. The acetabulum is not a true full circle. It has a circular rim around it but that rim is not a full circle. What fills the space that does not make it a true circle is what is called the ____ notch.
acetabular
The hip joint is a (hinge/ball and socket) joint.
ball and socket
In the hip joint, the (ball/socket) is the femoral head and the (ball/socket) is the acetabulum.
ball; socket
The acetabulum has a deeper concavity than the glenoid and that provides more (mobility/stability).
stability
• The acetabulum is an intersection of what three bones?
The ilium, ischium, and the pubis
• The acetabulum is not fully circular, it’s more horseshoe shaped and the hyaline cartilage only covers the (entire/periphery of the) socket. The hyaline cartilage where it is attached is called the ____ portion.
periphery; lunate
• The whole bony inside of the acetabulum is called the ____ fossa.
acetabular
• The transverse acetabular ligament closes the ring of the acetabulum to provide that (mobility/stability). There is an acetabular labrum that is more external to the rim and this labrum is completely (hyaline cartilage/fibrocartilage) around the horseshoe part of the acetabulum and it continues with the transverse acetabular ligament and blends in with it.
stability; fibrocartilage
• More centrally on the femoral head, the hyaline cartilage is (thicker/thinner) to handle body weight.
thicker
• The femoral head gets its’ blood supply through the ___ and ___ arteries.
medial circumflex and lateral cirumflex
• The acetabular labrum extends out further laterally beyond the greatest diameter of the femoral head and that is important because that means that the acetabular labrum has a (smaller/larger) circumference than the femoral head itself. So the largest portion of the femoral head itself is (superficial/deep) to the acetabular labrum which provides a great amount of stability.
smaller; deep
• The acetabular labrum’s ring is (smaller/larger) than the femoral head.
smaller
• The hip joint has a joint capsule so it is a (synovial/cartilaginous) joint.
synovial
• The (fibrous/synovial) joint capsule at the hip fully covers the anterior portion of the neck of the femur and the femoral head that is exposed and covers 2/3 of the posterior portion. The (fibrous/synovial) portion does not go the full length of the neck anteriorly and it actually folds back in on itself which pins the circumflex arteries to the bone.
fibrous; synovial
• The ___ and ___ arteries are firmly attached to the neck of the femur. So if someone fractures their femoral neck there is a good chance that those blood vessels will be lacerated or ruptured. And if that happens the femoral head will die.
medial circumflex and lateral circumflex
• The most anterior ligament of the hip joint runs from the anterior inferior iliac spine to the intertrochanteric line and this ligament is called the (iliofemoral/pubofemoral) ligament.
iliofemoral
• Due to the orientation of the fibers of the (iliofemoral/pubofemoral) ligament, it creates a Y shape and that is why it is also referred to as the Y ligament of Bigelow.
iliofemoral
• The (iliofemoral/pubofemoral) ligament of the hip is running from the superior pubic ramus to the intertrochanteric line.
pubofemoral
• The most posterior ligament of the hip joint is the (pubofemoral/ischiofemoral) ligament. It is running from the posterior aspect of the hip along the ischial contribution of the acetabular rim, running all the way around laterally and anteriorly to wrap around the base of the femoral neck to attach pretty much on the anterior surface.
ischiofemoral