The sympathetic nervous system is part of the autonomic nervous system, an extensive network of neurons that regulate the body's involuntary processes.Specifically, the sympathetic nervous system controls aspects of the body related to the flight-or-fight response, such as mobilizing fat reserves, increasing the heart rate, and releasing adrenaline. Examples of The Nervous System. Smooth muscle cells of blood vessels, epithelial cells of skin, and the cells of central and peripheral nervous system are a few examples of cell types that express versican physiologically. She slowly walks from one side to the other. The nerves and nerve networks that make up the PNS are actually bundles of axons from neuron cells. Gravity. PNS comprises of nerves and neurons outside of brain and spinal cord. The two basic functions of the peripheral nervous system occur, for example, when you answer your cell phone after hearing it ring. All nerves located outside the brain and the spinal cord. Some are quite common, for example, lepromatous neuropathy, diabetic neuropathy [ 14 ], Guillain-Barré syndrome and acute motor axonal neuropathy [ 12 ]. Functionally, the PNS is divided into sensory (afferent) and motor (efferent) nerves, depending on whether they bring information to the CNS from sensory receptors or carry instructions towards muscles, organs or other effectors. It can regulate the strength of muscle contractility. Central to the functioning of the nervous system is an extensive network of specialized cells called neurons. Test. Gravity. Cranial nerves also have a Latin or Greek name, based on their structure or their effector organ. The Peripheral Nervous System . The various ways through which the peripheral nervous system may be injured and the resulting effects on the body are mentioned below. Weakness may affect the … As well as controlling your muscles and joints, it sends all the information from your senses back to your brain. The somatic nervous system is part of the peripheral nervous system. Anatomically, the PNS can be divided into spinal and cranial nerves, depending on whether they emerge from the spinal cord or the brain and brainstem. 1. Cranial nerves are numbered using Roman numerals I-XII, depending on their position while exiting the cranium. The somatic nervous system transmits sensory and motor signals to and from the central nervous system. The first is the sensory nervous system, carrying signals from the viscera, sense organs, muscles, bones and joints towards the CNS. The second example shows the constriction of the pupil as a result of the activation of the Eddinger-Westphal nucleus (a cerebral ganglion). Notalgia paresthetica and brachioradial pruritus are two distinct examples of severe itches that arise in the peripheral nervous system rather than on the skin. Peripheral Nervous System - Definition, Function & Example ... How the Peripheral Nervous System Works - Verywell Mind. The peripheral nervous system is divided into the following sections: Sensory Nervous System —sends information to the CNS from internal organs or from external stimuli. The brain is the body’s “control center.” The CNS has various centers located within it that carry out the sensory, motor and integration of data. Learn more. It includes the cranial nerves and spinal nerves from their origin to their end. These functions help prepare an organism’s body for the physical strain required to escape a potentially dangerous situation or to fend off a predator. As well as controlling your muscles and joints, it sends all the information from your senses back to your brain. Name and describe two disorders of the peripheral nervous system. This auditory information is subsequently relayed into your brain where it is processed and the decision to answer the phone is made (integrative function). to. The sound of the ringing cell phone stimulates sensory receptors in your ears (sensory function). As well as controlling your muscles and joints, it sends all the information from your senses back to your brain. The enteric nervous system is an independent subsystem of the peripheral nervous system. PLAY. 3. 2. Science. The peripheral nervous system is made of nerves, ganglia, and plexuses. Cranial nerves emerge in pairs on either side of the base of the skull, through small openings called foramina. Sensory nervous cells carry information to the CNS and motor nervous cells carry information from the CNS to organs in the whole body. Test. Examples of autonomic nervous system in a sentence, how to use it. Text in this Example: Peripheral Neuropathy Brain Spinal cord Peripheral neuropathy describes damage to the peripheral nervous system, which transmits information from the brain and spinal cord to every other part of the body. Some of your peripheral nervous system (PNS) is under your voluntary control - the nerves that carry instructions from your brain to your limbs, for example. Thesenerves carry sensory as well as m… The image shows the region near the spinal cord, where every spinal nerve has a posterior and anterior root. Sympathetic Nervous System Definition. The peripheral nervous system (PNS) consists of all the rest; it is composed of nerves and ganglia. The functional classification of the PNS divides it into three categories. The peripheral nervous system refers to the parts of the nervous system that are outside the central nervous system, that is, those outside the brain and spinal cord. Autonomic nervous system Thesomatic nervous system comprises of the spinal nerves and the cranial nerves. In the peripheral nervous system, there are two kinds of cells. Connective tissue CMT affects about one out of every 2,500 people in the eye. 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