Flashcards in 1/19/2016 Spinal Questions Deck (14):
Which are the largest spinal nerves?
L5 and S1 spinal nerves
What increases the length of the intervertebral foramen at L5?
The lumbosacral tunnel
What form the lumbosacral tunnel?
The lumbosacral ligament, transverse process of L5 and sacral ala
What condition is the result of encroachment on the L5 spinal nerve?
The far out syndrome
What ligament may contribute to the loss of size in the lumbar intervertebral foramen?
The transforaminal ligament
What is the relationship between intervertebral disc herniation and lumbar spinal nerves?
The intervertebral disc above the intervertebral foramen is usually the source of damage
What is unusual about the sacral intervertebral foramen compared to other intervertebral foramina?
A completely osseous boundary exists
What is more likely the cause of nerve irritation at the sacral intervertebral foramen?
The tilt or position of the entire sacrum relative to the pelvis
What is the relationship of lumbar nerve root size to intervertebral foramen size above L4?
The nerve root size will account for less than 22% of the available size
What is unique about the relationship of spinal nerve to intervertebral foramen at S5-Co1?
There are two nerves present, S5 nerve & Co1 nerve
What are some examples of destructive lesions of the vertebral body?
Tuberculosis, hemangiomas, osteoporosis
What are examples of osteopath formation that influence the intervertebral foramen?
The bony Spurs of the vertebral body and para-articular processes on the lamina
What are examples of acquired alterations of the spinal curves identified in class?
Obesity, pregnancy and the use of heavy backpacks