Axon Essays

  • Central Nervous System Analysis

    885 Words  | 4 Pages

    For example, after being hit by a nail, a sensory receptor will respond to a stimulus by producing a receptor potential. Then, the sensory receptor propagates the nerve impulses along the axon of the sensory neuron to the axon terminal. The relay neurons send impulses to the area of the brain that allows conscious awareness about the reflex before it goes to the integrating center. According to Tortora G. J. (2016), the integrating center is a single synapse

  • Factors Leading to Joseph's Dehydration: A Case Study

    1022 Words  | 5 Pages

    The nerve impulse is sent from the axon of one neuron to the dendrite of another neuron. The neuromuscular junction as labeled in Part A of this assignment, shows that there is a space between the axon of a neuron and the motor plate of the muscle cell. The two parts do not actually touch each other. When the football player’s brain sends a message to move during the game, the nerve impulse is sent from neuron to muscle cell. The space (synapse) between the axon of a motor neuron and a muscle cell

  • Four Physiologic Systems

    1711 Words  | 7 Pages

    nervous system to the motor neurons. This signal that is sent is in the form of an electrical impulse. Once it gets to the motor neuron, it is intercepted via the dendrites. Afterwards the signal is sent to the axon hilock where is it determined by the neuron if it will be sent down the axon. It does this by utilizing IPSP’s and EPSP’s. Once the neuron has achieved enough EPSP’s to break the threshold an action potiential will be made. Just the opposite, if more IPSP’s are made by the neuron then an

  • Neuro Refractory Period

    657 Words  | 3 Pages

    The action potential is the signal that travels down the axon when a neuron is transmitting information. To understand the action potential, which is essentially the flow of ions in and out of the neuron that differ from the normal flow, one must understand the relation of ions, especially sodium and potassium, with the neuron. Neurons are covered by membranes that regulate the inflow and outflow of chemicals, and certain chemicals, like sodium and potassium can only flow in and out via channels

  • Central Nervous System Research Paper

    1117 Words  | 5 Pages

    Motor Neurons: carry impulses away from the brain and spinal cord to voluntary muscle. Neurons communicate via an electrochemical signal called an action potential that sends information down an axon and away from the cell body. They are based on the movements of ions through channels in the membrane of an axon. A molecular message is sent to neighboring neurons when an action potential is reached. This is an all or nothing process. Triggering Action Potential: At rest, a neuron holds a balance of

  • Nt1310 Unit 4 Assignment

    1834 Words  | 8 Pages

    Question 1 a. In detail, elucidate how your device is representative of/different from the physiological environment. Indicate how these variables may affect neural functionality. In order to record neuronal signals, my device, specifically the electrode, will be inserted into the rat sciatic nerve to record extracellularly the action potential generated by the neurons. There are several differences between the electrodes and the medium into which they will be inserted. Depending on these differences

  • Transcranial Magnetic Stimulation Essay

    3350 Words  | 14 Pages

    Transcranial magnetic stimulation (TMS) is a non-invasive tool for the electrical stimulation of neural tissue, including cerebral cortex, spinal roots, and cranial and peripheral nerves. TMS can be applied as single pulses of stimulation, pairs of stimuli separated by variable intervals to the same or different brain areas, or as trains of repetitive stimuli at various frequencies. Single stimuli can depolarise neurons and evoke measurable effects. Trains of stimuli (repetitive TMS) can modify excitability

  • Nervous System Quiz

    1705 Words  | 7 Pages

    Axons are in effect the primary transmission lines of the nervous system, and as bundles, they help make up nerves. Multipolar neurons contain one axon and many dendrites. List the types of glial cells and assign each to the proper division of the nervous system, along with their function(s) The glial cells surround neurons

  • The Phenomenon: The Central Nervous System

    1680 Words  | 7 Pages

    The nervous system consists of two divisions; the central nervous system and the peripheral nervous system. The central nervous system is the combination of the nerves within the skull and spine, while the peripheral nervous system is the nervous system that goes everywhere inside (autonomic nervous system) and outside (somatic nervous system) around the body except skull and spine. The somatic nervous system has two kinds of nerves; afferent nerves that carry sensory signals from the external

  • Essay On The Digestive System

    777 Words  | 4 Pages

    voluntary and involuntary operations such as speech, walking, blinking and breathing these senses are stimulated by the system of neurons, neurons are cells within the nervous system. Neurons consists of four major sections such as a cell body, an axon, dendrites, and synaptic terminal. The purpose of neurons is receiving incoming information and communicating

