accessory of the trunk/ functional anatomy

Question 1

thorcaolumbar fascia

Answer 1

3 layers
posterior- covers back muscles- spinous process of lateral vert
middle- quadratus lumborum is in front- tp of lat vert
deep- psoas major in front- vert body

attach to transverse abdominals

muscles contract- tightens and pulls on vert making them stiff providing stability
retinaculum for back muscles
attachment for muscles
stability in lumbar transmit force to lower

Question 2

lumbopelvic stability

Answer 2

posteriorlateral wall- quadratus lumborum, psoas major

anteriorlateral wall- abdominal muscles

pelvic floor

• co-contraction will stiffen trunk
• intraabdominal pressure- increase spine stiffness
• thoracolumbar fascia- tension here increase intrabdominal pressure

Question 3

pelvic drop

Answer 3

hip abducts

ipisilateral glute medius
ipisilateral glute min
contralateral hip adductors
contralateral eo/ io

concentric
opposite side will eccentric

Question 4

pelvic lift

Answer 4

contrlateral- glute medius
contralateral glute min
ipisilateral hip adductors
ipsilateral eo/ io

Question 5

anterior pelvic tilt

Answer 5

increase lumbar lordosis

erector spinae
hip flexors

Question 6

posterior pelvic tilt

Answer 6

hip extenders
abdominals

Question 7

rotation of the pelvis to the right

Answer 7

L- hip lateral rotators
R- hip medial rotators
L- IO
R- EO