What muscles attach to lumbar vertebrae?
Andrew Mclaughlin
Updated on May 02, 2026
Lumbar vertebrae provide attachment points for numerous muscles: erector spinae, interspinales, intertransversarii, latissimus dorsi, rotatores, and serratus posterior inferior.
What muscles attach to the vertebrae?
Thoracic vertebrae provide attachment points for numerous muscles: erector spinae, interspinales, intertransversarii, latissimus dorsi, multifidus, rhomboid major, rhomboid minor, rotatores, semispinalis, serratus posterior superior/inferior, splenius capitis, splenius cervicis, and trapezius.
Where are the lumbar muscles?
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. The lower back region contains large muscles that support the back and allow for movement in the trunk of the body.
What part of body is lumber?
In tetrapod anatomy, lumbar is an adjective that means of or pertaining to the abdominal segment of the torso, between the diaphragm and the sacrum. The lumbar region is sometimes referred to as the lower spine, or as an area of the back in its proximity.
What are the muscles and actions of the muscles of the lumbar spine?
Spinal Muscles: A Comprehensive Guide
| LUMBAR MUSCLES | FUNCTION |
|---|---|
| Intertransversarii Mediales | Lateral flexion of vertebral column |
| Multifidus | Extends & rotates vertebral column |
| Longissimus Lumborum | Extends & rotates vertebral column |
| Iliocostalis Lumborum | Extension, lateral flexion of vertebral column, rib rotation |
What muscles attach to l4 and L5?
There are paired muscles located between the spinous processes of adjacent vertebrae; subdivided into cervical, thoracic, and lumbar muscles. The interspinale muscles are short bands of muscle fibers including the interspinales cervicis, interspinales thoracis, and interspinales lumborum muscles.
Which muscles fill the lamina groove of the thoracic and lumbar vertebrae?
Multifidus Lumborum, Thoracis, and Cervicis Muscles The multifidus muscles lie deep to the semispinalis muscles, where they fill the groove between the transverse and spinous processes of the vertebrae.
What muscles attach to T7?
The trapezius and latissimus dorsi muscles of the back attach to the T7 at its spinous process. The T7 vertebra also plays an important role in the protection of the spinal cord.
What is the multifidus muscle?
A thin strip of tissue, the multifidus muscle starts at the sacral bone at the base of the spine and extends up to the axis, which is commonly referred to as the second cervical vertebra, or C2. The muscle features multiple insertion points along the spine, specifically into the spinous process of each vertebra.
What is the lumbar vertebrae made of?
Lumbar Vertebrae. The lumbar vertebrae consist of five individual cylindrical bones that form the spine in the lower back. These vertebrae carry all of the upper body’s weight while providing flexibility and movement to the trunk region.
What are the different muscles of the lumbar spine?
Important muscles of the lumbar spine include: Multifidus: This long muscle travels nearly the entire length of the back. It stabilizes and rotates the lumbar spine. Longissimus: Another long muscle, this one begins in the middle of the lumbar spine and continues up to the transverse process.
What is the lumbo sacral spine made of?
Throughout the spine, intervertebral discs made of cushioning material both pad and connect the vertebrae. The lumbo-sacral spine includes: Lumbar vertebrae: Numbered L1 through L5, these odd-shaped vertebrae signal the end of the typical bones of the spinal column.
What is the shape of the lumbar spine?
The lumbar spine has a lordotic curve. This shape is like a backward C. Moreover, the vertebrae in the lumbar spine are the largest in the whole spine(5). Thus, the lumbar canal is larger than the cervical or thoracic parts of the spine. Given its size, the lumbar spine allows more space for the nerves to move about(6).
