What are the three funiculi of white matter found in the spinal cord?
The horns of gray matter divide the white matter into three columns (funiculi): dorsal, lateral and ventral.
What are three pairs of funiculi in the spinal cord?
The white matter forming the ascending and descending spinal tracts is grouped in three paired funiculi, or sectors: the dorsal or posterior funiculi, lying between the dorsal horns; the lateral funiculi, lying on each side of the spinal cord between the dorsal-root entry zones and the emergence of the ventral nerve …
What would you find in the white matter of the spinal cord?
White matter is composed of bundles of myelinated nerve cell processes (or axons). The axons connect various grey matter areas (the locations of nerve cell bodies) of the brain to each other and carry nerve impulses between neurons. … Myelin is found in almost all long nerve fibers and acts as electrical insulation.
What would you find in the white matter of the spinal cord quizlet?
White Matter’s function: The white matter of the spinal cord is composed of myelinated and nonmyelinated nerve fibers that allow communication between different parts of the spinal cord and between the cord and brain.
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 part of the spinal cord represents an increase in cell body?
What part of the spinal cord represents an increase in cell body mass for upper limb control? The spinal cord has an obvious enlargement in the cervical region, called the cervical enlargement, where the cell bodies controlling the upper limbs arise.
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.
What is common to all Funiculi?
A small nerve may consist of a single funiculus, but a larger nerve will have several funiculi collected together into larger bundles known as fascicles. Fascicles are bound together in a common membrane, the epineurium.
|Anatomical terms of neuroanatomy|
Is white matter just axons?
White matter is found in the deeper tissues of the brain (subcortical). It contains nerve fibers (axons), which are extensions of nerve cells (neurons). Many of these nerve fibers are surrounded by a type of sheath or covering called myelin. Myelin gives the white matter its color.