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Appendicular anatomy > Hip and pelvis muscles > Flashcards

Hip and pelvis muscles Flashcards

1
Q

What makes hip strong and stable

A

articular surface and highly congruent in all positions, strong ligaments around the joints, strong muscles

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2
Q

accessory movement of hip- longitudinal caudad and distraction

A

longitudinal caudad (leg to tail- elongated leg), distraction- seperating the joint surfaces- lateral distraction trying to dislocate hip joint take head of femur out of the acetabulum in the line with neck of the femur)

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3
Q

accessory movement of hip- Antero-posterior and postero- anterior

A

antero- posterior- gliding backwards, postero-anterior- gliding forwards

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4
Q

muscles of hip flexors- iliacus psoas- origins and insertions

A

illio-psoas (conjoined muscle)- origins= conjoined muscles and tendon of psoas major (transverse process of thoracic vertebra 12-lumbar, vertebra 4) and iliacus (iliac fossa- transverse process)
insertion- lesser trochanter

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5
Q

muscles of hip flexors- iliacus psoas- action and innervation

A

action-hip flexion/ trunk flexion at hip

innervation- femoral nerve L2-L3 (lumbar nerve routes 2-3)

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6
Q

Muscles of hip flexors pectineus- origins and insertions

A

origins- superior pubic ramus, insertions- lesser trochanter to the linear aspera

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7
Q

Muscles of hip flexors pectineus- action and femoral nerve

A

extends the knee and flexes the hip, femoral nerve- l2-l3,

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8
Q

Muscles of hip flexors rectus femoris- origins and insertions

A

long head (straight)- AIIS, short head (reflected- ilium above acetabulum) , insertion- quadriceps tendon of the superior poll of patella

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9
Q

Muscles of hip flexors rectus femoris- action and femoral

A

action-extends the knee and flexes the hip, femoral nerve- L2-L4

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10
Q

Muscles of hip flexors sartorius- origins and insertions

A

origins- ASIS, insertions- antero-medial surface of the proximal tibia

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11
Q

Muscles of hip flexors sartorius- action and femoral nerve

A

action- flexes, abducts, laterally rotates the thigh, medially rotates the flexed knee
femoral nerve- L2-L3

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12
Q

Muscles of hip extensors gluteus maximus- origins and insertion

A

origins- all outer surfaces of posterior ilium and coccyx, insertions- iliotibial band, gluteal tuberosity of femur

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13
Q

Muscles of hip extensors gluteus maximus- action and nerve

A

extension of trunk and thigh, lateral rotation of the thigh, inferior gluteal nerve L5, S1-S2 (sacral routes)

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14
Q

Muscles of hip extensors bicep femoris- origins and insertions

A

origins- long head- ischial tuberosity, short head- linea aspera and lateral supracondylar ridge,
insertion- head of fibula, lateral tibial condyle

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15
Q

Muscles of hip extensors bicep femoris- action and nerve

A

action- flexes and laterally rotates the knee, long head extends the hip, sciatic nerve- L5,S1-S3

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16
Q

Muscles of hip extensors semitendinosus- origins and insertions

A

origins- ischial tuberosity, insertions- medial surface of the proximal tibia

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17
Q

Muscles of hip extensors semitendinosus- action and nerve

A

action- extends the hip, flexes and medially rotates the knee, sciatic nerve- L5, S1,S2

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18
Q

Muscles of hip extensors- semimembranosus- origins and insertions

A

origins- ischial tuberosity, insertions- posterior aspect of the medial tibial condyle

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19
Q

Muscles of hip extensors- semimembranosus- action and nerve

A

action- extends the hip, flexes and medially rotates the knee, sciatic nerve, L5, S1,S2

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20
Q

Muscles of hip abductors gluteus medius- origins and insertions

A

origins- outer surface of the ilium, insertions- lateral greater trochanter

21
Q

Muscles of hip abductor gluteus medius- action and nerve

A

action- abducts and medially rotates the pelvis (anterior fibres), superior gluteal nerve, L4-L5,S1

