Bones of the Spine & Thorax
How many vertebrae form the vertebral column?
24
What forms the visible row of bumps running down the center of the back?
spinous processes
The erectors lie deep in the lumbar region to what connective tissue structure?
thoracolumbar fascia
In contrast to the erector spinae group, the fibers of the transversospinalis group run in which direction?
diagonal
Which muscles can be outlined by finding the spinous process of C-2, the transverse processes of C-1 and the space between the superior nuchal line and C-2?
suboccipitals
A traumatic blow to the sternum can easily damage the inferior portion of the bone which is the –
Xiphoid process
Which section of the vertebral column is capable of the most movement?
cervical
Which muscles fill the lamina groove of the thoracic and lumbar vertebrae?
transversospinalis muscles and quadratus lumborum
Which movement of the vertebral column would shorten the fibers of the erector spinae muscles?
extension
Which are the only muscles with fibers that lie across the posterior surface of the sacrum?
multifidi
The edge of which muscle is especially useful in locating the suboccipitals?
trapezius
The ribs will ____________ when exhaling deeply.
Depress
The thorax is comprised of which two structures?
ternum and rib cage
What is the name of the superior portion of the sternum?
manubrium
Which of the muscles in the erector spinae group have an attachment on the skull?
longissimus
Which movement of the vertebral column will lengthen the fibers of the multifidi on the right side of the body?
rotation to the right
Which suboccipital muscle does not attach at the occiput?
oblique capitis inferior
A massage therapist needs to be cautious of the _____________ when working deeply into the body’s core.
Abdominal aorta
Which vertebrae can be located at the base of the neck?
C-7
The first rib is deep to which structure along the anterior thorax?
clavicle
To contract the lower fibers of the erector spinae group from a prone position, you could ask your partner to perform what action?
alternately raise and lower feet
The rotatores span between how many vertebrae?
one to two
What is the insertion of the rectus capitis posterior major?
inferior nuchal line of the occiput
Which muscles may aid the diaphragm in breathing efforts?
Intercostals Group
Which bony landmark is often horizontal to the level of the spinous processes of T-2?
superior angle of the scapula
What action could you ask your partner to perform to feel the first rib move?
sternocleidomastoid
When exploring between the scapulae, through which muscle tissue must you palpate to access the erector spinae fibers?
trapezius and rhomboids
Which movement of the vertebral column will shorten the fibers of the semispinalis capitis on the right side of the body?
extension
What of the following is an action of the rectus capitis posterior minor?
rock and tilt the head back into extension
First addressing Spinalis, second addressing Longissimus and third addressing Iliocostalis is working the Erector Spinae group in which order?
Medial to lateral