6G-THE VERTEBRAL COLUMN: INTERVERTEBRAL DISCS Flashcards
INTERVERTEBRAL DISCS Definition
The intervertebral discs are _________ discs that sit ________successive vertebrae
fibrocartilage
between
Intervertebral discs are comprised of?
the annulus fibrosus
the nucleus pulposes
the annulus fibrosus
the nucleus pulposes
are comprised of an outer fibrocartilage “collar” (the “_______ ______”) and an inner, gel-like material (the “______ _______”)
annulus fibrosus
nucleus pulposes
The discs also provide _____ between vertebrae during weight bearing
padding
In total, the intervertebral discs account for approximately ___ percent of your body height between the top of the pelvis and the base of the skull
25
Intervertebral discs are flexible?
yes
ith increasing age, the water content of the nucleus pulposus gradually ______ This causes the disc to become thinner, decreasing total body height somewhat, and reduces the flexibility and range of motion of the disc, making _____ more difficult
declines
bending
The gel-like nature of the nucleus pulposus also allows the intervertebral disc to change _____
shape
bending forward causes compression of the _____ portion of the disc but _____of the posterior disc
anterior
expansion
bending forward causes compression of the _____ portion of the disc but _____of the posterior disc
anterior
expansion
If the posterior anulus fibrosus is weakened (throwing back out orl ong periods of sitting) this can result in a _____ _______
herniated disc
Sometimes, the intervertebral disc is compared to a ____ _____, and a herniated disc is described as the jelly portion of the donut ______ out of the dough
jelly donut
squishing
The posterior bulging of the nucleus pulposus can cause?
compression of spinal nerve = pain
The most common sites for disc herniation are?
L4/L5 or L5/S1
sciatica is?
a widespread pain that radiates from the lower back down the thigh and into the leg. resulting form disc herniation