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Anatomy (ME) > Posterior thigh & gluteal region > Flashcards

Posterior thigh & gluteal region Flashcards

1
Q

What 4 muscles make up the posterior thigh

A

biceps femoris
semitendenous
semimembranous
adductor magnus- only hamstring portion

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2
Q

what part of adductor magus is part of the posterior thigh

A

the hamstring portion

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3
Q

true/false

muslces of gluteal region are not contained in a fasica

A

true

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4
Q

how many heads does biceps femoris have

A

2 heads
long head
short head

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5
Q

what muscle of the posterior thigh is more lateral

A

biceps femoris

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6
Q

what is the origin of biceps femoris

A

isheal tuberosity

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7
Q

what is the insertion of biecps femoris

A

the head of the tibia

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8
Q

whats the action of the long head of biceps femoris

A

extend hip and flex the knee

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9
Q

whats the action of short head of biceps femoris

A

flex the knee only

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10
Q

what nerves innervated the biceps femoris muscles

A

sciatic nerve

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11
Q

whats the name of the muslce that lies immediatly medial to biceps femoris

A

semitendenous

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12
Q

whats the name of the muscle in the posterior thigh that is tendon shaped

A

semitendenous

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13
Q

what is the orgin of the semitendenous muscle

A

the isheal tuberocity

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14
Q

whats the insertion of the semitendenous muscle

A

the medial side of the head of the tibia

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15
Q

whats the action of the semitendenous muscle

A

extend thigh at hip and flex knee

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16
Q

what nerve innervates the semitendenous muscle

A

sciatic nerve

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17
Q

what muscle lies underneath semitendenous

A

semimembranous

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18
Q

whats the name of the muscle that is flattened, broad and located in the posterior thigh

A

semimembranous

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19
Q

whats the origin of semimembranous

A

isheal tuberosity but further up than semitendenous

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20
Q

whats the insertion of semimembranous

A

medial tibial condyle

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21
Q

whats the actions of semimembranous

A

flexes leg at knee and extend thigh

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22
Q

what nerve innervates the semimembranous muscle

A

sciatic nerve

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23
Q

what are the names of the 3 gluteal muscle

A

gluteal maximum
gluteal medius
gluteal minimus

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24
Q

which is the largest and most superficial gluteal muscle

A

gluteus maximus

25
Q

what are the origins of gluteal maximus

A

posterior aspect of sacrum
iliac crest
sacrotuberous ligament

26
Q

where does the gluteus maximus muscle insert

A

runs down the length of the hamstring towards the popliteal foss

27
Q

What nerve innervates the gluteal maximus muscle

A

inferior gluteal nerve

28
Q

whats the name of the muscle that lies between gluteal maximus and minimus

A

gluteal medius

29
Q

whats the orgin of gluteal medius

A

posterior surface of ilium

30
Q

where does the gluteal medius muscle insert

A

greater trochanter

31
Q

what nerve innervates the gluteal medius muscle

A

the superior gluteal nerve

32
Q

whats the name of the gluteal muscle thats the most smallest and deepest

A

gluteal minimus

33
Q

whats the origin of the gluteal minimus muscle

A

ilium

34
Q

where does the gluteal minimus muscle insert

A

anterior side of the greater trochanter

35
Q

what nerve innervates the gluteal minimus muscle

A

superior gluteal nerve

36
Q

what is the boney prominence of the gluteal region

A

the isheal tuberosity

37
Q

whats the name of the ligament that connects the spine to the ishium

A

the sacrospinous ligament

38
Q

what runs through the greater sciatic foramen

A

the sciatic nerve and the piriformis muscle

39
Q

what is the name of the muscle that is immediately above the sciatic nerve in the gluteal region

A

the piriformis muscle

40
Q

whats the origin of the piriformis muscle

A

the anterior sacrum

41
Q

whats the insertion of the piriformis muscle

A

greater trochanter of femur

42
Q

whats the name of the muscle that is square in shape

A

quadratus femoris

43
Q

what muscle is located below the gemilli muscle and obturator internus muscle

A

quadratus femori

44
Q

whats the name of the muscle that has 2 triangular muscles and is separated by obturator internus tendon

A

gemelli superior and inferior

45
Q

whats the popliteal fossa

A

the diamond shaped area located on the posterior aspect of the thigh

46
Q

what forms the diamond shape of the popliteal fossa

A

the hamstring muscles that insert lateral and medial to the popliteal fossa

semimembranous
semitendenous
biceps femoris

47
Q

what does the sciatic nerve supply

A

all posterior compartment of the thigh and muscles below the knee

48
Q

what does the popliteal fossa contain running through it

A

popliteal vein, artery, tibial nerve and common fibular nerve

49
Q

how does the artrey, vein and sciatic nerve enter the popliteal fossa

A

via the adductor canal

50
Q

whats the name of the vessel that enters the popliteal fossa and drains into the popliteal vein

A

the short saphenous vein

51
Q

what causes sciatic

A

prolapse of the intervertebral foramina that compresses the sciatic nerve

52
Q

what nerve root does the sciatic nerve arise from

A

L5-S4

53
Q

where is referred pain in sciatica felt

A

down the skin of the thigh, leg and foot

54
Q

what is the best location for IM injection on the gluteal regions and why

A

RUQ

has lots of muscle
good absorption

55
Q

what nerve is susceptible to compression in a popliteal aneurysm

A

tibial nerve

56
Q

what symptoms will a patient present with due to compression of the tibial nerve due to a popliteal aneurysm

A

paraesthesia of foot

weakened/absent plantar flexion

57
Q

what sign will be present due to weakened gluteal muscle

A

trendelenberg sign

58
Q

what is + trendelenberg sign

A

pelvic drop when patient stand on unsupported leg without assistance

Anatomy (ME) (23 decks)

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