Difference Between Cervical Thoracic And Lumbar Vertebrae Table – A basic understanding of spinal anatomy and function is essential for patients with spinal disorders. This article provides a first-hand overview of the amazing and complex anatomy of the spine. It begins by providing the “big picture” of the spinal function, its area, and the main curve. This is followed by detailed information on specific anatomical elements such as the vertebral structure, intervertebral discs, spine and nerve roots, joints, muscles and ligaments.

Typically, the spine is divided into four main areas: cervical, thoracic, lumbar and sacral. Each area has certain characteristics and functions.

Difference Between Cervical Thoracic And Lumbar Vertebrae Table

The neck region of the spine is known as the Cervical Spine. This area consists of seven vertebrae, which are abbreviated C1 through C7 (top to bottom). These vertebrae protect the brain stem and spinal cord, support the skull, and allow for various head movements.

Thoracic Biomechanics And Somatic Dysfunction (part 1) Flashcards

The first cervical vertebra (C1) is called the Atlas. The atlas forms a ring and supports the skull. C2 is called Axis. It is circular in shape with a blunt peg-like structure (called the Odontoid Process or “dens”) that projects upward into the Atlas ring. Together, Atlas and Axis enable the head to rotate and turn. The other cervical vertebrae (C3 through C7) are round-shaped with small spinous processes (finger-like projections) that extend from the back of the vertebrae.

Below the last cervical vertebrae there are 12 vertebrae of the Thoracic spine. It is abbreviated T1 through T12 (top to bottom). T1 is the smallest and T12 is the largest thoracic vertebra. Thoracic vertebrae are larger than cervical bones and have longer spinous processes.

In addition to the longer spinous processes, rib attachments add strength to the thoracic spine. This structure makes the thoracic spine more stable than the cervical or lumbar region. In addition, the rib cage and ligament system limit the range of motion of the thoracic spine and protect many vital organs.

The lumbar spine has 5 abbreviated vertebrae L1 through L5 (the largest). The size and shape of each lumbar vertebra is designed to carry most of the body’s weight. Each structural element of the lumbar vertebra is larger, wider and wider than similar components in the cervical and thoracic regions.

Chapter 7: Cervical Vertebrae Diagram

The lumbar spine has more range of motion than the thoracic spine, but less than the cervical spine. The lumbar facet joints allow for significant flexion and extension movements but limit rotation.

The sacrum is located behind the pelvis. Five bones (abbreviated as S1 to S5) unite to form a triangle, forming the sacrum. The sacrum fits between the two hipbones connecting the spine and the pelvis. The last lumbar vertebra (L5) articulates (moves) with the sacrum. Directly below the sacrum are five additional bones, fused together to form the Coccyx (tailbone).

Although not commonly seen as part of the spine, the pelvis and skull are anatomical structures that are closely related to the spine, and have a significant impact on the patient’s balance.

To help better understand and explain anatomy, spine specialists often refer to specific body planes. A body plane is an imaginary flat two-dimensional surface that is used to define certain anatomical regions.

Optimal End Level For Long Segment Cervical Fusion To The Thoracic Spine?

When seen from the front (Coronal Plane) the spine is straight. (A sideways curve in the spine is known as scoliosis.) When viewed from the side (Sagittal Plane) the mature spine has four different curves. This curve is described as kyphotic or lordotic.

A kyphotic curve is a convex curve in the spine (ie convexity towards the back of the spine). The curves in the thoracic and sacral spine are kyphotic.

The lordotic curve is concave (that is the concavity towards the back of the spine), and is found at the cervical and lumbar levels of the spine.

The outer shell of the vertebrae is made of cortical bone. This type of bone is dense, dense and strong. Inside each vertebra there is cancellous bone, which is weaker than cortical bone and consists of a loosely knit structure that looks a bit like a honeycomb. Bone marrow, which forms red blood cells and some types of white blood cells, is found in cancellous bone cavities.

Human Nervous System

The 4 articular processes connect with the articular processes of adjacent vertebrae to form facet joints. The facet joints, combined with the intervertebral discs, allow for movement in the spine.

The spinous process extends posteriorly from the point where the two laminae join, and acts as a lever to influence the movement of the vertebrae.

The joints in the spinal column are located posterior to the vertebral body (on the back). These joints help the spine to bend, twist, and extend in different directions. Although these joints enable movement, they also limit excessive movement such as hyperextension and hyper-flexion (ie whiplash).

