Posterior Thigh

Question 1

Superior Gluteal Nerve Exit Point

Answer 1

Greater sciatic foramen, superior to piriformis

Question 2

superior gluteal nerve supplies:

Answer 2

Gluteus Medius
Gluteus Minimus
Tensor Fasciae Latae

Question 3

Gluteus Medius Attachments

Answer 3

P: External Surface of ilium
D: Lateral surface of greater trochanter

Question 4

gluteus medius action/NS

Answer 4

A: hip medial rotation (only anterior fibres), extension, abduction
keeps ipsilateral pelvis level while standing on one leg
NS: superior gluteal

Question 5

gluteus minimus attachments

Answer 5

P: external surface of ilium
D: anterior surface of greater trochanter

Question 6

gluteus minimus action/NS

Answer 6

A: hip abduction, medial rotation
NS: superior gluteal

Question 7

tensor fasciae latae (TFL) attachments

Answer 7

P: ASIS and anterior part of iliac crest
D: via iliotibial band, attaches to anterolateral tubercle of tibia

Question 8

tensor fasciae latae action(function) and NS

Answer 8

A: abduction, flexion, medial rotation of hip
keeps ipsilateral pelvis level when standing on one leg
NS: superior gluteal

Question 9

role of hip abductors while walking

Answer 9

prevent drop of contralateral hip

Question 10

Inferior Gluteal Nerve exit point

Answer 10

Exits pelvis via greater sciatic foramen, inferior to piriformis

Question 11

Inferior Gluteal Nerve Supplies:

Answer 11

Gluteus Maximus

Question 12

Gluteus Maximus Attachments

Answer 12

P: Posterior ilium, dorsal sacrum and coccyx, erector spinae aponeurosis and sacrotuberous ligament
D: via the iliotibial band and superior portion of posterior femur

Question 13

Gluteus Maximus Action/NS

Answer 13

A: hip extension, lateral rotation
NS: inferior gluteal

Question 14

Iliotibial Band Formation/Attachments

Answer 14

Forms via common distal attachments of gluteus maximus and TFL, attaches onto anterolateral tubercle of femur

Question 15

Iliotibial Band function

Answer 15

Powerful abduction mechanism, stabilises lateral aspect of extended knee

Question 16

Bursae Definition/Function

Answer 16

closed collapsed sacs of serous membranes
produce thin film of lubricating fluid within sac at friction points

Question 17

Deep Gluteal Muscles

Answer 17

Piriformis
Superior Gemellus
Obturator Internus
Inferior Gemellus
Obturator Externus
Quadratus Femoris

Question 18

Piriformis Attachments

Answer 18

P: anterior surface of sacrum
D: superior greater trochanter

Question 19

Piriformis Action/NS

Answer 19

A: hip lateral rotation when in extension (when standing)
NS: branches of ventral rami of S1,S2

Question 20

Superior Gemellus Action

Answer 20

hip lateral rotation

Question 21

Obturator Internus Action/NS

Answer 21

A: Lateral rotation of hip
NS: nerve to the obturator internus

Question 22

Inferior Gemellus Action

Answer 22

Hip Lateral Rotation

Question 23

Quadratus Femoris Attachments

Answer 23

P: Ischial Tuberosity
D: Posterior Femur

Question 24

Quadratus Femoris Action/NS

Answer 24

A: Hip lateral rotation
NS: Nerve to quadratus femoris

Question 25

Obturator Externus Action/NS

Answer 25

A: lateral rotation/stabilisation of hip NS: obturator nerve

Question 26

Sciatic Nerve Divides Into 2 Branches:

Answer 26

Tibial Nerve Common fibular nerve

Question 27

What does the sciatic nerve supply?

Answer 27

Semitendinosus, Semimembranosus, Biceps Femoris, Hamstring portion of adductor magnus, hip joint

Question 28

What is supplied by the tibial nerve

Answer 28

semitendinosus, semimembranosus, biceps femoris long head, adductor magnus hamstring portion

Question 29

what is supplied by the common fibular nerve

Answer 29

biceps femoris short head

Question 30

Biceps Femoris Attachments

Answer 30

P (short head): linea aspera and lateral supracondylar line P(long head): ischial tuberosity D: lateral side of head of fibula

Question 31

Hamstring Muscles Lateral to Medial

Answer 31

Biceps Femoris, Semitendinosus, Semimembranosus

Question 32

Biceps Femoris Action/NS

Answer 32

A: Hip Extension, Knee flexion/lateral rotation NS: short head - common fibular nerve long head - tibial nerve

Question 33

Semitendinosus Attachments

Answer 33

P: Ischial Tuberosity D: Anterior surface of medial condyle of tibia

Question 34

Semitendinosus Action/NS

Answer 34

A: Hip extension, knee flexion/medial rotation NS: tibial division of sciatic nerve

Question 35

Semimembranosus Attachments

Answer 35

P: ischial tuberosity D: posterior surface of medial condyle of tibia

Question 36

Semimembranosus Action/NS

Answer 36

A: knee flexion, hip extension NS: tibial division of sciatic nerve