Cx Suboccipital Extensor Muscles Flashcards
Name the 4 sub occipital muscles
Rectus capitis posterior major
Rectus capitis posterior minor
Obliquus capitis superior
Obliquus capitis inferior
What do the sub occipital muscles connect
C1, C2 & occiput
What does each of the sub occipital muscles connect
RCP Major = C2 - occiput
RCP Minor = C1-occiput
OCS = C1 - occiput
OCI = C2 - C1
What nerve indicates al the suboccipital muscles
Posterior rami C1
What actions do to Rectus capitis posterior major do
Bilateral = extends the head
Unilateral = ipsilateral rotation of the head
What actions do the Rectus capitis posterior minor do
Extends the head
What actions do the obliquus capitis superior do
Unilateral = ipsilateral rotation
What actions do the obliquus capitis inferior do
Unilateral = ipsilateral rotation
