What structure contains denticulate ligaments that prevent side to side and inferior motion of the spinal cord?
The denticulate ligaments, also known as dentate ligaments, are triangular shaped ligaments that anchor the spinal cord along its length, at each side, to the dura mater.
What prevents lateral and inferior movement of the spinal cord?
They originate on either side of the spinal cord and keep the cord from moving laterally. Longitudinal (superior-inferior) movement is prevented by dural connections at the foramen magnum and coccygeal ligament.
How many pairs of spinal nerves do you have?
There are 31 pairs of spinal nerves and roots. Eight pairs of cervical nerves exit the cervical cord at each vertebral level. One member of the pair exits on the right side and the other exits on the left. The first cervical root exits above the C1 vertebra.
Which of these is the most inferior part of the spinal cord?
For example, the most superior cervical vertebrae is termed C1 and the most inferior C7, which is then followed by the T1 vertebrae of the thoracic region. The two lower most regions of vertebrae are the sacrum and the coccyx.
How many Denticulate ligaments do we have?
They function to provide stability to the spinal cord within the vertebral canal 1–3. There are usually 21 pairs evenly spaced along the length of the spinal cord but their number can range from 18 to 24 pairs.
What is the function of Denticulate ligaments?
Background: It is widely believed that the main function of denticulate ligaments (DLs) is to stabilize the spinal cord within the vertebral canal.
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 5 types of vertebrae?
As mentioned above, our vertebrae are numbered and divided into five regions: cervical, thoracic, lumbar, sacrum, and coccyx.
What prevents lateral movement of the spinal cord?
Uncovertebral joints (Joints of Luschka):
They allow for flexion and extension and limit lateral flexion in the cervical spine. They prevent posterior linear translation movements of the vertebral bodies,Important in providing stability and guiding the motion of the cervical spine.
What is a Denticulate?
1 : finely dentate or serrate a denticulate shell a denticulate margin of a leaf. 2 : cut into dentils.
What is the gray commissure of the spinal cord?
a bundle of nerve fibers that surrounds the central canal of the spinal cord and connects the anterior and dorsal horns of gray matter in each half of the cord.
Which structure in the spinal cord gives rise to nerves to the upper limbs?
The nerves of your spinal cord
The spinal cord has two enlarged areas, the cervical enlargement and the lumbosacral enlargement: The cervical enlargement gives rise to the spinal nerves that exit this portion of the cord and form the brachial plexus, which innervates the upper extremities.