Back Flashcards
what is the vertebral column made up of
vertebrae and the IV disc
what is the vertebral arch
this is posterior to the vertebral body and consists of two ( right and left) lamina and pedicles
what is a lamina
this is between the spinous process and the transverse processes
What is the pedicle
between the body and the transverse process
on the C6 what is the anteriro tubercle called
carotid tubercles
what is the C7 vertebra called
vertebra promines
what is the anulus fibrossu
is a bulging fibrous ring consisting of concentric lamellae of fibrocartilage forming the circumference of the IV disc and only the outer 1/3 receives sensory innervation
what is the nucleus pulposus
this is the cord of the disc and is semifluid allows for flexibility and resilience of the disc and column
what is a synovial joint
2 inferior and superior articular processes
what is symphyses
between the disc and bodies
- secondary cartilagenous joint
- connect by the anterior and posterior ligaments
what are uncovertebral joints
develop between the unci of the bodies ( c3-c7 )
- they articulate w/ vertebral bodies superior to them
- ALLOW flexion extension and limits excessive flexion
what are zygapophysial joint
- they are the plane synovial joints that happen between the superior and inferior articular
- they help prevent adjacent vertbra from slipping
- and allow gliding
- can also bare weight
what are the zygapophysial joint inverated by
the articular branch of dorsal rami of spine n. that come from the medial branches of the posterior rami that innervate each joint by 2 adjacent joints
what is the atlanto occipital joint
the articulations between the superior articular surfaces of the lateral masses fo the c1 and the occipital condyles
what does the atlanto occipital joints allow?
permit nodding of the head
what help connect the atlanto occipital joints?
Anterior and posterior atlanto-occipital membranes! which connect to the anterior and posterior arches of c1 to the ant. and posterior foramen magnum. HELP prevent excessive movement
what are the anterior and posterior membranes of the atlanto occiptial made up of
Ant= broad adn densely woven fibers post= broad but weak
what is the atlanto axial joint
- between the c1 and c2
- 3 articlulations ( 2 lateral masses and 1 medial )
what is the tectorial membrane
is the strong superior continuation of the posterior longitudinal ligament that broadens and passes posterior over the medial atlanto axial joint and its ligament
what is the anterior longitudinal ligament
this is a strong broad fibrous band that covers and connect the anterolateral aspect of the vertebral bodies and the IV discs
= extents from the sacrum to the anterior tubercle of the c1 and occipital bone anterior to the foramen magnum
–PREVENTS hyperextension
what is the posterior longitudinal ligament
this runs in the within the vertebral canal on the posterior aspect of the bodies from c2 to sacrum
- -attached to the IV discs
- PREVENTS hyperflexion
what are the ligamentum flava
laminae of adjacent ertebral arches are joined by broad pale yellow bands of elastic tissue.
- run from the lamina above to the lamina below
- resist separation of the vertebral lamina by limiting flexion and help keep the back curves
what is the supraspinous ligament
connects the tips of the spinous processes form c7 to the sacrum and merge superiorly with the nuchal ligament