Iliac Region

Question 1

Quadratus Lumborum INSERTION

Answer 1

12th rib

L1-L4 vertebra

Question 2

Quadratus Lumborum INNERVATION

Answer 2

T12, L1-L4 Spinal N

Question 3

Quadratus Lumborum ACTION

Answer 3

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

Question 4

Psoas Major superficial head ORIGIN

Answer 4

T12-L4 vertebra & IV discs

Question 5

Psoas Major Deep head ORIGIN

Answer 5

L1-L5 costal processes

Question 6

Psoas Major Insertion

Answer 6

femur (lesser trochanter) joint

insertion with iliopsoas muscle

Question 7

Psoas Minor ORIGIN

Answer 7

T12

L1 Vertebrae & IV discs

Question 8

Psoas Major INNERVATION

Answer 8

direct branches from lumbar plexus (L2-L4)

Question 9

Psoas Minor INNERVATION

Answer 9

Lumbar Plexus L2-L4

Question 10

Psoas Major ACTION

Answer 10

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

Question 11

Psoas Minor ACTION

Answer 11

weak hip flexor

Question 12

Iliacus ORIGIN

Answer 12

iliac fossa

Question 13

Iliacus INSERTION

Answer 13

femur (lesser trochanter) joint

insertion with iliopsoas muscle

Question 14

Iliacus INNERVATION

Answer 14

Femoral N (L2-L4)

Question 15

Levator Ani 3 types of muscles

Answer 15

Puborectalis
Puboccygeus
Ilioceccygeus

Question 16

Puborectalis ORGIN

Answer 16

sup. pubic ramus

Question 17

Puborectalis INSERTION

Answer 17

anoccocygeal ligament

Question 18

Levator Ani INNERVATION

Answer 18

Direct branches of sacral plexus S4

inf. anal N

Question 19

Levator Ani ACTION

Answer 19

pelvic diaphragm : supports pelvic viscera

Question 20

Puboccygeus ORIGIN

Answer 20

Pubis

Question 21

Pubococcygeus INSERTION

Answer 21

anoccoygeal ligament

Question 22

Iliocecygeus INSERTION

Answer 22

anococcygeal ligament & coccyx

Question 23

Iliococcygeus ORIGIN

Answer 23

ant. obturator fascia of levator ani

Question 24

Coccygeus ORIGIN

Answer 24

Sacrum (inf. end)

Question 25

Coccygeus INESRTION

Answer 25

ishcial spine

Question 26

Coccygeus INNERVATION

Answer 26

direct braches from sacral plexus (S4-S5)

Question 27

Coccygeus ACTION

Answer 27

supports pelvic viscera | flexes coccyx

Question 28

Pirofrmis ORIGIN

Answer 28

sacrum

Question 29

Piriformis INSERTION

Answer 29

femur (apex of greater trochanter)

Question 30

Piriformis INNERVATION

Answer 30

direct branches of sacral plexus S1-S2

Question 31

Piriformis ACTION

Answer 31

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

Question 32

Obturator Internus ORIGIN

Answer 32

obturator membrane & bony surface

Question 33

Obturator Internus INSERTION

Answer 33

femur (greater trochanter)

Question 34

Obturator Internus (INNERVATION)

Answer 34

direect branches from sacral plexus L5-S1

Question 35

Obturator Internus ACTION

Answer 35

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

Question 36

Quadratus Lumborum ORIGIN

Answer 36

iliac crest & iliocolumbar ligament