Each vertebrae has two facet joints. The superior articular facet faces upward and works like a hinge with the inferior (lower) articular facet.

Solved Rt B: Assessments Based On Your Observations, Compare

Like other joints in the body, each facet joint is surrounded by a capsule of connective tissue and produces synovial fluid to nourish and lubricate the joint. Joint surfaces are lined with cartilage that helps each joint to move (articulate) smoothly.

Between each vertebral body is a “cushion” called an intervertebral disc. Each disc absorbs the stress and shock of the body during movement and prevents the vertebrae from grinding against each other. The intervertebral disc is the largest structure in the body without a vascular supply. Through osmosis, each disc absorbs the necessary nutrients.

The annulus is a strong tire-like structure that includes a gel-like center, the nucleus pulposus. The annulus improves the rotational stability of the spine and helps resist compression stress.

The annulus consists of water and a layer of strong elastic collagen fibers. The fibers are oriented at different angles horizontally similar to radial tire construction. Collagen gets its strength from the strong fibrous protein bonds that bind it together.

Antr 350 Lecture Notes

The center of each intervertebral disc is filled with an elastic gel-like substance. Along with the annulus fibrosus, the nucleus pulposus transmits stress and weight from vertebra to vertebra. Like the annulus fibrosus, the nucleus pulposus is composed of water, collagen and proteoglycans. However, the proportion of this substance in the nucleus pulposus is different. The core contains more water than the annulus.

The spine is a slender cylindrical structure about the width of the little finger. The spinal cord begins directly below the brain stem and extends to the first lumbar vertebra (L1). Next, it joins with the conus medullaris which becomes the cauda equina, a bundle of nerves resembling a horse’s tail. Spinal nerve roots are responsible for stimulating movement and feeling. Nerve roots exit the spinal canal through the intervertebral foramen, a small opening between each vertebra.

The brain and spinal cord make up the Central Nervous System (CNS). The nerve roots that come out of the spine / spinal canal branch out into the body to form the Peripheral Nervous System (PNS).

Between the front and back of the vertebrae (that is, the middle area) is the spinal canal that houses the spinal cord and the intervertebral foramen. Foramen is a small opening formed between each vertebrae. This “hole” provides space for the nerve roots to exit the spinal canal and then branch out to form the peripheral nervous system.

Solved 3. Complete The Following Table By Describing The

Ligaments and tendons are fibrous bands of connective tissue that attach to bones. Ligaments connect two or more bones together and also help to stabilize the joint. Tendons attach muscles to bones. They come in various sizes and are quite elastic.

The ligament system in the vertebral column, combined with tendons and muscles, provides a natural type of support to help protect the spine from injury. Ligaments keep joints stable during rest and movement. Furthermore, ligaments help to prevent injury from hyper-extension and flexion movements.

About an inch wide, which ALL runs the entire length of the spine from the base of the skull to the sacrum. It connects the front (anterior) of the vertebral body to the front of the annulus fibrosis.

About an inch wide, the PLL runs the entire length of the spine from the base of the skull to the sacrum. Connects the back (posterior) of the vertebral body to the back of the annulus fibrosis.

Vertebral Column: Anatomy

This thin ligament attaches to another ligament, called ligamentum flavum, which runs deep into the spinal column.

This yellow ligament is the strongest. It runs from the base of the skull to the pelvis, front and back of the lamina, and protects the spine and nerves. The ligamentum flavum also surrounds the capsule of the facet joint.

The muscular system of the spine is complex, with several different muscles playing an important role. The main function of the muscles is to support and stabilize the spine. Specific muscles relate to the movement of parts of the anatomy. For example, the Sternocleidomastoid muscle helps with head movement, while the Psoas Major muscle is associated with thigh flexion.

Muscles, either individually or in groups, are supported by fascia. Fascia is a strong connective tissue. The tendon that attaches the muscle to the bone is part of

Solved] Based On The Observations, Compare Typical Cervical, Thoracic, And…

Metastatic lesions in thoracic and lumbar vertebrae, how many cervical thoracic and lumbar vertebrae are there, difference between thoracic and lumbar vertebrae, difference between cervical thoracic and lumbar vertebrae, cervical thoracic and lumbar vertebrae, back cervical thoracic lumbar, cervical thoracic lumbar, difference between cervical and thoracic vertebrae, cervical thoracic lumbar vertebrae differences, cervical thoracic and lumbar spine, cervical thoracic lumbar sacral orthosis, cervical thoracic lumbar and sacral