What are 3 vertebral column functions?
The vertebral column provides attachments to muscles, supports the trunk, protects the spinal cord and nerve roots and serves as a site for haemopoiesis.
What are the 3 sections of the vertebral column?
The spine has three normal curves: cervical, thoracic and lumbar. There are seven cervical vertebrae in the neck, 12 thoracic vertebrae in the torso and five lumbar vertebrae in the lower back.
What is a 3 column injury?
When the anterior and middle columns are involved, the fracture may be considered more unstable. When all three columns are involved, the fracture is by definition considered unstable, because of the loss of the integrity of the posterior stabilizing ligaments.
Why spinal column is important for human movement?
It allows you to move about freely and to bend with flexibility. The spine is also designed to protect your spinal cord. The spinal cord is a column of nerves that connects your brain with the rest of your body, allowing you to control your movements.
What are the characteristics of the vertebral column?
The vertebral column is curved, with two primary curvatures (thoracic and sacrococcygeal curves) and two secondary curvatures (cervical and lumbar curves).
What nerves does L3 affect?
The L3 dermatome is an area of skin that receives sensations through the L3 spinal nerve and includes the front part of the thigh and inner part of the leg. The L3 myotome is a group of muscles controlled by the L3 spinal nerve and includes parts of specific muscles in the hip, thigh, and leg.
What is the vertebral column?
(ver-TEE-brul KAH-lum) The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone. The vertebral column encloses the spinal cord and the fluid surrounding the spinal cord. Also called backbone, spinal column, and spine. Enlarge.
What is Brown Séquard syndrome?
Brown-Séquard syndrome is a rare spinal disorder that results from an injury to one side of the spinal cord in which the spinal cord is damaged but is not severed completely. It is usually caused by an injury to the spine in the region of the neck or back.
Which body organ is protected by spinal column?
The spinal cord
The spinal cord, a pathway for messages between the brain and the body, is protected by the backbone, or spinal column. The ribs form a cage that shelters the heart and lungs, and the pelvis helps protect the bladder, part of the intestines, and in women, the reproductive organs.
What are 3 differences between cervical and thoracic vertebrae?
Spinous process, laminae, facets, transverse process, foramina, and the vertical body are the main structural components of typical vertebrae. The main difference between cervical and thoracic vertebrae is that the cervical vertebrae are small whereas thoracic vertebrae are comparatively large.
What are the symptoms of L3 nerve damage?
When the L3 spinal nerve is involved, the following symptoms may occur: Sharp pain, typically felt as a shooting and/or burning feeling that may occur in the thigh and/or inner part of the leg. Numbness in the thigh and/or inner part of the leg. Weakness while moving the thigh and/or knee in different directions.
What does the L3 nerve root control?
L2, L3, and L4 spinal nerves provide sensation to the front part of the thigh and inner side of the lower leg. These nerves also control movements of the hip and knee muscles.
Why is the vertebral column divided into 3 columns?
Denis divided the vertebral column into 3 vertical parallel columns based on biomechanical studies related to stability following traumatic injury. Instability occurs when injuries affect 2 contiguous columns (i.e. anterior and middle column or middle and posterior column). Obviously a 3 column injury is also unstable.
What is the theory of constraints?
The theory of constraints was first introduced in The Goal, a work of fiction written by Eliyahu M. Goldratt. Though it’s fictional, the book focuses on bottlenecks during manufacturing and operations management processes and suggests the theory of constraints as the biggest limiting factor preventing companies from achieving their goals.
Can the three column concept be applied to the lower cervical spine?
While the three-column concept was initially developed for classification of thoracolumbar spinal fractures, it can also be applied to the lower cervical spine 3 as the general vertebral anatomy is similar to the thoracic and lumbar vertebrae.
What is instability of the vertebral column?
Instability occurs when injuries affect 2 contiguous columns (i.e. anterior and middle column or middle and posterior column). Obvious a 3 column injury is unstable. The three columns are: anterior column anterior longitudinal ligament (ALL) anterior two-thirds of the vertebral body. anterior two-thirds of the intervertebral disc (annulus fibrosus)