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Anatomy > Gluteal Region and Posterior Thigh > Flashcards

Gluteal Region and Posterior Thigh Flashcards

1
Q

Obturator Internus Innervation

A

Nerve to the Obturator Internus

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2
Q

Obturator Internus Action

A

Laterally rotates and stabilizes thigh

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3
Q

What cuts across the center of the obturator interns?

A

Arcus Tendineus

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4
Q

What attaches to the arcus tendineus as it origin?

A

Levator Ani

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5
Q

Gemellus Superior Innervation

A

Nerve to the Obturator Internus

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6
Q

Gemellus Superior Action

A

Laterally rotates and stabilizes thigh

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7
Q

Gemellus Inferior Innervation

A

Nerve to the Quadratus Femoris

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8
Q

Gemellus Inferior Action

A

Laterally rotates and stabilizes thigh

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9
Q

What vessels loop around the sacrospinous ligament?

A

Pudendal Vessels

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10
Q

Piriformis Innervation

A

Nerve to Piriformis (Ventral Rami of S1 and S2

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11
Q

Piriformis Action

A

Laterally rotates and stabilizes thigh

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12
Q

What nerve sits on the anterior side of the piriformis?

A

Sciatic Nerve

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13
Q

Gluteus Minimus Innervation

A

Superior Gluteal Nerve

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14
Q

Gluteus Minimus Action

A

Abducts and medially rotates thigh.

Tilts pelvis on walking.

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15
Q

Gluteus Medius Innervation

A

Superior Gluteal Nerve

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16
Q

Gluteus Medius Action

A

Abducts and medially rotates thigh. Tilts pelvis on walking.

17
Q

Gluteus Maximus Innervation

A

Inferior Gluteal Nerve

18
Q

Gluteus Maximus Action

A

Extends and laterally rotates hip and aids in knee extension

19
Q

What can be observed when the gluteus medius is injured?

A

The pelvis will tilt towards the uninjured side

20
Q

Tensor Fascia Lata Innervation

A

Superior Gluteal Nerve

21
Q

Tensor Fascia Lata Action

A

Maintains knee extended and abducts the thigh

22
Q

Biceps Femoris Innervation

A

Long Head: Tibial Part of Sciatic Nerve

Short Head: Common Peroneal Part of Sciatic Nerve

23
Q

Biceps Femoris Action

A

Flexes and laterally rotates the knee

Long head also extends the hip

24
Q

Semimembranosus Innervation

A

Tibial Part of the Sciatic Nerve

25
Q

Semimembranosus Action

A

Flexes and medially rotates the knee. Also extends the hip.

26
Q

Semitendinosus Innervation

A

Tibial Part of the Sciatic Nerve

27
Q

Semitendinosus Action

A

Flexes and medially rotates the knee. Also extends the hip.

28
Q

Where does the semitendinosus lie?

A

Lies on top of the semimembranosus

29
Q

What does damage to the common peroneal part of the sciatic cause?

A

Foot Drop

Think of the radial nerve in the arm leading to wrist drop

30
Q

What does the femoral artery become after the first perforating of the deep femoral artery?

A

Popliteal Artery

31
Q

What are the four arteries in the cruciate anastamosis?

A

Medial Femoral Circumflex Artery

Inferior Gluteal Artery

Lateral Femoral Circumflex Artery

First Perforating of the Deep Femoral Artery

FILM or MILF

32
Q

What is the tredelenberg sign?

A

Tilting due to injury of the gluteus medius

33
Q

What are the muscles of the gluteal region?

A 
Gluteus Minimus
Gluteus Medius
Gluteus Maxiumus
Superior Gemellus
Inferior Gemellus
Obturator Internus
Quadratus Femorus
Tensor Fascia Lata
Piriformis
34
Q

What is the blood supply to the gluteal region?

A

Superior Gluteal Artery (branch posterior division of the internal iliac)

Inferior Gluteal Artery (branch of the internal iliac)

35
Q

What are the muscles of the posterior thigh?

A

Semimembranosus
Semitendinosus
Biceps Femoris

36
Q

What is the blood supply of the posterior thigh?

A

Perforating Branches of the Profunda Femoris

37
Q

What are the boundaries of the popliteal fossa?

A

Upper medial: semimembranosus and semitendinosus

Upper lateral: Biceps femoris m.

Lower: Two heads of the gastrocnemius

Floor: Femur and articular capsule of the knee joint

38
Q

What are the contents of the popliteal fossa?

A

Superficial to Deep:

  • Sciatic Nerve
  • Popliteal Vein
  • Popliteal Artery

Anatomy (41 decks)

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