Lecture 27 (14-7-14) Flashcards
(39 cards)
What is the demarcation betweent the gluteus and thigh?
gluteal fold.
Gluteal Dermatomes

What are the cutanteous nerves of gluteal
- Superior L1-3 Dorsal Rami
- Middle S1-3 dorsal rami
- inferior cluneal ventral rami S2,S3

What are the superficial gluteal muscles and what do they do?
Extensors and aBductors
all the glutes and tensor fasa lata

Gluteus maximus
- illium, sacrum, coccyx, sacrotuberous lig–> gluteal tuberosity of femor and illiotibial track
- inferior gluteal nerve L5-S2
- actions
- forceful extension of hte hip
- external rotation of extended thigh
- stabilixe the exteneded knee

Gluteus Medius
- Lateral side of illium–> grater trochanter
- Superior gluteal nerve L4-S1
- actions
- abduction of hte hip
- internal rotate the thigh
- Level pelvis during walking

Gluteus Minimis
- Inferior part of lateral illium–>greater trochanter
- Superior gluteal nerve.
- actions
- Abduct the hip
- internal rotate the thigh
- level pelvic during walking

What is gerdies tubericle

Tensor Fascia Lata
- ASIS, iliac crest–> IT tract, gerdys tubercle
- Superior gluteal n L4-S1
- actions
- abduction of the hip

Superior Gluteal nerve injury
cannt contract os the the hip will pop up on one side

What are the deep Gluteal Muscles
EXXTERNAL HIP ROTATORS

Piriformis Muscle
- –> greater trochanter
- Sacral plexus S1, S2
- Lateral rotators of the thigh
a deep gluteal muscle

Superior Gemellus Muscle
- ischial spine–> medial side greater trochanter
- N. to obturator internus
- Lateral hip rotation
a deep gluteal muscle

Obturator internus
- obturator foramne, membrane on medial side–> out through foramen, 90 degree angle–> out lesser sciatic–> greater trochanter
- N. to obturator internus (L5, S1, S2)
- same nerve roots and inferior gluteal nerve
- External thigh rotation
deep gluteal muscle
Inferior Gemellus Muscle
- Ischial tuberosity–> greater trochanter
- N. to quadratus femoris (L4-L5-S1)
- same as superior gluteal nerve
a deep gluteal muscle

Quadratus Femoris Muscle
- lateral border of ischial tuberos–> intertrochanteric crest
- N. to guadratus femoris
- lateral rotation of thigh
a deep gluteal muscle

Obturator externus muscles
- obturator memebrane–>**trocanteric fossa
- obturatior posterior division L3-L4
- ER of hip
medial compartment

Gluteal Bursae
-
Trochanteric bursa
- between gluteus maximus and greater trochangter
- B/c of repetitiev activities like climbing
-
Ischial bursa
- gluteus maximus and inscial tuberosity
-
Gluteafemoral bursa
- iliotibiial tract –> vastolateralis

Pelvic Ligaments
- transform greater and lesser sciatic notches into foramens
-
Sacrotuberous lig
- ilium, sacrum and coccyx–> ischial tuberiosity
-
Sacrospinous ligament
- coccyx, sacrum–> ischial spine

Openings from pelivc cavity to gluteal region
- **greater sciatic foramen **above and below piriformis
- Lesser sciatic foramen
- **obturator canal –> **go to medial thigh
Gluteal Region Nerves and arteries where do they come from and go to (general)
- pelvic cavity– (greater sciatic foramen)–> gluteal region
- gluteal region– (lesser sciatic foramen)–> perineum
Lumbosacral plexus
- Superior gluteal L4-S1
- Gluteus medius
- Gluteus minimus
- Tensor fascia lata
- Inferior gluteal L5-S2
- gluteus maximus
- L4,L5 S1-3 posteiror thigh leg foot plantar
- l4-S1
- inferor gemellus
- quadraus femorus
- dee
- superior gemellus
- opturator internus
- out w/ sciatic nerve
- inferior cluneal n nerves come off to go to cuteanous S2-S3 all somatic sensory nerve
- S2-4

Posterior divisionInternal iliac artery
- Illiolimbar
- illiosacral
- sacrogluteal


