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Anatomy > LOWER LIMB MUSCLES: ANTERIOR THIGH > Flashcards

LOWER LIMB MUSCLES: ANTERIOR THIGH Flashcards

1
Q

Which nerves innervate the psoas major?

A

branches of the ventral primary rami of spinal nerves L2-L4

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2
Q

Which blood vessels supply the psoas major?

A

subcostal artery, lumbar arteries

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3
Q

Where is the origin of the psoas major?

A

bodies and transverse processes of lumbar vertebrae

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4
Q

Where is the insertion of the psoas major?

A

lesser trochanter of femur (with iliacus) via iliopsoas tendon

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5
Q

Which nerve pierces the anterior surface of the psoas major muscle?

A

the genitofemoral nerve pierces the anterior surface of the psoas major muscle
(Greek, psoas = the muscles of the loins)

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6
Q

Which nerves innervate the iliacus?

A

femoral nerve posterior divisions of L2, 3, 4

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7
Q

Which blood vessels supply the iliacus?

A

iliolumbar artery

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8
Q

Where is the origin of the iliacus?

A

iliac crest, upper 2/3 of iliac fossa anterior surface of sacroiliac and lumbosacral ligament

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9
Q

Where is the insertion of the iliacus?

A

tendon of psoas major into lesser trochanter of femur

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10
Q

What is the function of the iliacus?

A

flexes thigh and flexes pelvis on thigh

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11
Q

Which nerve innervates the rectus femoris?

A

femoral nerve

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12
Q

Which blood vessels supply the rectus femoris?

A

lateral femoral circumflex artery

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13
Q

Where is the origin of the rectus femoris?

A

straight head - ASIS reflexed head - groove on upper surface of acetabulum

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14
Q

Where is the insertion of the rectus femoris?

A

with the other parts of the quadriceps into the tibial tuberosity via the patellar tendon

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15
Q

What is the function of the rectus femoris?

A

extends leg and weak flexor of hip

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16
Q

Which nerves innervate the sartorius?

A

femoral nerve

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17
Q

Which blood vessels supply the sartorius?

A

muscular branches of femoral artery

18
Q

Where is the origin of the sartorius?

A

anterior sup iliac spine (aka ASIS)

19
Q

Where is the insertion of the sartorius?

A

medial surface of tibia inferior to the tuberosity

20
Q

What is the function of the sartorius?

A

flexes thigh, flexes, knee and abducts and laterally rotates thigh

21
Q

Which nerves innervate the tensor fasciae latae?

A

superior gluteal nerve

22
Q

Which blood vessels supply the tensor fasciae latae?

A

superior gluteal artery and lateral
femoral circumflex artery

23
Q

Where is the origin of the tensor fasciae latae?

A

anterior border of ilium and iliac crest

24
Q

Where is the insertion of the tensor fasciae latae?

A

iliotibial tract in middle 1/3 of thigh

25
Q

What is the function of the tensor fasciae latae?

A

counter acts pull of gluteus maximus and aids in abduction, flexion, and medial rotation of the thigh

26
Q

Which nerves innervate the vastus intermedius?

A

femoral nerve

27
Q

Which blood vessels supply the vastus intermedius?

A

lateral femoral circumflex artery

28
Q

Where is the origin of the vastus intermedius?

A

distal half of lateral lip of linea aspera and upper 2/3 of anterolateral surface of the femur

29
Q

Where is the insertion of the vastus intermedius?

A

superior border of patella and by ligamentum patelae into tibial tuberosity

30
Q

What is the function of the vastus intermedius?

A

extends leg

31
Q

Which nerves innervate the vastus lateralis?

A

femoral nerve

32
Q

Which blood vessels supply the vastus lateralis?

A

lateral femoral circumflex artery

33
Q

Where is the origin of the vastus lateralis?

A

upper half of lateral lip of linea aspera

34
Q

Where is the insertion of the vastus lateralis?

A

lateral border of patella and tibial tuberosity via the patellar tendon

35
Q

What is the function of the vastus lateralis?

A

extends leg

36
Q

Which nerves innervate the vastus medialis?

A

femoral nerve

37
Q

Which blood vessels supply the vastus medialis?

A

muscular branches of femoral and
profunda femoris artery

38
Q

Where is the origin of the vastus medialis?

A

medial lip of linea aspera

39
Q

Where is the insertion of the vastus medialis?

A

lateral border of patella and by patella ligament to tibial tuberosity

40
Q

What is the function of the vastus medialis?

A

extends leg and pulls patella medially

Anatomy (13 decks)

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