The ventral (and ventrolateral or anterolateral) columns carry both ascending information about pain and temperature, and descending motor information.
What are the three areas of the spine?
The spine has three normal curves: cervical, thoracic and lumbar. There are seven cervical vertebrae in the neck, 12 thoracic vertebrae in the torso and five lumbar vertebrae in the lower back.
What happens if the ventral root is damaged?
The ventral root generally controls the muscles and movements. If it is damaged, there will be weakness or paralysis in the muscles in the particular area of the body.
What are the three main 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 main functions of spinal cord?
The spinal cord has two functions: Transmission of nerve impulses. Neurons in the white matter of the spinal cord transmit sensory signals from peripheral regions to the brain and transmit motor signals from the brain to peripheral regions. Spinal reflexes.
What are the main parts of spinal cord?
The spinal cord is divided into four different regions: the cervical, thoracic, lumbar and sacral regions (Figure 3.1). The different cord regions can be visually distinguished from one another.
What are the four parts of the spinal cord?
According to its rostrocaudal location the spinal cord can be divided into four parts: cervical, thoracic, lumbar and sacral, two of these are marked by an upper (cervical) and a lower (lumbar) enlargement.
What are the functions of spinal nerves?
The spinal nerves receive sensory messages from tiny nerves located in areas such as the skin, internal organs, and bones. The spinal nerves send sensory messages to the sensory roots, then to sensory fibers in the posterior (back or dorsal) part of the spinal cord.
What are the 5 areas of the spine?
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. The cervical section of the spine is made up of the top seven vertebrae in the spine, C1 to C7, and is connected to the base of the skull.
What absorbs shock in the spine?
The intervertebral discs are soft structures which act as shock absorbers between each of the vertebrae (bones) in the spine. A single disc sits between each vertebra.