other muscles of posterior trunk

Question 1

Answer 1

erector spinae

Question 2

Answer 2

longisimmus part of errector spinae

Question 3

Answer 3

iliocostalis part of erector spinae

Question 4

Answer 4

trapezius

Question 5

Answer 5

splenius capitis

deep to trapezius

Question 6

Answer 6

rhomboid major

deep to trapezius

Question 7

Answer 7

rhomboid minor

deep to trapezius

Question 8

Answer 8

quadratus lumborum

Question 9

Answer 9

latissimus dorsi

Question 10

Answer 10

spinalis part of erector spinae

Question 11

splenius capitis

Answer 11

extend head

vertebrae (spinous process)
mastoid process and occipital bone; cerivcal vertebrae

Question 12

erector spinae

Answer 12

sitting and standing erect; arching back

ribs, thoracic and lumbar vertebrae
mastoid process

Question 13

quadratus lumborum

Answer 13

extends lumbar spine; aids respiration

iliac crest
rib 12

Question 14

rhomboid major

Answer 14

retract scapula

t2-t5 vertebrae
scapula (medial border)

Question 15

rhomboid minor

Answer 15

retract scapula

c7-t1 vertebrae
scapula (medial border)

Question 16

trapezius

Answer 16

elevate shoulder (apex)

c7-t12, scapula, clavicle, rib

Question 17

latissimus dorsi

Answer 17

adduction and extension of arm

vertebrae; lower ribs
humerus

Question 18

serratus anterior

Answer 18

protraction of scapula

ribs
scapula

Question 19

levator scapulae

Answer 19

retracts and elevates scapula

c1-c4 vertebrae
scapula