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Myology 1 > Thigh > Flashcards

Thigh Flashcards

0
Q

Semitendinosus

A

O: Ischial tuberosity
I: Pes Anserine
A: knee flexion, hip extension, posterior pelvic tilt.
N: sciatic
Blood: inferior gluteal, obturator and deep femoral

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1
Q

Biceps femoris

A

O: LONG: Ischial tuberosity: SHORT: Linea aspera
I: head of fibula and lateral tibial condyle
A: knee flexion. LONG head only: hip extension and posterior pelvic tilt.
N: sciatic
Blood: inferior gluteal, obturator and deep femoral

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2
Q

Semimembranosus

A

O: Ischial tuberosity
I: medial condyle of tibia (posterior-medial surface)
A: knee flexion, hip extension, posterior pelvic tilt.
N: sciatic
Blood: inferior gluteal, obturator and deep femoral

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3
Q

Tensor Fascia latae

A 
O: ASIS
I: IT band (prox 1/3)
A: abduction, medial rotation, flexion, anterior pelvic tilt
N: superior gluteal
Blood: deep femoral and superior gluteal
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4
Q

Sartorius

A 
O:ASIS
I: pes Anserine 
A: flexion, abduction and lateral rotation at hip. Knee flexion. Anterior pelvic tilt. 
N: femoral
Blood: femoral
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5
Q

Rectus femoris

A

O: AIIS
I: Tibial tuberosity (via patellar ligament)
A: hip flexion, knee extension, anterior pelvic tilt
N: femoral
Blood: femoral and deep femoral

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6
Q

Vastus lateralis

A

O: Linea aspera (lateral lip)
I: tibial tuberosity (via patellar ligament)
A: knee extension; some external rotation
N: femoral
Blood: femoral, deep femoral and popliteal

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7
Q

Vastus medialis

A 
O: linea aspera (medial lip)
I: tibial tuberosity 
A: knee extension
N: femoral
Blood: femoral
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8
Q

What is the common insertion for all the quads?

A

Tibial tuberosity

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9
Q

What are the borders of the femoral triangle?

A 
Iliolingual ligament (superior)
Sartorius (lateral)
Adductor longus (medial)
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10
Q

Vastus intermedius

A 
O: Linea aspera (lateral lip) and anterior shaft of humerus
I: tibial tuberosity
A: knee extension
N: femoral
Blood: deep femoral
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11
Q

Articularis genu

A 
O: anterior distal humerus
I: joint capsule of knee
A: pulls knee capsule and patella proximally during knee extension
N: femoral
Blood: deep femoral
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12
Q

Pectineus

A 
O: Pectineal line of pubis
I: Pectineal line of proximal femur 
A: adduction. Flexion. Anterior pelvic tilt
N: femoral
Blood: femoral, deep femoral, obturator
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13
Q

Adductor longus

A 
O:anterior pubis
I: medial lip of linea aspera
A: adduction, flexion, anterior tilt
N: obturator
Blood: femoral. Deep femoral. Obturator.
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14
Q

Gracilis

A

O: pubis: anterior body and inferior ramus
I: pes anserine
A: adduction, flexion, anterior pelvic tilt
N: obturator
Blood: deep femoral and obturator.

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15
Q

Adductor brevis

A 
O: pubis (inferior ramus)
I: linea asperis (prox 1/3)
A: adduction, flexion, anterior pelvic tilt
N: obturator
Blood: femoral, deep femoral, obturator
16
Q

From superior to deep, the adductor brevis is in between what muscles?

A

Adductors Longus and Magnus

17
Q

Adductor Magnus

A

O: ANTERIOR HEAD: pubis (inferior ramus) and ischium (ramus); POSTERIOR HEAD: ischial tuberosity
I: linea aspera (gluteal tuberosity, adductor tubercle and supra condylar line)
A: adduction. Extension. Posterior pelvic tilt.
Nerve: 1) obturator (ant). 2) sciatic (post)
Blood: ANTERIOR: femoral, deep femoral, obturator. POSTERIOR: deep femoral, inferior gluteal, popliteal, obturator.

18
Q

What nerve innervates the posterior thigh?

A

Sciatic

19
Q

What nerve innervates the anterior thigh?

A

Femoral

20
Q

What nerve innervates the medial thigh?

A

Mostly obturator.

Pectineus innervated by femoral. Adductor Magnus also innervated by sciatic

21
Q

What happens to the sciatic nerve when it crosses the popliteal fossa?

A

It splits into tibial and common Fibular nerves.

22
Q

What is the blood supply for the posterior thigh?

A

Inferior gluteal
Obturator
Deep femoral arteries

Myology 1 (9 decks)

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