Anatomical Terminology Flashcards
ala sacralis
the wing-like upper part of each lateral mass of the sacrum as viewed from above
in latin, ala is wing
annulus fibrosis
outer part of the intervertebral disc surrounding the nucleus pulposus made up of rings of collagen fibers arranged in layers,
anterior arch
the section of the vertebra consisting of the vertebral body and the anterior third of the pedicles
anterior longitudinal ligament
(ALL) Thick, longitudinally oriented ligamentous fibers connecting the anterior surfaces of the vertebral bodies from C2 to the sacrum
aorta
the main vessel of the arterial system
apophyseal ring
the ring of cortical bone surrounding the vertebral body beneath the endplate
apophysis
an outgrowth or projection especially from a bone
A bony process or outgrowth that lacks an independent center of ossification
articular
relating to a joint
atlantoaxial joint
the joint at which the atlas C1 articulates with the axis C2
The odontoid process of C2 acts as a pivot point for the rotation of C1
Atlas
the first cervical vertebra C1
named after the mythological figure Atlas because it supports the “globe”
autogenous
self producing from within the body
axis
the second cervical vertebra C2
the pivot point for the atlas
cancellous bone
porous loosely knit bone similar in structure to a sponge
cauda equina
bundle of spinal nerves and spinal nerve rootlets extending from the conus medullaris into the vertebral canal below L1
latin: cauda tail and equus horse, horse’s tail
central nervous system
the primary part of the nervous system composed of the brain and spinal cord