Structures of Back Flashcards
What are the ligaments of the back? [6]
anterior longitudinal, posterior longitudinal, ligamentum flavum, supraspinous, interspinous, ligamentum nuchae
Where does the anterior longitudinal lig. attach?
to anterior surfaces of vertebral bodies and intervertebral discs
Where does the posterior longitudinal lig. attach?
to posterior surfaces of vertebral bodies and intervertebral discs
Where does the ligamentum flavum attach?
interconnects adjacent laminae
Where does the supraspinous lig. attach?
to apices of spinous processes C7 to sacrum
Where does the interspinous lig. attach?
interconnect adjacent spinous processes
Where does the ligamentum nuchae attach?
from C7 spinous process to external occipital protuberance
What is the function of the anterior longitudinal lig.?
stabilizes vertebral column and prevents hyperextension
What is the function of the posterior longitudinal lig.?
prevents hyperflexion of vertebral column
What are the three parts of the semispinalis?
thoracis, cervicis, capitis
What are the three muscules of the erector spinae?
iliocostalis, longissimus, spinalis
OI: iliocostalis
O: sacrum, lumbar & thoracic supraspinous lig., sacrotuberous lig.
I: costal angles
What are the two major arteries of the back?
thoracic aorta, abdominal aorta
