The cervical region of the spinal cord contains the most white matter. This is primarily due to the presence of ascending and descending nerve fibers that carry sensory and motor information between the brain and the rest of the body. As you move down the spinal cord to the thoracic and lumbar regions, the amount of white matter decreases while the gray matter increases, reflecting the local processing of information in those areas.
grey matter- the centre area of the spinal cord that contains cell bodies, their axons and their dendrites. white matter- the outer layer of the spinal cord that contains only myelin coated axons.
the part of the spinal cord that contains mylinated axons is the White matter portion.
No, the white matter in brain tissue is the area of brain tissue that contains the nerve fibre tracts with their covering of myelin which appears white.
White matter consists of neurons that have axons coated in something called myelin, which allows the neuron to fire faster. Gray matter consists of neurons that are not protected by myelin, and fire slower than myelinated neurons.
The spinal cord is mainly white, with a grey, butterfly shaped area of grey at its center.
what is an area of gray matter in the spinal cord
The grey matter of the brain. Myelin is the insulation (like rubber around a copper wire) to help transmit electrical pulses. The white matter of the brain, our spinal cord and peripheral nerves all transmit signals wit the help of myelin. The grey matter is where the thoughts or actions originate and mostly consist of cell bodies.
Gray matter in the cerebrum is located in the cerebral cortex and in the deeper basal nuclei, and the white matter lies deep to the neural cortex and around the basal nuclei (Fundamentals of Anatomy and Physiology, Martini & Nath, 2009, p. 480).The central area of the spinal cord is gray matter, and the outer surface of much of the brain consist of gray matter called cortex. (Anatomy and Physiology, Seeley Stephens Tate, 2008, p. 382)
White matter in the brain consists of nerve fibers (axons) that connect different parts of the brain to each other and to the spinal cord. It acts as a communication network, allowing neurons in different brain regions to send signals and work together to carry out various functions such as motor coordination, sensory processing, and cognitive tasks.
It is the area between the pia matter and the arachnoid membrane of the brain. The pia matter is part of the membrane that surrounds the brain and spinal cord. The arachnoid membrane is the inner layer of three layers that surround the brain and spinal cord.
Pantanal - Brazil
it depends on which size it is and how much matter it contains