What limits lumbar flexion?
The iliolumbar ligaments play an important role in the stability of the lumbosacral junction by restricting both side flexion and rotational movement at the L5–S1 joint and forward sliding of L5 on the sacrum.
What limits spinal motion in the thoracic region?
In addition, the rib cage and ligament system limit the thoracic spine’s range of motion and protects many vital organs.
What is the primary limiting factor of movement of the thoracic spine?
Thoracic spine function has huge carryover to other areas of the body. Lack of functional capacity in the thoracic spine is one of the most common limiting factors for most people.
Why is movement limited in the lumbar spine?
Because of the more sagittal slope of the articular surfaces, very little rotation takes place at the four upper lumbar levels. More distally, at the lumbosacral level, the joint line has a more coronal plane, which makes rotational movements potentially possible, but these are limited by the iliolumbar ligaments.
What area of the spine has the most rotation?
Lateral flexion is free at the atlanto-occipital joint, cervical and lumbar spine, but less free in the thoracic spine. Rotation is greatest at the specialized atlantoaxial articulations, and to a lesser degree in the cervical and lumbar spine.
Which spinal nerves affect which parts of the body?
The nerves of the cervical spine go to the upper chest and arms. The nerves in your thoracic spine go to your chest and abdomen. The nerves of the lumbar spine then reach to your legs, bowel, and bladder. These nerves coordinate and control all the body’s organs and parts, and let you control your muscles.
What are the different areas of the spine called?
The spine is composed of 33 bones, called vertebrae, divided into five sections: the cervical, thoracic, and lumbar spine sections, and the sacrum and coccyx bones.
What are the primary and secondary curvatures of the spine?
The vertebral column is curved, with two primary curvatures (thoracic and sacrococcygeal curves) and two secondary curvatures (cervical and lumbar curves).
What are the six movements of the spine?
Here we take the spine through its six main movements: Flexion, Extension, Rotation right and left, Lateral flexion right and left. We begin sitting, move to all fours and end standing, enjoying the different ranges of movement offered in each position. This is an excellent practice for first thing in the morning.