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A neural pathway is a bundle of axons that connects two or more different neurons, facilitating communication between them. Tracts are neural pathways that are located in the brain and spinal cord (central nervous system).
In this section on pathways, we will cover the important pathways that make up the central nervous system. The ascending and descending tracts are the first two articles, which cover the anatomy of the sensory and motor pathways of the central nervous system respectively.
A neural pathway connects one part of the nervous system to another using bundles of axons called tracts. The optic tract that extends from the optic nerve is an example of a neural pathway because it connects the eye to the brain; additional pathways within the brain connect to the visual cortex.
Nerves are bundles of axons in the peripheral nervous system (PNS) that act as information highways to carry signals between the brain and spinal cord and the rest of the body. Each axon is wrapped in a connective tissue sheath called the endoneurium.
Introduction. Brain and Spinal cord tracts. The central nervous system uses ascending and descending pathways to communicate with the external environment. Ascending Sensory Pathway. Spinothalmaic tract. The spinal cord, basically a highway for nerves, streamlines sensory and motor signals to the brain and the body.
Cranial nerve pathways are responsible for transmitting information between the brain and the rest of the body. They consist of different fibers carrying information from the brain and afferent fibers which carry information to the brain.
There are two types of pathways: ascending (afferent, sensory) or descending (efferent, motor). Ascending pathways send information from peripheral tissues and transmit it to the CNS. The CNS interprets this information so that the brain knows what’s going on in, and around, the body.
Explain the arrangement of gray and white matter in the spinal cord. Compare and contrast how white and gray matter process information. Describe the sensory and motor components of spinal nerves and the plexuses that they pass through. Explain what a dermatome is and its clinical significance.
Recieve motor information from the CNS and pass them to the periphery. Clinical relations. Nerve root impingement, disk protrusion, disk herniation, spinal stenosis, spinal nerve impingement. This article will discuss the anatomy and function of the spinal nerves.
The spinal cord is a long cylindrical extension of the central nervous system within the vertebral column's cavity. It is approximately 42.3 cm in length in males and 38.9 cm in females. [1] . Even though the spinal cord is almost symmetrical, it is enlarged in a fusiform shape in two regions in the form of cervical and lumbosacral enlargements.