What is the function of the ligamentum flava?
The function of the ligamentum flavum is to maintain upright posture. It helps to preserve the normal curvature of the spine and to straighten the column after it has been flexed. However, the elasticity of the ligamentum flavum decreases with age, and this may be associated with hypertrophy and buckling.
What is a Flavum?
Description. The ligamenta flavum is a short but thick ligament that connects the laminae of adjacent vertebrae from C2 to S1 and is considered a medial ward continuation of the fact joint .
What is the function of the posterior longitudinal ligament?
The posterior longitudinal ligament connects and stabilizes the bones of the spinal column. It runs almost the entire length of the spine, from the 2nd vertebra in the cervical spine (neck) all the way down to the sacrum (end of the spine). The ligament is adjacent to the spinal cord.
What is the function of the anterior longitudinal ligament?
The role of the ligaments is fundamental in determining the spine biomechanics in physiological and pathological conditions. The anterior longitudinal ligament (ALL) is fundamental in constraining motions especially in the sagittal plane. The ALL also confines the intervertebral discs, preventing herniation.
What does ligamentum flavum attach to?
The ligamentum flavum, the most elastic of the spinal ligaments, connects the laminae of one vertebra to the laminae of the vertebra below it, while laterally it forms the anterior capsule of the facet joint.
What does ligamentum mean?
(lig’ă-mĕnt) [TA] 1. A band or sheet of fibrous tissue connecting two or more bones, cartilages, or other structures, or serving as support for fascias or muscles.
What is the function of the nuchal ligament?
The nuchal ligament limits forward flexion of the head and the cervical spine. It also serves as the attachment for some major muscles.
Where does the ligamentum flavum run?
One of a series of bands of elastic tissue that runs between the lamina from the axis to the sacrum, the ligamentum flavum connects the laminae and fuses with the facet joint capsules. These bands serve as a covering over the spinal canal.
Is ligamentum flavum innervated?
On the microscopic level, its structure is unique for a ligament, because of a predominance of elastic fibers, because of its intrinsic innervation at each level of the spine, and because this innervation grows poorer with increasing degeneration.
What movement does the ligamentum flavum limit?
spinal flexion
Ligamentum Flavum At each vertebral level, fibers originate from a superior lamina (the term superior refers to a location above, relatively speaking) and connect to the inferior lamina (i.e. the lamina just below). The ligamentum flavum limits spinal flexion (bending forward), especially abrupt flexion.
What is Supraspinal ligament?
The supraspinous ligament or supraspinal ligament is a strong fibrous cord that connects together the apices of the spinous processes from the seventh cervical vertebra to 3rd or 4th lumbar vertebrae.
Where is foramen magnum?
The foramen magnum is the largest foramen of the skull. It is located in the most inferior portion of the cranial fossa as a part of the occipital bone.
What is cauda equina?
The cauda equina is the continuation of these nerve roots in the lumbar and sacral region. These nerves send and receive messages to and from the lower limbs and pelvic organs. Cauda equina syndrome (CES) occurs when there is dysfunction of multiple lumbar and sacral nerve roots of the cauda equina.
What is the function of the foramen magnum?
The foramen magnum functions as a passage of the central nervous system through the skull connecting the brain with the spinal cord. On either side of the foramen magnum is an occipital condyle. These condyles form joints with the first cervical vertebra.