Lower Spine Anatomy

The lower the vertebra is in the spinal column the more weight it must bear. Although the entire spine is involved in everyday activities of rest and movement the low back can be vulnerable to many pain provoking disorders.

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The lumbar spine makes up the the lower end of the spinal column.

Lower spine anatomy. The lower back which starts below the ribcage is called the lumbar region. The lumbar region of the spine more commonly known as the lower back is situated between the thoracic or chest region of the spine and the sacrum. Cervical neck thoracic upper and middle back lumbar lower back and sacrum tailbone.

The lumbar spine consists of 5 moveable vertebrae numbered l1 l5. The muscles of the lower back help stabilize rotate flex and extend the spinal column which is a bony tower of 24 vertebrae that gives the body structure and houses the spinal cord. It consists of 5 lumbar vertebra that are numbered 1 through 5 from top to bottom ie.

Understanding lower back anatomy is key to understanding the root of lower back and hip painthe human spine is composed of 4 sections of vertebrae. Lower back muscle anatomy and low back pain. Lumbar spine anatomy video.

The five vertebrae of the lumbar spine l1 l5 are the biggest unfused vertebrae in the spinal column enabling them to support the weight of the entire torso. The lumbar spine the lower back composed of five vertebrae. Pain here can be intense and is one of the top causes of missed work.

Simple sprains and strains from overexertion a herniated disc from a slip and fall degenerative disc disease or spinal stenosis from normal aging and other disorders can cause low back pain. The lumbar spines lowest two spinal segments l4 l5 and l5 s1. An inside look at the structure of the back.

Found along the bodys midline in the lumbar lower back region the lumbar vertebrae make up the region of the spine inferior to the thoracic vertebrae in the thorax and superior to the sacrum and coccyx in the pelvis. The l5 vertebra is connected to the top of the sacrum named the s1 segment through an intervertebral disc. The complex anatomy of the lumbar spine is a remarkable combination of these strong vertebrae multiple bony elements linked by joint capsules and flexible ligamentstendons large muscles and highly sensitive nerves.

Fortunately low back pain often gets better on. L1 l2 l3 l4 and l5. It also has a complicated innervation and vascular supply.

The cervical spine supports the weight and movement of your head and protects the nerves exiting your brain. The cervical spine the neck and upper back composed of the seven vertebrae closest to the skull. Lumbar spine anatomy and pain.

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