Muscles Producing Movement of Cervical Intervertebral Joints

Question 0

Cervical IV Joints flexion limiting structures?

Answer 0

Ligaments - posterior atlanto-axial, posterior longitudinal, flavum, tectorial membrane
Posterior neck muscles
Anulus fibrosus (tension posteriorly)

Question 1

Muscles producing flexion of Cervical IV Joints?

Answer 1

Bilateral action of longus coli, scalene, SCM

Question 2

Muscles producing extension of cervical IV joints?

Answer 2

Bilateral action of deep neck muscles - semispinalis cervicis and iliocostalis cervicis, splenius cervicis and levator scapulae, splenius capitis, multifidus, longissimus capitis, semispinalis capitis, trapezius

Question 3

Cervical IV Joint extension limiting structures?

Answer 3

Ligaments - anterior longitudinal, anterior atlanto-axial
Anterior neck muscles
Anulus fibrosis  (tension anteriorly)
Spinous processes (contact between adjacent processes)

Question 4

Muscles of Cervical IV Joint Lateral Bending?

Answer 4

Unilateral action of : iliocostalis cervicis, longissimus capitis and cervicis, splenius capitis, splenius cervicis, intertransversarii and scalenes

Question 5

Lateral Bending Cervical IV Joint limiting structures?

Answer 5

Ligaments - alar ligament tension limits movement to contralateral side
Anulus fibrosus (tension anteriorly), zygapophysial joints

Question 6

Muscles of Cervical IV Joints Rotation?

Answer 6

Ipsilateral action of: rotatores, semispinalis capitis and cervicis, multifidus, splenius cervicis
Contralateral action of : SCM

Question 7

Limiting Structures of Cervical IV Joint rotation?

Answer 7

Ligaments : alar ligament tension limits movement to ipsilateral side
Anulus fibrosus