wk 4- attachments and nerve supplies Flashcards
what are the compartments of the gluteal region
superficial (gluteal muscles) and deep (everything else)
what ligament turns the greater and lesser sciatic notch into foramen?
sacrotuberous ligament and sacrospinoous ligament
gluteus max origin and insertion + actions
extensor of hip joint
lateral rotator
abductor
origin- posterior gluteal line, iliac crest, posterior surface of sacrum and coccyx
insertion- iliotibial tract of fascia late and gluteal tuberosity of femur
gluteus medius action, origin and insertion
major abductor and lateral rotator of hip joint
origin- gluteal surface of ilium between anterior and posterior gluteal lines
insertion- lateral surface of greater trochanter of femur
gluteus miniums action, origin, insertion
major abductor and medial rotator of hip
origin- gluteal surface of ilium between anterior nd inferior gluteal lines
insertion- anterior surface of greater trochanter of femur
what prevents pelvic drop on swing limb ?
Gluteus medius and minimus work together to prevent
pelvic drop on swing limb during walking.
deep gluteal muscles actions
lateral rotators of the hip joint
piriformis origin and insertion
o- anterior surface of sacrum between anterior sacral Foramina
I- medial side of superior border of greater trochanter
obturator internus location
o- pelvic surface of obturator membrane
I- medial surface of greater trochanter just superior to trochanteric fossa
superior gemellus location
o- external surface of ischial spine
I- same as obturator internus, medial surface of greater trochanter just superior to trochanteric fossa`
inferior gemellus location
o- superior surface of ischial tuberosity
I- same as obturator internus, medial surface of greater trochanter just superior to the fossa
quadrates femoris location
o-lateral surface of the body of ischium, anterior to tuberosity
I-quadrate tubercle of femur
obturator externes location
I- trochanteric fossa of femur
common function of superficial gluteal muscles
major extensor of the hip joint (max)
major abductor and lateral rotator of hip (med)
major abductor and medial rotator (min)
common function of deep gluteal muscles
all lateral rotators of hip joint
compartments of the thigh region
anterior, medial and posterior
what nerve supplies each compartment of the thigh
anterior- femoral nerve
medial- obturator nerve
posterior- sciatic (mostly by tibial branch nerve)
common actions of the anterior comp of thigh
extension of the knee joint
common functions of the medial thigh comp
adduction of the hip
common functions of the posterior comp of thigh
extension of the hip and flexion of the knee
what muscles make up pes anserinus (goose foot)
gracilis
semitendinosus
sartorius
(medial insertion attachment of the tibia)
iliopsoas actions and insertion
flexor and lateral rotator of hip
I- lesser trochanter of femur
origin of posts major and iliacus
PS- bodies t12-l5
I- iliac fossa
tensor fascia latae origin and insertion
o- iliac crest between ASIS and tubercle
I-ilittibial tract of fascia
sartorius location
o- anterior superior iliac spine
I- medial surface of tibia next to tuberosity
rectus femoris location
o-
straight head: anterior inferior iliac spine
reflected head: superior to acetabular border
I- quadriceps tendon to tibial tuberosity
action of articulates genu
elevates fibrous capsule of the knee during extension
articularis genu location
o- anterior surface fo inferior part of femoral shaft
I-superior part of the fibrous capsule of knee joint
common action of the medial comp of the thigh
adduction of the hip
gracilis location
o-inferior part of ischiopubic ramus
I-medial surface of proximal shaft of tibia with sartorius
adductor longus location
o- external surface of body of pubis
I-middle 1/3 of medial lip of lines aspera
pectineus location
o- superior surface of superior ramus of pubis
I- pectineal line of femur
adductor magus has 2 parts
adductor part and hamstring part
common action of posterior comp of thigh
extensor of hip, flexor of knee
only long head of biceps femoris can extend the hip joint
true
biceps femoris location
o-superomedial area of ischial tuberosity (long)
o- lateral lip of line aspera of femur (short)
I-apex of head of fibula
semitendinosus location
o- superior area of ischial tuberosity
I-medial surface of tibia (pes)
semimembranosus location
o- superior lateral area of ischial tuberosity, next to semitendinosus and biceps
I- posteromedial aspect of medial tibial condyle
gateways to lower limb (4)
- obturator canal
- subinguinal space
- greater sciatic foramen
- lesser sciatic foramen
where does the sacrotuberous ligament attach to?
ischial tuberosity
where does the sacrospinous ligament attach
ischial spine
what muscles attach to the ischial tuberosity
hamstring muscles
what muscles attach to obturator membrane and margins of foramen
obturator internus and externus
what attaches to the ischiopubic ramus
adductor Magnus and gracilis
what attaches to the body of pubis
adductor longus
what attaches to the superior pubic ramus
pectineus
what attaches to the lumbar
psoas minor
what attaches to the greater trochanter and what sides
medial: obturator internus, inferior and superior gemellus
anterior: gluteus minimus
fossa- obturator externus
lateral: gluteal medius
superior: pirifromis
what attaches to the lesser trochanter
iliopsoas
what attaches to the lines aspera
short head of biceps femoris
what attaches to the pectineal line
pectineus
what attaches to the adductor tubercle
adductor magus
what attaches to the iliotibial tract
gluteus maximus and tensor fascia tate
what attaches to medial surface of tibia
gracilis, semiteninosus, sartorius
what attaches to the head of fibula
biceps femoris (single head)