  • Hodgkin-Huxley Model Essay

    895 Words  | 4 Pages

    Research Question: To what extent do Hodgkin-Huxley models successfully define action potential generation of an organism mathematically? Background information: Action Potential is a moving exchange of ions that runs along the length of the axon. (http://webspace.ship.edu/cgboer/actionpot.html) To know more about action potential, we first need to understand what a neuron is and where in the neuron action potential occurs. Below is an annotated diagram of what a neuron looks like. A sensory neuron-

  • Chemical Synapse Essay

    419 Words  | 2 Pages

    A synapse consists of 2 parts: the axon terminals or axonal boutons of the presynaptic neuron or “sending” cell and the axon endings of the “receiving” cell, the postsynaptic neuron. Both parts are divided by the synaptic cleft. Unlike the axon itself, the presynaptic neuron does not possess Na/K channels. Instead, it is equipped with voltage-gated calcium channels and small vesicles that

  • Bio202 Endocrine Research Paper

    1633 Words  | 7 Pages

    hypothalamus communicates with the posterior lobe of the pituitary gland. It is a nervous system connection with direct connecting neurons. The neurons are located in the hypothalamus and then axons extend down to the posterior lobe of the pituitary gland. The neurons produce hormones that slide down the axons and end up in the posterior lobe. The posterior lobe is then responsible for storing the hormones made by the neurons of the hypothalamus. The hypothalamo-hypophyseal portal system is the specific

  • TQ 1: The Mammalian Nervous System

    1726 Words  | 7 Pages

    TAQ 1: a) b) The mammalian nervous system is split into two. The central nervous system consists of the brain and the spinal cord, which coordinates and controls the movement and activities of the body and the peripheral nervous system, made up of the somatic and autonomic system, which forms the connections between the organs and the central nervous system. The brain and the spinal cord work together to aid the coordination of the body. The brain can be divided into three

  • The Nervous System: The Brain And The Nervous System

    2083 Words  | 9 Pages

    The nervous system is a complex network of nerves and cells that carry messages to and from the brain and spinal cord to various parts of the body. The nervous system includes both the Central nervous system and Peripheral nervous system. The Central nervous system is made up of the brain and spinal cord and The Peripheral nervous system is made up of the Somatic and the Autonomic nervous systems. The nervous system is responsible for coordinating all of the body 's activities. It controls not only

  • Pituitary Gland Function

    791 Words  | 4 Pages

    Instead, axons from two groups of hypothalamic neurons - the supraoptic nucleus (SON) and paraventricular nucleus (PVN) – terminate in the posterior pituitary. These specialized neurons produce the hormones ADH (antidiuretic hormone), also known as vasopressin,

  • Cerebellum Research Paper

    893 Words  | 4 Pages

    Cerebellum is a complex structure of neurons located at the base of structure in the posterior fossa. It lies back to the occipital lobe of the brain and dorsal to the brainstem, at the level of the pons and the medulla. The cerebellum is separated from the brain stem by the fourth ventricle. It is also connected to the brainstem by three branches: 1. superior cerebellar branch 2. medial cerebellar branch 3. inferior cerebellar branch Cerebellum functions as the motor brain and it is important for

  • Exercise Affects The Brain

    747 Words  | 3 Pages

    How Exercise Affects the Brain Exercise affects many parts of the body. People may say that the brain works as a muscle. Exercising can improve brain skills as well as it improves muscles. Exercise is defined as activity requiring physical effort, carried out especially to sustain or improve health and fitness. Improving memory and creativity are just a few things exercise can do for the brain. Exercising causes many positive affects on the brain. Deckelman 2 QUESTIONS: What part of

  • Essay On Somatic Senses

    992 Words  | 4 Pages

    Somatic Senses Somatic Senses are the components of the central and peripheral nervous systems that receive and interpret sensory information from organs in the joints, ligaments, muscles, and skin. This system processes information about the length, degree of stretch, tension, and contraction of muscles; pain; temperature; pressure; and joint position. Along with these are sensory receptors. Sensory Receptors function to detect changes in the environment and stimulate neurons to send nerve impulses

  • Touch Threshold Case Study

    1552 Words  | 7 Pages

    Touch threshold Problem statement Determination of two points threshold (lateral and longitudinal) as function of orientation of ‘alsthesiometer’ on forearm, employing method of constant stimulation. introduction SKIN: the skin is innervated by large and small myelinated neurons. these neurons terminate in various kind of encapsulated endings called as hair follicles. for many years a consented effort was made to correlate specific sensations as cold with the type of encapsulated endings but this