Flashcards in PPT 1 - Spine Deck (67)
Spinal Column AKA...
Spinal Column consists of ___ parts
A Child 8 years or less has ___ segments
24 spine (same as adult)
5 sacrum (not fused)123rd
4 coccyx (not fused)
An adult has ___ segments
First 3 Sacrum Segments Fuse when?
Between the ages of 9-11 (late childhood)
Lower 3 sacrum segments fuse together when?
18-20 (early adulthood)
Coccyx Fuses when?
One segment ossified every 5 years and becomes one bone between 25-30yo
Cervical spine consists of ____ individual segments
It is the upper segment of the spine
Thoracic spine has ____ individual segments
It is the middle section of the spine
The Lumbar Spine consists of _____ individual segments
Lower segment of the back
Average length of the adult male spine
Average length of the female adult spine
The discs are ______% of the height of the vertebral column
Discs - cushion between the discs
Spinal Column segments are divided into two types. They are...
True segments &
True Segments are defined as...
Segments that are freely movable in an adult
False Segments are describes as...
Segments that are not freely moveable in an adult spine
Segments that are true are...
The 24 segments of the spine (thoracic, cervical, and lumbar)
Segments that are false are...
The sacrum and the coccyx
Typical characteristics of cervical vertebra
-2 heads on the spinous process
-holes in the transverse process (TVP)
-shapes like an oval or rectangle
The spine has the following ranges of motion...
Flexion, extension, rotation, and lateral flexion
Characteristics of a typical thoracic vertebra
-costal facet (indentations)on transverse process (TVP)
-demifacets(indentations where the ribs connect)
Characteristics of the lumbar vertebra
-4 facet joints
A typical spinal vertebra is divided into 2 basic parts. They are...
1. Anterior (the vertebral body)
2. Posterior (vertebral arch, posterior arch, dorsal arch, neural arch, and spinal arch)
The arch of a vertebra is made up of...
2 Pedicles (vertical)
2 Laminae (horizontal)
The purpose of the arch is to...
Support the 7 processes
(1 spinous, 2 transverse, 4 articulation process)
The anterior vertebral arch is comprised of...
The posterior vertebral arch is comprised of...
Pedicles, Latina, and processes
Vertebral foremen, when stacked together form the...
What is the purpose of the vertebral foramen?
It allows the spinal cord to run through the spine