Muscles Producing Intervertebral Joint Movements

Question 0

cervical extension

Answer 0

bilateral action of:
	semispinalis cervicis/capitis
	iliocostalis cervicis
	splenius cervicis/capitis
	levator scapulae
	multifidus	
	longissimus capitis
	trapezius

Question 1

cervical flexion

Answer 1

bilateral action of:
longus colli
scalene
SCM

Question 2

cervical lateral flexion

Answer 2

unilateral action of:
	iliocostalis cervicis
	longissimus capitis/cervicis
	splenius capitis/cervicis 
	scalenes

Question 3

cervical rotation

Answer 3

ipsilateral action of:
	rotators
	semispinalis cervicis/capitis
	multifidus
	splenius cervicis

contralateral action of:
SCM

Question 4

thoracic and lumbar flexion

Answer 4

bilateral action of:
rectus abdominis
psoas major
gravity

Question 5

thoracic and lumbar extension

Answer 5

bilateral action of:
erector spinae
multifidus
semispinalis thoracis

Question 6

thoracic and lumbar lateral flexion

Answer 6

unilateral action of:
	iliocostalis thoracis and lumborum
	longissimus thoracis
	multifidus
	ext and int oblique
	quadratus lumborum
	rhomboids
	serratus anterior