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Anatomy Explained

Explanations of the underlying anatomy of spinal conditions can help you to understand a doctor's diagnosis.

Multifidus Back Muscle - Unique Design Offers Spinal Stability

Research on the design and work of the multifidus muscle reveals it is the strongest back muscle.

Parts of a Vertebra

The vertebra is a singular bone of the spine. Back pain diagnosis often includes the name of the part of the vertebra that is involved in causing the pain. Learn about the parts of a vertebra.

The 6 Abdominal Muscles

The abdominal muscles have gotten a lot of press in the last few years, due in part to the increasing popularity of core stabilization exercises. What are the ab muscles, what do they do and where are they located? This Anatomy Explained will explain the 6 abdominal muscles fromthe transverse abdominus, to the obliques to the rectus abdominus.

Skeleton

The purpose of the skeleton is to protect organs, provide support and balance and to provide a place for muscles to attach, thereby powering the body in movement. Fitting for Halloween, get the skeleton out of the closet and let's examine the bones!

The Lumbosacral Joint or L5-S1

The Lumbosacral Joint or L5-S1 is where the lumbar spine meets the sacrum, and is the site of an injury called spondylolthesis.

Lumbar Spine

The lumbar spine is the site of many back injuries. Some basic understanding about the structure and function of the lower back may help to interpret a doctor's diagnosis of low back pain.

The Intervertebral Disk

Anatomy of a vertebra and intervertebral disks are described to show how the spinal bones support weight, absorb shock and require special care to remain nourished and healthy.

Nerve Roots and Dermatomes

Nerve pain can be the result of a back or neck injury.

Sacrum

Although considered part of the spine, the sacrum is a unique bone, one that is directly related to balance.

Coccyx

Once literally a tail, the small and unassuming coccyx bone is more powerful than you may think!

An Illustration of the Sacrum and Coccyx

About's A.D.A.M. Healthcare Center shows an illustration of the sacrum and coccyx bones.

The Significance of Spinal Curves

Spinal curves (lordosis and kyphosis) are significant.
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