Nucleus proprius
Encyclopedia
The Nucleus proprius is a layer of the spinal cord
adjacent to the substantia gelatinosa
. Nucleus proprius constitutes the bulk of the dorsal horn and receives inputs from the dorsal root ganglions that carry sensory information, such as light touch, as well as pain and temperature information. Cells in this nucleus project to deeper laminae
of the spinal cord
, to the posterior column nuclei, and to other supraspinal relay centers including the midbrain, thalamus
, and hypothalamus
. Rexed laminae
III, IV, and V make up the nucleus proprius.
Nucleus proprius (NP), along with nucleus dorsalis (ND) are involved in sensing fine touch and proprioception.
Spinal cord
The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the brain . The brain and spinal cord together make up the central nervous system...
adjacent to the substantia gelatinosa
Substantia gelatinosa
Substantia gelatinosa can refer to:* Substantia gelatinosa of Rolando * Substantia gelatinosa centralisSubstantia gelatinosa is a structure involved in pain transmission....
. Nucleus proprius constitutes the bulk of the dorsal horn and receives inputs from the dorsal root ganglions that carry sensory information, such as light touch, as well as pain and temperature information. Cells in this nucleus project to deeper laminae
Lamina of the vertebral arch
The laminæ are two broad plates, extending dorsally and medially from the pedicles, fusing to complete the roof of the vertebral arch.Their upper borders and the lower parts of their anterior surfaces are rough for the attachment of the ligamenta flava....
of the spinal cord
Spinal cord
The spinal cord is a long, thin, tubular bundle of nervous tissue and support cells that extends from the brain . The brain and spinal cord together make up the central nervous system...
, to the posterior column nuclei, and to other supraspinal relay centers including the midbrain, thalamus
Thalamus
The thalamus is a midline paired symmetrical structure within the brains of vertebrates, including humans. It is situated between the cerebral cortex and midbrain, both in terms of location and neurological connections...
, and hypothalamus
Hypothalamus
The Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions...
. Rexed laminae
Rexed laminae
The Rexed laminae comprise a system of ten layers of grey matter , identified in the early 1950s by Bror Rexed to label portions of the spinal cord...
III, IV, and V make up the nucleus proprius.
Nucleus proprius (NP), along with nucleus dorsalis (ND) are involved in sensing fine touch and proprioception.