Brain tissue that is richest in cellular bodies and synapses.
The cerebral cortex of the brain, which contains nerve cell bodies whose function is to route sensory or motor stimulus to the central nervous system (CNS).
The neural tissue made up largely of nerve cell bodies that constitutes the cortex covering the cerebral hemisphere, the nuclei in lower brain areas, columns of the spinal cord, and the ganglia of the autonomic nervous system.
Gray tissue of the central nervous system, made up primarily of nerve cell bodies and neuroglia cells. It is found in the cerebral cortex and other parts of the brain and forms an H-shaped center of the spinal cord surrounded by lighter, so-called white matter; gray matter in the spinal column functions as the center for spinal reflex activity.
Brain and spinal-cord tissue made up primarily of unmyelinated fibers of cell bodies | and dendrites of nerve cells.
Gray nervous tissue in the brain and spinal cord composed primarily of neuron cell bodies and unmyelinated axons. Gray matter is located in the cortex of the cerebrum, cerebellum, and core of the spinal cord. Nuclei in the gray matter of the spinal cord act as centers for all spinal reflexes.
The darker colored tissues of the central nervous system, composed mainly of the cell bodies of neurons, branching dendrites, and glial cells {compare white matter). In .the brain gray matter forms the cerebral cortex and the outer layer of the cerebellum; in the spinal cord the gray matter lies centrally and is surrounded by white matter.
Nerve tissue composed mainly of the cell bodies of neurons rather than their myelinated processes. The term is generally applied to the gray portions of the central nervous system, which include the cerebral cortex, basal ganglia, and nuclei of the brain, and the gray columns of the spinal cord, which form an H-shaped region surrounded by white matter. Sympathetic ganglia and nerves may also be gray.
Region of the spinal cord and brain where cell bodies of neurons reside.
The brain region housing neurons, in contrast to white matter that consists of nerve tracts.