Cylindrical bundles of fibers (the axons of neurons), that emanate from the brain and spinal cord, and branch repeatedly to innervate every part of the body.
Nervous Tissue. Nervous tissue consists of nerve cells and associated supporting cells. All cells exhibit electrical properties, but nerve cells, also called neurons, are specifically designed to transmit electrical impulses from one site in the body to another, and to receive and process information. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is limited to the brain and spinal cord, all other nervous tissue belongs to the peripheral nervous system. Structure [edit]. Nervous tissue is composed of neurons, also called nerve cells, and neuroglial cells. Typically, nervous tissue is categorized into four types of tissue. In the central nervous system (CNS), the tissue types found are grey matter and white matter. It is composed of neurons, or nerve cells, which receive and transmit impulses, and neuroglia, also known as glial cells or more commonly as just glia (from the Greek, meaning glue), which assist the propagation of the nerve impulse as well as providing nutrients to the neuron. range in shape from squamous to columnar, many are ciliated; they line the central cavities of the brain and the spinal cord where they make a permeable barrier betw. the cerebrospinal fluid that fills those cavities and the tissue fluid bathing the cells of the CNS; beating cilia help circulate cerebrospinal fluid. Create a free account to save it. Advertisement Upgrade to remove ads. These are vocabulary words from Chapter 11 of the Human anatomy and Physiology Book, 6th edition, by Elaine B. Marieb from the Pearson Company. The peripheral nervous system (PNS) is a collective term for the nervous system structures that do not lie within the CNS. The large majority of the axon bundles called nerves are considered to belong to the PNS, even when the cell bodies of the neurons to which they belong reside within the brain or spinal cord. The size of the nervous system ranges from a few hundred cells in the simplest worms, to around 100 billion cells in humans. The central nervous system functions to send signals from one cell to others, or from one part of the body to others and to receive feedback. The processes extend from the nerve cell to communicate with other cells. There are two types of processes: dendrites that receive impulses and axons that transmit impulses. All nerve cells have an axon (usually only one), which is usually the longest process that extends from the cell. The nervous system is divided into the central nervous system (CNS) and the peripheral nervous system (PNS). The central nervous system is limited to the brain and spinal cord, all other nervous tissue belongs to the peripheral nervous system. The nervous system is the part of an animal 's body that coordinates its voluntary and involuntary actions and transmits signals to and from different parts of its body. Nervous tissue first arose in wormlike organisms about 550 to 600 million years ago. The size of the nervous system ranges from a few hundred cells in the simplest worms, to around 100 billion cells in humans. The central nervous system functions to send signals from one cell to others, or from one part of the body to others and to receive feedback. The nerve cells are ensheathed in the cns by myelin which is a  dielectric material. The myelin layer extends only upto the axon of  a neuron. It is essential for the proper … functioning of the nervous  system. Alexander Rowan. Nerves are not bundles of neurons but are bundles of axons. Nerves  send information through electrical impulses that turn into  chemical and back again to electrical. In vertebrate species it consists of two main parts, the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The PNS consists mainly of nerves, which are enclosed bundles of the long fibers or axons, that connect the CNS to every other part of the body. The size of the nervous system ranges from a few hundred cells in the simplest worms, to around 100 billion cells in humans. The central nervous system functions to send signals from one cell to others, or from one part of the body to others and to receive feedback. Structure of a Nerve. Nerve bundle of neuron fibers/ processes wrapped in connective tissue coverings that extends to and/or from the CNS and visceral organs or structures of the body periphery (muscles, skin, etc.). 1. Sensory/ Afferent nerves nerves that conduct only sensory impulses into the brain or spinal cord. 2.  The nervous system derives its name from nerves, which are cylindrical bundles of fibers (the axons of neurons), that emanate from the brain and spinal cord, and branch repeatedly to innervate every part of the body. The size of the nervous system ranges from a few hundred cells in the simplest worms, to around 100 billion cells in humans. The central nervous system functions to send signals from one cell to others, or from one part of the body to others and to receive feedback.
http://courseweb.edteched.uottawa.ca/medicine-histology/English/SS_BasicTissues/Nervous_Tissue.htm https://en.wikipedia.org/wiki/Connective_tissue_in_the_peripheral_nervous_system https://quizlet.com/1730056/a-p-chapter-11-flash-cards/ https://en.wikipedia.org/wiki/Neural http://courseweb.edteched.uottawa.ca/medicine-histology/English/SS_BasicTissues/Nervous_Tissue.htm https://en.wikipedia.org/wiki/Neural http://www.answers.com/Q/A_bundle_of_nerve_processes_inside_the_CNS https://en.wikipedia.org/wiki/Neural http://fau.pearlashes.com/anatomy/Chapter%2017/Chapter%2017.htm https://en.wikipedia.org/wiki/Neural
what is a bundle of neuronal processes