Week 6 Lecture Material Flashcards
what are the boundaries of the gluteal region
superior: crest of ilium
median: sacrum and coccyx
inferior: sacrotuberous ligament and ischial tuberosity.
laterally: greater trochanter
the top of the iliac crest is at about which vertebral level
L3-L4.
what are some things that attach to the ASIS
the sartorius, internal oblique, transverse abdonimus and ilioinguinal ligament
what comes out of the greater sciatic foramen
the superior and inferior gluteal arteries
cutaneous innervation?
superior cluneals from dorsal rami L1-3 middle cluneals from dorsal rami S1-3 inferior cluneals from posterior femoral cutaneous nerve braches subcostal (T12), iliohypogastric and lateral femoral cutaneous nerve.
T12-L1 are the ____
Cluneals are the ___
hips, butt
muscles of the butt region are primarily involved with
abduction and lateral rotation of the thigh.
what innervates the butt muscles
inferior and superior gluteal nerves
what are the inferior and superior gluteal nerves branches off of
the lumbosacral plexus
what are some rotators
quadratus femoris and obturator internus.
sacrotuberous ligament
from the PIIS, sacrum, coccyx to the ischial tuberosity
sacrospinous ligament
from sacrum and coccyx to ischial spine.
which ligament is more anterior? the sacrospinous of tuberous
sacrospinous
the sacrospinous ligament and the sacrotuberous ligament transform the what into foramina
the greater and lesser sciatic notches.
Gluteus maximus
O: ilium posterior to gluteal line, sacrum, sacrotuberous ligament and coccyx
I: gluteal tuberosity and ITB
N: inferior gluteal nerve
A: extends hip run/climb and sit to stand, and laterally rotates.
Piriformis
O: pelvic surface of sacrum
I: grater trochanter
N: nerve to piriformis
A: lat rotation and extension.
from superficial to deep, how do the butt muscles go
maximus, medius, minimus.
where does the inferior gluteal nerve go
through the greater sciatic notch under the piriformis.
Gluteus medius
O: ilium (between iliac crest and sup. gluteal line)
I: greater trochanter
N: superior gluteal nerve
A: abducts and medially rotates hip
Obturator internus
O: obturator membrane
I: greater trochanter
N: nerve to obturator internus
A: laterally rotates and extends thigh.
obturator internus is sandwiched underneath what
the gemellus muscles
Superior Gemellus
O: ischial spine
I: greater trochanter
N: nerve to obturator internus
A: lat rotate and extend thigh
Inferior Gemellus
O: ischial tuberosity
I: greater trochanter
N: nerve to quadratus femoris
A: laterally rotate and extend thigh
Quadratus femoris
O: ischial tuberosity
I: intertrochanteric crest
N: nerve to quadratus femoris
A: laterally rotate and extend thigh.
Gluteus minimus
O: ilium between superior and inferior gluteal lines
I: greater trochanter
N: superior gluteal nerve
A: abduct and medially rotate
Obturator Externus
O: obturator membrane
I: trochenteric fossa
N: obturator nerve
A: adduct and laterally rotate thigh
Tensor Fascia Lata
O: iliac crest
I: ITB
N: superior gluteal nerve
A: abducts and flexes thigh
How does the ITB and fascia lata interact
the FL in sandwiched between the layers of the ITB
what bone does the ITB attach
the tibia
Superior gluteal nerve and vessels pass through the ____ just ___ to the piriformis
greater sciatic foramen superior to the piriformis
what do the superior gluteal vessels provide to
the superficial gluteal Maximus. also pass between the glut med and min to reach the TFL
inferior gluteal nerve and vessels exit the ___ just __ to the piriformis. innervate what
grater sciatic foramen just inferiorly. innervate the deep surface of the gluteal Maximus
Where does the sciatic nerve pass though. inferior or superior to piriformis?
the greater sciatic foramen and inferior to piriformis
what muscles does the sciatic nerve run posterior to
the obturator interns, gemelli and quadrates femoris