Nerves are connected to each other through connective tissue, they have the appearance of a whitish cord, and just like the axons of the neuron, they are covered by a layer of myelin that helps protect the nerve impulses.The difference between a neuron and a nerve has confused more than one, since both are involved in the transmission of nerve impulses, so it is proper to clear up that while the neuron is a nerve cell, the nerve is a set of neuronal axons. related to the coordination of body movements, posture and balance. The autonomous nervous system is divided into 2 subsystems (and this is the last subdivision we will see! When the nerve impulse reaches the end of the axon, molecules called “neurotransmitters” help carry the nerve impulse through the intermediate space between the transmitting and receiving neurons (this space is called a synapse).Dendrites from the following neuron receive the nerve impulse and the cycle is repeated.The following image illustrates the process in a more panoramic way:Communication between 2 neurons through nerve impulsesThe nervous system is divided into central and peripheral:It is the center of coordination and control of the organism, responsible for receiving the different sensations that come from both the outside and the inside of the body, which it interprets to convey the order to respond.This system consists of the encephalon and spinal cord, analyzed below. transmit nerve impulses from the central nervous system to the muscles of the body. responsible for carrying information in a downward direction, from the central nervous system to the glands, as well as smooth and striated muscles.
Let’s take a look at the first one:It is called this way because it performs its functions automatically and its operation cannot be controlled voluntarily.
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its function is to recover the normal state of the organism after an effort or stress situation, thus being the antithesis of the sympathetic system.
It acts as the pathway or gate of the sensory impulses that travel to the brain and the motor impulses that go from the brain to different parts of the body.It is also the center of reflex movements that are immediate responses to external stimuli; examples of these are to blink automatically when an object is approaching, to remove the limb immediately when it accidentally touches a hot surface, or to contract the pupil of the eye in bright light.Let’s look at an example of what happens inside the nervous system of the dog during a reflex act, which will help us to better understand the connection between the different neurons:The dog has pricked himself with a nail while walking; this stimulates the pain receptors of the skin, initiating the nerve impulse through a sensory neuron to arrive until the spinal cord. an extension whose function is to draw the nerve impulse from the cell body to take it to other neurons. Nervous System Disorders and Effects of Injuries in DogsPrinciples of Therapy of the Nervous System in DogsCongenital and Inherited Disorders of the Nervous System in DogsDisorders of the Peripheral Nerves and Neuromuscular Junction in DogsCentral Nervous System Disorders Caused by Parasites in DogsThe glandular stomach (abomasum) of ruminants is susceptible to several diseases. These electrical messages are transmitted from neuron to neuron, but also from neuron to other types of cells, like muscles or glands.There are different types of neurons responsible for performing various tasks. The nervous system is responsible for receiving information from both the outside and the inside of the body, analyzing and ordering answers that help you adapt to each situation. His brain also changes depending on where and how he lives; when it is sending out signals of stress to the body, it becomes quicker at noticing small changes in the environment. For example, the olfactory and optic nerve are sensory, the oculomotor nerve is motor, while the vagus and facial nerve are mixed in nature. ): in charge of preparing the body in an emergency situation or escape, causing the pupils to dilate, the sweat glands to activate and the heartbeat to accelerate, in order to send blood to different parts of the body that may need it. This system is the most complex and sophisticated of the body, and is formed by a network of tissues whose basic unit is the neuron, which we will examine shortly.
If so, this is usually the sign of a degenerative problem due to chronic wear and tear of the joints. From there, it passes to a connecting neuron called a relay neuron, which in turn contacts one or more motor neurons, transmitting the nerve impulse to the muscles to remove the paw from the nail.The spinal cord is an area susceptible to damage caused by falls from a great height, sudden movements of the body, car accidents, fractures in the bodies of the vertebrae and hernias in the intervertebral discs.Damage to the affected spinal segment can be mild, moderate or severe. Extremities means their limbs and appendages, i.e.
© 2020 Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc., Kenilworth, NJ, USA The nervous system of the dog. Among them are the auditory nerves, optic nerves and olfactory nerves. View All News >
“Seizures are episodes of abnormal electrical activity in the brain and we break the causes … There are 36 pairs of them and they are all of mixed nature, formed by a ventral root (sensitive) and a dorsal root (motor).Now we are going to see the second division of the nervous system (remember that the first was the central one).It is formed by nerves that extend outside of the central nervous system, which branch to all parts of the body, including the extremities. Reflexes are simple networks found in the nervous system of all animals.
: stores and analyzes the information received previously, issuing answers according to the situation.
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