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Muscles of the Thigh Flashcards

1
Q

What are the 3 compartments of the thigh named by their fascial compartments, and how many are in each group?

A

Anterior (7)
Medial (6)
Posterior (3)

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2
Q

The muscles of the anterior compartment of the thigh are primarily __________ of the hip and ____________ of the knee joint.

A

Flexors, Extensors.

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3
Q

What are the origins of iliopsoas?

A

Psoas and illacus muscles.

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4
Q

What is the insertion of iliopsoas?

A

Lesser trochanter of the femur.

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5
Q

What are the actions of iliopsoas?

A

Flexing and laterally rotate the hip joint.

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6
Q

What innervates iliopsoas?

A

Femoral nerve.

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7
Q

The longest muscle in the body.

A

Sartorius.

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8
Q

What is the origin of satorius?

A

Anterior superior iliac spine.

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9
Q

What is the insertion sartorius?

A

Medial to the tibal tuberosity.

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10
Q

What are the actions of sartorius?

A

Flexion, Abduction, and Externally rotate the hip joint.

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11
Q

What innervates sartorius?

A

Femoral nerve.

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12
Q

A group of four muscles in the anterior compartment of the thigh and is strong extensor muscle of the knee.

A

Quadriceps femoris.

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13
Q

What is the common insertion of the quadriceps?

A

Tibial tuberosity.

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14
Q

What is the origin of Rectus Femoris muscle?

A

Anterior inferior iliac spine.

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15
Q

What is the insertion of rectus femoris?

A

Quadriceps femoris tendon.

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16
Q

What are the actions of rectus femoris?

A

Flexes the hip joint and extends the knee joint.

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17
Q

What is the origin of vastus lateralis?

A

Linea aspera.

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18
Q

What is in the insertion of vastus lateralis?

A

Quadriceps femoris tendon.

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19
Q

What is the action of vastus lateralis?

A

Extends the knee joint.

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20
Q

What is the origin of vastus medialis?

A

Linea.

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21
Q

What is the insertion of vastus medialis?

A

Quadriceps femoris tendon.

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22
Q

What is the action of vastus medialis?

A

Extension of knee joint.

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23
Q

What is the origin of vastus intermedius?

A

Upper 2/3 of the femoral shaft.

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24
Q

What is the insertion of vastus intermedius?

A

Quadriceps femoris tendon.

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25
What is the action of vastus intermedius?
Extends the knee joint.
26
What innervates the quadriceps of the thigh?
Femoral nerve.
27
The muscles in the medial compartment of the thigh are primarily _____________ of the hip because of their medial orientation.
Adductors.
28
What is the origin of the pectineus?
Pectineal line.
29
What is the insertion of pectineus?
Proximal femur.
30
What are the actions of the pectineus?
Adduction and flexing of the hip joint.
31
What innervates pectineus?
Femoral nerve.
32
What is the origin of adductor longus?
Pubis.
33
What is the insertion of adductor longus?
Linea aspera.
34
What are the actions of adductor longus?
Adducts and internally rotates the hip joint.
35
What innervates adductor longus?
Obturator nerve.
36
What are the origins of adductor magnus?
Adductor part: Ischiopubic ramus | Hamstring part: Ischial tuberosity.
37
What are the insertions of adductor magnus?
Adductor part: Linea aspera | Hamstring part: Adductor tubercle.
38
What are the actions of adductor magnus?
Adducts and medially rotates the thigh at hip joint.
39
What innervates adductor magnus?
Obturator nerve.
40
What is the origin of adductor brevis?
Body of pubis and inferior pubic ramus.
41
What is the insertion of adductor brevis?
Linea aspera.
42
What are the actions of adductor brevis?
Adducts and internally rotates the hip joint.
43
What innervates adductor brevis?
Obturator nerve.
44
What is the origin of gracilis?
Body and inferior ramus of pubic bone.
45
What is the insertion of gracilis?
Pes anserinus.
46
What are the actions of gracilis?
Adducts thigh at hip joint and flexes leg at knee joint.
47
What innervates gracilis?
Obturator nerve.
48
What is the origin of obturator externus?
External surface of obturator membrane.
49
What is the insertion of obturator externus?
Trochanteric fossa.
50
What are the actions of obturator externus?
Laterally rotates the hips.
51
What innervates obturator externus?
Obturator nerve.
52
What is the origin of semitendinosus?
Ischial tuberosity.
53
What is the insertion of semitendinosus?
Pes anserinus.
54
What are the actions of semitendinosus?
Flexes leg at knee joint and extends thigh at knee joint.
55
What innervates semitendinosus?
Sciatic nerve.
56
What is the origin of semimembranosus?
Ischial tuberosity.
57
What is the insertion of semimembranosus?
Medial tibial condyle
58
What are the actions of semimembranosus?
Flexes leg at knee joint and extends thigh at knee joint.
59
What innervates semimembranosus?
Sciatic nerve.
60
What is the origin of the short head of the biceps femoris?
Linea aspera.
61
What is the origin of the long head of the biceps femoris?
Ischial tuberosity.
62
What is the insertion of the short and long head of the biceps femoris?
Head of fibula.
63
What are the actions of biceps femoris?
Knee flexion, High extension, and Lateral rotation of hip and knee.
64
What innervates biceps femoris?
Sciatic nerve.

Anatomy (60 decks)

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