22
Q

Muscles of hip abductor gluteus minimus- origin and insertion

A

origin- outer-surface of the ilium, insertions- anterior surface of greater trochanter

23
Q

Muscles of hip abductor gluteus minimus- action and nerve

A

action- abducts and medially rotates the pelvis (anterior fibres), superior gluteal nerve- L4, L5, S1

24
Q

Muscles of hip abductors tensor fasica latea- orgin and insertion

A

origin- ASIS and lateral iliac crest, insertions- iliotibial band and gerdys tubercle lateral aspect proximal tibia

25
Q

Muscles of hip abductors tensor fasica latea- action and nerve

A

action- flexes and medially rotates the thigh, superior gluteal nerve, L4,L5,S1

26
Q

Piriformis- origins and insertions

A

origins- internal surface of sacrum and gluteal surface of ilium, insertions greater trochanter

27
Q

Piriformis- action and nerve supply

A

action- lateral rotation (deep lateral rotator) and abduction of the flexed hip, nerve supply sacral 1 and 2 (tension and spasm in piriformis effect sciatic nerve)

28
Q

Muscles of hip adductors adductor Magnus- origin and insertion

A

origin- inferior pubic remus and ischial tuberosity, insertions- linea aspera, adductor tubercle

29
Q

Muscles of hip adductors adductor Magnus- action and nerve (superior and inferior aspects)

A

action- superior part (inferior pubic remi aspect) adducts, MR,flex of thigh, inferior part (from interior ischial tuberosity) adducts, laterally rotates and extends
nerve- obturator nerve l3, l4 (supeior), sciatic nerve l4 (inf)

30
Q

Muscles of hip adductors adductor longus- origins and insertions

A

origins- body of pubis- more anteriorly, insertions- middle 2/3 of linea aspera

31
Q

Muscles of hip adductors adductor longus- action and nerve

A

action- adducts and medially rotates the thigh

obturator nerve L3,L4

32
Q

Muscles of hip adductors adductor brevis- origin and insertion

A

action- inferior pubic remi, insertion- lesser trochanter to proximal linea aspera

33
Q

Muscles of hip adductors adductor brevis- action and nerve

A

action- adducts and medially rotates the thigh, obturator nerve L3 and L4

34
Q

Muscles of hip adductors gracilis- origins and insertion

A

origins- inferior ramus of pubis

insertion- upper aspect of medial shaft of tibia

35
Q

Muscles of hip adductors gracilis- action and nerve

A

action- MR, adducts the hip, flexes the knee and MR

obturator nerve L3 and L4

36
Q

Deep lateral hip rotators

A

piriformis, obturator internus, obturator externus, gemellus inferior, gemellus superior, gemellus femoris

37
Q

Muscles involved with hip flexion

A

Psoas major, sartorius, iliacus, pectineus, rectus femoris, gracils

38
Q

what is hip flexion limited by

A

soft tissue/ hamstring tension

39
Q

muscles involved with hip extension

A

gluteus maximus, adductor magnus, biciep femoris, semimembranosus, semitendinosus

40
Q

what is hip extension limited by

A

limited by all ligaments becoming tight and close pack position

41
Q

muscles involved with hip abduction

A

gluteus medius and minimus, sartorius, piriformis

42
Q

what is hip abduction limited by

A

pubofemoral/ iliofemoral med band

43
Q

muscles involved with hip adductors

A

adductor longus, brevis, magnus, pectineus, gracils

44
Q

what is hip adduction limited by

A

ischiofem lateral band/ teres

45
Q

muscles involved with medial rotation

A

gluteus med and min, tensor fascia latae, adductor magnus

46
Q

medial rotation limited by

A

ischiofem lig/ tightness of post capsule

47
Q

muscles involved with lateral rotation

A

gluteus maximus, piriformis, obturator internus and externus, gemellus superior and inferior, quadratus femoris, sartorius

48
Q

what is lateral rotation limited by

A

illiofem lateral band

Appendicular anatomy (20 decks)

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