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Gross Anatomy Exam 3 > Iliac Region > Flashcards

Iliac Region Flashcards

1
Q

Quadratus Lumborum INSERTION

A

12th rib

L1-L4 vertebra

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2
Q

Quadratus Lumborum INNERVATION

A

T12, L1-L4 Spinal N

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3
Q

Quadratus Lumborum ACTION

A

Unilateral: bends trunk ipsilaterally
bilateral: bearing down & expiration, stabilizes 12th rib

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4
Q

Psoas Major superficial head ORIGIN

A

T12-L4 vertebra & IV discs

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5
Q

Psoas Major Deep head ORIGIN

A

L1-L5 costal processes

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6
Q

Psoas Major Insertion

A

femur (lesser trochanter) joint

insertion with iliopsoas muscle

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7
Q

Psoas Minor ORIGIN

A

T12

L1 Vertebrae & IV discs

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8
Q

Psoas Major INNERVATION

A

direct branches from lumbar plexus (L2-L4)

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9
Q

Psoas Minor INNERVATION

A

Lumbar Plexus L2-L4

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10
Q

Psoas Major ACTION

A

hip joint: flexion & external rotation
lumbar spine (with femur fixed):
unilateral: contraction bends trunk laterally
bilaterally: contraction raises trunk from supine position

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11
Q

Psoas Minor ACTION

A

weak hip flexor

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12
Q

Iliacus ORIGIN

A

iliac fossa

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13
Q

Iliacus INSERTION

A

femur (lesser trochanter) joint

insertion with iliopsoas muscle

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14
Q

Iliacus INNERVATION

A

Femoral N (L2-L4)

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15
Q

Levator Ani 3 types of muscles

A

Puborectalis
Puboccygeus
Ilioceccygeus

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16
Q

Puborectalis ORGIN

A

sup. pubic ramus

17
Q

Puborectalis INSERTION

A

anoccocygeal ligament

18
Q

Levator Ani INNERVATION

A

Direct branches of sacral plexus S4

inf. anal N

19
Q

Levator Ani ACTION

A

pelvic diaphragm : supports pelvic viscera

20
Q

Puboccygeus ORIGIN

21
Q

Pubococcygeus INSERTION

A

anoccoygeal ligament

22
Q

Iliocecygeus INSERTION

A

anococcygeal ligament & coccyx

23
Q

Iliococcygeus ORIGIN

A

ant. obturator fascia of levator ani

24
Q

Coccygeus ORIGIN

A

Sacrum (inf. end)

25
Q

Coccygeus INESRTION

A

ishcial spine

26
Q

Coccygeus INNERVATION

A

direct braches from sacral plexus (S4-S5)

27
Q

Coccygeus ACTION

A

supports pelvic viscera

flexes coccyx

28
Q

Pirofrmis ORIGIN

29
Q

Piriformis INSERTION

A

femur (apex of greater trochanter)

30
Q

Piriformis INNERVATION

A

direct branches of sacral plexus S1-S2

31
Q

Piriformis ACTION

A

hip joint: ext., rotation, stabiliation, and abduction

32
Q

Obturator Internus ORIGIN

A

obturator membrane & bony surface

33
Q

Obturator Internus INSERTION

A

femur (greater trochanter)

34
Q

Obturator Internus (INNERVATION)

A

direect branches from sacral plexus L5-S1

35
Q

Obturator Internus ACTION

A

hip joint: ext, rotation, abduction of flexed hip!

36
Q

Quadratus Lumborum ORIGIN

A

iliac crest & iliocolumbar ligament

Gross Anatomy Exam 3 (8 decks)

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