spine muscles

Question 1

external obliques

Answer 1

bilaterally compresses abdomen, flexes the spine, unilaterally laterally flexes the trunk to the same side, rotates the trunk to opposite side

Question 2

internal oblique

Answer 2

spine flexion, unilaterally laterally flexes spine and rotates the spine to the same side

Question 3

rectus abdominus

Answer 3

flexes vertebral column, flexes abdominal wall, abdomen flexion

Question 4

rotatores

Answer 4

rotation of thoracic spine, spine extension, contralateral ration of the head (opposite side to turn of flexed muscle)

Question 5

multifidus

Answer 5

stabilization of vertebrae in local movements of vertebral column, thoracic spine rotation, neck and spine extension

Question 6

erector spinae

Answer 6

spinalis, longissimus, iliocostalis. all muscles perform spine extension

Question 7

quadratus lumborum

Answer 7

depresses 12th rib, unilaterally raises pelvis, hip hiking muscle, spine stabilizer

Question 8

sternocleidomastoid

Answer 8

neck flexion, neck lateral flexion, neck extension, contralateral rotation of the head (turning away from the side that the muscle flexes)

Question 9

splenius capitus

Answer 9

neck and spine extension and lateral rotation, ipsilateral rotation of the had (Turning towards the side that the muscle flexes)

Question 10

suboccipital

Answer 10

neck extension