Transversus Spinalis Group Flashcards
The transversus spinalis group runs from ______________ to _______________ above
run from TRANSVERSE PROCESSES to SPINOUS PROCESSES above
What direction do the muscle fibres of the transversus spinalis group run?
oblique in direction
Is the transversus spinalis group deep or superficial to the erector spinae group?
deep
What are the primary actions of the transversus spinalus group?
extensors and rotators of the spine
What muscles does the transversus spinalis group contain?
semispinalis capitis, semispinalis cervicis, semispinalis thoracis, multifidus, rotatores
What are the three semispinalis muscles?
capitis, cervicis, thoracis
Where does the semispinais capitis run from?
C4-T7 to occipital bone
Where does the semispinalis cervicis run from?
T1-T5 to C1-C5
Where does the semispinalis thoracis run from?
T6-T10 to C6-T4
What is the origin of the multifidus muscles?
sacrum, ilium and TP of lumbar vertebrae, thoracic vertebrae and C4-C7
What is the insertion of the multifidus muscles?
SP of a more superior vertebrae
What muscle group is arranged along the whole extension of the VC?
rotatores
Where does the rotatores muscles extend from?
TP of one vertebra to the lamina of superior vertebrae two or three segments above
Which muscle group is the main postural muscles?
segmental
What are the deepest located muscles of the back?
segmental
How does the segmental muscles stabilize the VC?
by locking the vertbrae to each other
The segmental muscles unite the ________ and ________ of consecutive ______________
the segmental muscles unite the SP and TP of consecutive ADJACENT VERTEBRAE
What muscles are included in the segmental muscles?
intertransversarii and interspinales
Where are the scalene muscles located?
posterior triangle of the neck
What is the origin of the scalene muscles?
extended from the TP of C2-C7
What muscles are included in the scalene muscles?
anterior, middle, posterior
Where does the anterior and middle scalene insert?
first rib
Where does the posterior scalene insert?
second rib
What are the actions of the scalene muscles?
flex head, elevate ribs during forced inhalation, lat flex of head, rotation of head
