Gluteal Region/Posterior Thigh Flashcards
fovea capitis
site of attachment for the ligament of the head of the femur
greater trochanter of the femur
large prominence that serves as a site of attachment for multiple muscles in the region
quadrate tubercule
site of attachment for the quadratus femoris muscle
just inferior on the greater trochanter posteriorly
gluteal tuberosity
one of the insertion sites for the gluteus maximus
lateral line under the greater trochanter, posteriorly
pectineal line
medial line under the lesser trochanter posteriorly
intertrochanteric crest
crest between the 2 trochanters posteriorly
linea aspera
where the pectineal line and gluteal tuberosity join
os coxa
part of the pelvis that articulates with the femur- joining of ischium, ilium, and pelvis
acetabulum
socket of the hip joint
describe where the gluteus muscles arise in relation to the gluteal lines
glut max- posterior to the posterior line, most medially, (also on sarotuberous ligament
glut med- in between posterior and anterior glut lines
glut mid- between anterior and inferior glut lines
describe the design of the hip ligaments
they are wrapped around the neck of the femur such that they tighten with extension, making it so that you can stand with your hips extended and not expend energy
they insert at the trochanters
the strongest of these ligaments is the iliofemoral, which is anterior and shaped like a Y
the posterior ligaments are weaker
acetabular labrum
a ring of fibrocartilage that deepens the socket of the hip
there is a synovial capsule that surrounds both the blabrum and the joint itself
ok
ligament of the head of the femur
ligamentum teres
extends from the pelvis into the fovea capitis, carrying the artery of the head of the femur
coxa valga/vara
vara- angle is too small
valga- angle is too large
can result in abnormal gaits and degenerative disease
shentons line
artificial radiology shadow formed by femur neck and superior aspect of the obturator foramen
what is the appearance of a fractured femur neck
externally rotated and superiorly displaced leg
osteoarthritis
degenerative arthritis of the hip
trendelenburg test
tests the strength of the glut med/min
lift one leg, and the glut min/med must support the lifted hip. positive is if the lifted hip sags
tensor fasciae lata
stabilizes pelvis and helps to keep knee extended by tensing IT tract
o- asis
ins- IT band
inn- superior gluteal nerve
glut max
laterally rotates thigh at hip
extends thigh against resistance
o- sacrum, ilium, sacrotuberous ligament
ins- IT tract, gluteal tuberosity
inn- inferior gluteal nerve
glut med
abducts and medially rotates thigh, stabilizes hips when opposite leg raised
o- ilium b/t anterior and posterior glut lines
ins- greater trochanter of femur
inn- superior gluteal nerve
glut min
abducts and medially rotates thigh, stabilizes hips when opposite leg raised
o- ilium b/t inferior and posterior glut lines
ins- greater trochanter of femur
inn- superior gluteal nerve
piriformis
laterally rotates the thigh at the hip joint
o- anterior part of sacrum
ins- femur, greater trochanter
inn- sacral plexus
