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SHB Exam 2 > Ant thigh > Flashcards

Ant thigh Flashcards

1
Q

What is the dermatome of the patellar tendon?

A

L4

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2
Q

What dermatomes supply the posterior leg?

A

S1 laterally, S2 medially

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3
Q

What dermatome supplies the skin over the inguinal ligament and mons pubis?

A

L1

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4
Q

What does the external iliac a. pass to become the femoral a?

A

Inguinal ligament

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5
Q

What is the 1st big branch from the femoral a?

A

Deep femoral a.

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6
Q

What does the femoral a. turn into, and *where?

A
  • Popliteal a.

- Adductor hiatus

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7
Q

What vein drains the medial side of the leg?

A

Greater saphenous v.

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8
Q

What vein drains the posterior side of the leg?

A

Lesser saphenous v.

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9
Q

The sciatic n. primarily supplies the ______________ thigh, the femoral n. primarily supplies the ______________ thigh, and the obturator n. primarily supplies the ______________ thigh.

A
  • Posterior
  • Anterior
  • Medial
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10
Q

What mm. are part of the quadriceps group?

A
  • Rectus femoris
  • Vastus medialis
  • Vastus lateralis
  • Vastus intermedius
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11
Q

Which of the quadriceps femoris mm. can act as a hip flexor, in addition to a leg extender?

A

Rectus femoris (crosses hip joint)

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12
Q

Rectus femoris m: OIIA?

A

O: Ilium
I: Patella/patellar tendon

I: Femoral n.
A: Flexes hip, extends leg

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13
Q

Vastus medialis m: OIIA?

A

O: Superior, anterior, medial femur
I: Patella area

I: Femoral n.
A: Extends leg

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14
Q

Vastus intermedius m: OIIA?

A

O: Superior, anterior, midline femur
I: Patellar area

I: Femoral n.
A: Extends leg

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15
Q

Vastus lateralis m: OIIA?

A

O: Superior, anterior, lateral femur
I: Patellar area

I: Femoral n.
A: Extends leg

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16
Q

Sartorius m: OIIA?

A

O: Ant sup iliac spine (lateral thigh)
I: Upper medial tibial shaft (medial leg)

I: Femoral n.
A: Flexes, adducts, laterally rotates leg at thigh. Flexes, medially rotates leg at knee.

17
Q

What mm. make up the pes anserinus?

Why are they grouped together?

A
  • Sartorius, gracilis, and semitendinosus mm.

- All insert at the medial superior tibia like a “goose foot”

18
Q

Gracilis m: OIIA?

A

O: Ischiopubic ramus
I: Upper medial shaft of tibia

I: Obturator n.
A: Adducts hip, flexes leg and medially rotates flexed leg

19
Q

Adductor longus m: OIIA?

A

O: Pubis (tubercle)
I: Lower linea aspera

I: Obturator n.
A: Adducts, medially rotates hip

20
Q

Adductor brevis m: OIIA?

A

O: Pubis
I: Upper 1/3 of linea aspera

I: Obturator n.
A: Adducts hip

21
Q

Adductor magnus m, hamstring part: OIIA?

A

O: Ischial tuberosity
I: Lower gluteal line and linea aspera

I: Sciatic n., tibial division
A: Extends hip

22
Q

Adductor magnus m, adductor part: OIIA?

A

O: Ischiopubic ramis
I: Adductor tubercle

I: Obturator n.
A: Adducts and medially rotates hip

23
Q

Pectineus m: OIIA?

A

O: Pectineal line of pubis
I: Below lesser trochanter

I: Femoral n, sometimes obturator n.
A: Flexes, adducts, medially rotates hip

24
Q

Obturator externus m: OIIA?

A

O: Outer obturator membrane
I: Greater trochanter

I: Obturator n.
A: Laterally rotates hip

25
Q

What are the 3 adductor mm., superficial to deep?

A

Longus, brevis, magnus

26
Q

What are the boundaries of the femoral triangle?

A
  • Inguinal ligament superiorly
  • Medial edge of adductor longus m. medially
  • Laterally by the sartorius m.
27
Q

What important structures lie w/in the femoral triangle?

A

NAVL

  • Femoral n.
  • Femoral a.
  • Femoral v.
  • Deep inguinal lymph nodes
28
Q

What mm. comprise the floor of the femoral triangle?

A

Iliopsoas, pectineus, (and adductor longus) mm.

29
Q

Which aa. pierce the adductor magnus before continuing to the hamstrings?
What are they a branch of?

A
  • Perforating aa.

- Profunda femoris a.

30
Q

What 8 mm. (roughly) contribute to hip flexion?

A
  • Iliopsoas m.
  • Sartorius m.
  • Tensor fascia lata m.
  • Pectineus m.
  • Adductor magnus, longus, brevis mm.
  • Gracilis m.
31
Q

What 6 mm. (roughly) contribute to hip adduction?

A
  • Adductor magnus, longus, brevis mm.
  • Gracilis m.
  • Pectineus m.
  • Obturator externus m.
32
Q

What 7 mm. (roughly) contribute to lateral rotation of the hip?

A
  • Obturator internus/externus mm.
  • Superior/inferior gamelli mm.
  • Piriformis m.
  • Quadratus femoris m.
  • Gluteus maximus m.
33
Q

What 5 mm. (roughly) contribute to extension of the hip?

A
  • The 3 hamgstring mm.
  • Adductor magnus m.
  • Gluteus maximus m.
34
Q

What 3 mm. (roughly) contribute to hip abduction?

A
  • Gluteus minimus m.
  • Gluteus medius m.
  • Tensor fascia lata m.
35
Q

What 3 mm. (roughly) contribute to medial rotation of the hip?

A
  • Gluteus minimus m.
  • Gluteus medius m.
  • Tensor fascia lata m.
36
Q

Articularis genu: OIIA?

A

O: Distal anterior femur
I: Apex of suprapatellar bursa, just below it

I: Femoral n.
A: Pulls suprapatellar bursa superiorly w/extension of knee

SHB Exam 2 (17 decks)

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