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HUMB1005 > Posterior Thigh > Flashcards

Posterior Thigh Flashcards

1
Q

Superior Gluteal Nerve Exit Point

A

Greater sciatic foramen, superior to piriformis

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2
Q

superior gluteal nerve supplies:

A

Gluteus Medius
Gluteus Minimus
Tensor Fasciae Latae

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3
Q

Gluteus Medius Attachments

A

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

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4
Q

gluteus medius action/NS

A

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

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5
Q

gluteus minimus attachments

A

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

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6
Q

gluteus minimus action/NS

A

A: hip abduction, medial rotation
NS: superior gluteal

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7
Q

tensor fasciae latae (TFL) attachments

A

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

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8
Q

tensor fasciae latae action(function) and NS

A

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

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9
Q

role of hip abductors while walking

A

prevent drop of contralateral hip

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10
Q

Inferior Gluteal Nerve exit point

A

Exits pelvis via greater sciatic foramen, inferior to piriformis

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11
Q

Inferior Gluteal Nerve Supplies:

A

Gluteus Maximus

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12
Q

Gluteus Maximus Attachments

A

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

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13
Q

Gluteus Maximus Action/NS

A

A: hip extension, lateral rotation
NS: inferior gluteal

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14
Q

Iliotibial Band Formation/Attachments

A

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

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15
Q

Iliotibial Band function

A

Powerful abduction mechanism, stabilises lateral aspect of extended knee

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16
Q

Bursae Definition/Function

A

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

17
Q

Deep Gluteal Muscles

A

Piriformis
Superior Gemellus
Obturator Internus
Inferior Gemellus
Obturator Externus
Quadratus Femoris

18
Q

Piriformis Attachments

A

P: anterior surface of sacrum
D: superior greater trochanter

19
Q

Piriformis Action/NS

A

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

20
Q

Superior Gemellus Action

A

hip lateral rotation

21
Q

Obturator Internus Action/NS

A

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

22
Q

Inferior Gemellus Action

A

Hip Lateral Rotation

23
Q

Quadratus Femoris Attachments

A

P: Ischial Tuberosity
D: Posterior Femur

24
Q

Quadratus Femoris Action/NS

A

A: Hip lateral rotation
NS: Nerve to quadratus femoris

25
Q

Obturator Externus Action/NS

A

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

26
Q

Sciatic Nerve Divides Into 2 Branches:

A

Tibial Nerve
Common fibular nerve

27
Q

What does the sciatic nerve supply?

A

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

28
Q

What is supplied by the tibial nerve

A

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

29
Q

what is supplied by the common fibular nerve

A

biceps femoris short head

30
Q

Biceps Femoris Attachments

A

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

31
Q

Hamstring Muscles Lateral to Medial

A

Biceps Femoris, Semitendinosus, Semimembranosus

32
Q

Biceps Femoris Action/NS

A

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

33
Q

Semitendinosus Attachments

A

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

34
Q

Semitendinosus Action/NS

A

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

35
Q

Semimembranosus Attachments

A

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

36
Q

Semimembranosus Action/NS

A

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

HUMB1005 (9 decks)

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