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Anatomy 4 > Anterior, Medial, Posterior Thigh > Flashcards

Anterior, Medial, Posterior Thigh Flashcards

(67 cards)

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1
Q

When you see anterior thigh what nerve should you always think?

A

Femoral nerve

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2
Q

The entire thigh is covered in fascia known as what?

A

Fascia lata

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3
Q

What is the function of fascia lata?

A

contains structures which improves efficiency of msucular contractions

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4
Q

Which direction does fascia lata thicken and what is this thickened portion called?

A

laterally

iliotibial band

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5
Q

What motion does the iliotibial band assist in?

A

knee flexion

knee extension

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6
Q

How does the iliotibial band move during knee flexion/extension?

A

During knee flexion= it slides posterior to the knee joint

During knee extension= it slides anterior to the knee joint

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7
Q

What are the anterior thigh muscles?

A

Sartorius
Iliacus
Pectineus
Quadriceps: Rectus femoris, Vastus lateralis, Vastus medialis, Vastus intermedius

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8
Q

What are the attachment sites of tensor fascia?

A

iliac crest
onto
iliotibial band

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9
Q

What is the innervation of tensor fascia?

A

superior gluteal nerve

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10
Q

What action does tensor fascia cause?

A

hip flexor
hip abduction
IR of hip

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11
Q

What are the attachment sites of Sartorius?

A

ASIS
onto
pes anserinus “tailor muscle”

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12
Q

What innervates Sartorius?

A

femoral nerve

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13
Q

What action does Sartorius cause?

A 
Hip abduction
ER of Hip
Hip flexion
it crosses the knee joint therefore also:
knee flexion
IR of TIBIA
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14
Q

What are the attachment sites of Pectineus?

A

pectineal line on superior pubic ramus
onto
pectineal line on femur

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15
Q

What structures is superficial to pectineus?

A

femoral artery and vein

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16
Q

What innervates the Pectineus?

A

Femoral nerve
and
Obturator nerve

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17
Q

Why is Pectineus dually innervated?

A

bc its located in between the anterior and medial thigh

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18
Q

What action does Pectineus cause?

A

hip flexion

hip adduction

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19
Q

What are the attachment sites of iliacus?

A

iliac fossa
AIIS
onto
lesser trochanter of the femur

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20
Q

What innervates iliacus?

A

femoral nerve

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21
Q

What action does iliacus cause?

A

hip flexion

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22
Q

What are the attachment sites of all Quadriceps?

A

Rectus femoris: AIIS
Vastus lateralis: lateral lip of linea apsera
Vastus medialis: medial lip of linea aspera
Vastus intermedius: anterior aspect of shaft of femur
all four onto quadriceps tendon

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23
Q

What does the quadriceps tendon insert into?

A

patellar tendon

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24
Q

What does the patellar tendon insert into and cause what action?

A

tibial tuberosity and causes knee extension

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25
What is VMO?
vastus medialis oblique, distal medial muscle near knee
26
What is the bursa located superficial and anterior to the patella?
pre-patellar bursa
27
If you fall on your knee what can you assume you inflammed?
pre-patellar bursa
28
What is the bursa located deep to quadriceps tendon? and what is it's function?
supra-patellar bursa. | ensures the quadriceps move smoothly
29
What is the bursa deep to patellar tendon? and what is it's function?
infra-patellar bursa | ensures the patella moves smoothly
30
What is the pocket of muscle that prevents bursa from being trapped under the patella called?
articularis genu
31
What does the articularis genu attach to?
supra-patellar bursa
32
What vein, artery, and one other nerve besides the femoral nerve is found in the anterior thigh?
Deep femoral artery saphenous nerve Great saphenous vein
33
When you see medial thigh what nerve should you think?
Obturator nerve
34
Where is the obturator nerve found in between?
adductor longus and adductor brevis
35
What does the obturator nerve branch into?
anterior and posterior branches of the obturator nerve
36
What are the 4.5 muscles of the medial thigh?
``` Gracilis Adductor longus Adductor brevis Adductor magnus ***Pectineus (found in anterior thigh as well) ```
37
What is the most medial, medial thigh muscle and what is it's attachment sites?
Gracilis pubic symphysis onto pes anserinus
38
What is the function of Gracilis?
hip adduction knee flexion IR tibia
39
What is the attachment sites of Adductor longus?
Pubic tubercle onto linea apsera
40
What is the action adductor longus causes?
hip adduction
41
What is the attachment sites of Adductor brevis?
inferior pubic ramus onto pectineal line of femur
42
How are adductor brevis and adductor longus oriented?
adductor brevis is deep to adductor longus
43
How is adductor magnus oriented?
its deep to adductor brevis
44
What action does adductor magnus cause?
hip extension | hip adduction
45
The adductor magnus has what two portions?
posterior aspect called hamstrings | anterior aspect called adductor portion
46
What is the attachment sites of the adductor portion of adductor magnus?
inferior pubic ramus linea apsera onto adductor tubercle
47
The posterior, hamstring portion of adductor magnus is innervated by what?
tibial portion of sciatic nerve
48
What are the attachment sites of the posterior hamstring portion of adductor magnus?
ischial tuberosity onto adductor tubercle
49
When you see posterior thigh what nerve should you think of?
Sciatic nerve
50
What are the two groups of hamstring muscles?
medial hamstring | lateral hamstring
51
What is the common orgin to all hamstring muscles?
ischial tuberosity
52
What are the medial hamstring muscles?
Semitendonosus Semimembranosus Adductor magnus
53
What is the most superficial medial hamstring? and where does it attach to?
Semitendonosus | onto anterior-medial tibia at pes anserinus
54
What is the medial hamstring deep to semitendonosus and is wider? What does it attach to?
Semimembranosus onto medial meniscus and posterior aspect of tibia
55
What is medial hamstring muscle deep to semimembranosus?
Adductor magnus
56
What is the action of Medial hamstring muscles?
IR of tibia
57
What are the two lateral hamstring muscles?
biceps femoris short head | biceps femoris long head
58
What is the action of lateral hamstring muscles?
ER of tibia
59
What is the attachment sites of biceps femoris short head?
linea asprea blends in with biceps femoris onto fibular head
60
What is the attachment sites of biceps femoris long head?
ischial tuberosity onto head of fibula
61
All hamstring muscles do what action? except what muscle?
hip extension knee flexion except adductor magnus
62
What are the two branches of the sciatic nerve?
tibial branch | common fibular nerve
63
What are other nerves besides tibial and common fibular nerve that branches from sciatic nerve?
medial sural cutaneous branch lateral sural cutaneous branch sural nerve
64
What are the borders of the popliteal fossa?
biceps femoris semimembranosus medial head of gastrocnemius lateral head of gastrocnemius
65
What does the popliteal fossa contain?
popliteal artery and vein
66
What does the popliteus muscle do?
Knee flexion IR of tibia unlocks the knee, opposite of screw home mechanism
67
Where is the popliteus muscle located? and what are its attachments?
behind the knee lateral condyle of femur onto medial aspect of tibia

Anatomy 4 (8 decks)

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