What is the lumbar region of the spine?
lower back
The lumbar region of the spine, more commonly known as the lower back, consists of five vertebrae labeled L1 through L5. The lumbar region is situated between the thoracic, or chest, region of the spine, and the sacrum. The lumbar spine typically has a slight inward curve known as lordosis.
What does the lumbar spine consist of?
The lumbar spine consists of 5 moveable vertebrae numbered L1-L5. The complex anatomy of the lumbar spine is a remarkable combination of these strong vertebrae, multiple bony elements linked by joint capsules, and flexible ligaments/tendons, large muscles, and highly sensitive nerves.
What is the surface anatomy of the spinal cord?
The spinal cord is marked by two depressions on its surface. The anterior median fissure is a deep groove extending the length of the anterior surface of the spinal cord. On the posterior aspect there is a slightly shallower depression – the posterior median sulcus.
What are lumbar spine muscles?
Extensor, Flexor and Oblique Muscles and Back Pain The extensor muscles are attached to back of the spine and enable standing and lifting objects. These muscles include the large paired muscles in the lower back, called erector spinae, which help hold up the spine, and gluteal muscles.
What organs are in the lumbar region?
The right lumbar region consists of the gallbladder, the left kidney, part of the liver, and the ascending colon.
What part of the body is lumbar?
Lumbar (lower back): Five vertebrae (L1 to L5) make up the lower part of the spine. Your lumbar spine supports the upper parts of the spine. It connects to the pelvis and bears most of your body’s weight, as well as the stress of lifting and carrying items. Many back problems occur in the lumbar spine.
What is flexion of the lumbar spine?
Flexion is the anatomical name for forward bending. When treating back pain, many spine specialists encourage exercises to strengthen the muscles that act to bring the spine into flexion. In the lower back, approximately 50% of flexion occurs at the hips, and 50% occurs at the lower spine.
What are two functions of spinal cord?
The main functions of the spinal cord are:
- To conduct reflexes below the neck.
- To conduct messages from the skin and muscles to the brain.
- To conduct commands from the brain to muscles of the trunk and limbs.
What are the two parts of spinal cord?
The spinal cord is divided into four different regions: the cervical, thoracic, lumbar and sacral regions (Figure 3.1).
What is the function of the lumbar spine?
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